tcg-ppc64: Implement movcond

[qemu.git] / configure

#!/bin/sh
#
# qemu configure script (c) 2003 Fabrice Bellard
#
# set temporary file name
if test ! -z "$TMPDIR" ; then
    TMPDIR1="${TMPDIR}"
elif test ! -z "$TEMPDIR" ; then
    TMPDIR1="${TEMPDIR}"
else
    TMPDIR1="/tmp"
fi

TMPC="${TMPDIR1}/qemu-conf-${RANDOM}-$$-${RANDOM}.c"
TMPO="${TMPDIR1}/qemu-conf-${RANDOM}-$$-${RANDOM}.o"
TMPE="${TMPDIR1}/qemu-conf-${RANDOM}-$$-${RANDOM}.exe"

# NB: do not call "exit" in the trap handler; this is buggy with some shells;
# see <[email protected]>
trap "rm -f $TMPC $TMPO $TMPE" EXIT INT QUIT TERM
rm -f config.log

# Print a helpful header at the top of config.log
echo "# QEMU configure log $(date)" >> config.log
printf "# Configured with:" >> config.log
printf " '%s'" "$0" "$@" >> config.log
echo >> config.log
echo "#" >> config.log

error_exit() {
    echo
    echo "ERROR: $1"
    while test -n "$2"; do
        echo "       $2"
        shift
    done
    echo
    exit 1
}

do_cc() {
    # Run the compiler, capturing its output to the log.
    echo $cc "$@" >> config.log
    $cc "$@" >> config.log 2>&1 || return $?
    # Test passed. If this is an --enable-werror build, rerun
    # the test with -Werror and bail out if it fails. This
    # makes warning-generating-errors in configure test code
    # obvious to developers.
    if test "$werror" != "yes"; then
        return 0
    fi
    # Don't bother rerunning the compile if we were already using -Werror
    case "$*" in
        *-Werror*)
           return 0
        ;;
    esac
    echo $cc -Werror "$@" >> config.log
    $cc -Werror "$@" >> config.log 2>&1 && return $?
    error_exit "configure test passed without -Werror but failed with -Werror." \
        "This is probably a bug in the configure script. The failing command" \
        "will be at the bottom of config.log." \
        "You can run configure with --disable-werror to bypass this check."
}

compile_object() {
  do_cc $QEMU_CFLAGS -c -o $TMPO $TMPC
}

compile_prog() {
  local_cflags="$1"
  local_ldflags="$2"
  do_cc $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC $LDFLAGS $local_ldflags
}

# symbolically link $1 to $2.  Portable version of "ln -sf".
symlink() {
  rm -rf "$2"
  mkdir -p "$(dirname "$2")"
  ln -s "$1" "$2"
}

# check whether a command is available to this shell (may be either an
# executable or a builtin)
has() {
    type "$1" >/dev/null 2>&1
}

# search for an executable in PATH
path_of() {
    local_command="$1"
    local_ifs="$IFS"
    local_dir=""

    # pathname has a dir component?
    if [ "${local_command#*/}" != "$local_command" ]; then
        if [ -x "$local_command" ] && [ ! -d "$local_command" ]; then
            echo "$local_command"
            return 0
        fi
    fi
    if [ -z "$local_command" ]; then
        return 1
    fi

    IFS=:
    for local_dir in $PATH; do
        if [ -x "$local_dir/$local_command" ] && [ ! -d "$local_dir/$local_command" ]; then
            echo "$local_dir/$local_command"
            IFS="${local_ifs:-$(printf ' \t\n')}"
            return 0
        fi
    done
    # not found
    IFS="${local_ifs:-$(printf ' \t\n')}"
    return 1
}

# default parameters
source_path=`dirname "$0"`
cpu=""
interp_prefix="/usr/gnemul/qemu-%M"
static="no"
cross_prefix=""
audio_drv_list=""
audio_card_list="ac97 es1370 sb16 hda"
audio_possible_cards="ac97 es1370 sb16 cs4231a adlib gus hda"
block_drv_whitelist=""
host_cc="cc"
libs_softmmu=""
libs_tools=""
audio_pt_int=""
audio_win_int=""
cc_i386=i386-pc-linux-gnu-gcc
libs_qga=""
debug_info="yes"

# Don't accept a target_list environment variable.
unset target_list

# Default value for a variable defining feature "foo".
#  * foo="no"  feature will only be used if --enable-foo arg is given
#  * foo=""    feature will be searched for, and if found, will be used
#              unless --disable-foo is given
#  * foo="yes" this value will only be set by --enable-foo flag.
#              feature will searched for,
#              if not found, configure exits with error
#
# Always add --enable-foo and --disable-foo command line args.
# Distributions want to ensure that several features are compiled in, and it
# is impossible without a --enable-foo that exits if a feature is not found.

bluez=""
brlapi=""
curl=""
curses=""
docs=""
fdt=""
nptl=""
pixman=""
sdl=""
virtfs=""
vnc="yes"
sparse="no"
uuid=""
vde=""
vnc_tls=""
vnc_sasl=""
vnc_jpeg=""
vnc_png=""
vnc_ws=""
xen=""
xen_ctrl_version=""
xen_pci_passthrough=""
linux_aio=""
cap_ng=""
attr=""
libattr=""
xfs=""

vhost_net="no"
kvm="no"
gprof="no"
debug_tcg="no"
debug="no"
strip_opt="yes"
tcg_interpreter="no"
bigendian="no"
mingw32="no"
gcov="no"
gcov_tool="gcov"
EXESUF=""
prefix="/usr/local"
mandir="\${prefix}/share/man"
datadir="\${prefix}/share"
qemu_docdir="\${prefix}/share/doc/qemu"
bindir="\${prefix}/bin"
libdir="\${prefix}/lib"
libexecdir="\${prefix}/libexec"
includedir="\${prefix}/include"
sysconfdir="\${prefix}/etc"
local_statedir="\${prefix}/var"
confsuffix="/qemu"
slirp="yes"
fmod_lib=""
fmod_inc=""
oss_lib=""
bsd="no"
linux="no"
solaris="no"
profiler="no"
cocoa="no"
softmmu="yes"
linux_user="no"
bsd_user="no"
guest_base="yes"
uname_release=""
mixemu="no"
aix="no"
blobs="yes"
pkgversion=""
pie=""
zero_malloc=""
trace_backend="nop"
trace_file="trace"
spice=""
rbd=""
smartcard_nss=""
usb_redir=""
glx=""
zlib="yes"
guest_agent="yes"
want_tools="yes"
libiscsi=""
coroutine=""
seccomp=""
glusterfs=""
virtio_blk_data_plane=""
gtk=""
gtkabi="2.0"
tpm="no"
libssh2=""

# parse CC options first
for opt do
  optarg=`expr "x$opt" : 'x[^=]*=\(.*\)'`
  case "$opt" in
  --cross-prefix=*) cross_prefix="$optarg"
  ;;
  --cc=*) CC="$optarg"
  ;;
  --source-path=*) source_path="$optarg"
  ;;
  --cpu=*) cpu="$optarg"
  ;;
  --extra-cflags=*) QEMU_CFLAGS="$optarg $QEMU_CFLAGS"
                    EXTRA_CFLAGS="$optarg"
  ;;
  --extra-ldflags=*) LDFLAGS="$optarg $LDFLAGS"
                     EXTRA_LDFLAGS="$optarg"
  ;;
  --enable-debug-info) debug_info="yes"
  ;;
  --disable-debug-info) debug_info="no"
  ;;
  esac
done
# OS specific
# Using uname is really, really broken.  Once we have the right set of checks
# we can eliminate its usage altogether.

# Preferred compiler:
#  ${CC} (if set)
#  ${cross_prefix}gcc (if cross-prefix specified)
#  system compiler
if test -z "${CC}${cross_prefix}"; then
  cc="$host_cc"
else
  cc="${CC-${cross_prefix}gcc}"
fi

ar="${AR-${cross_prefix}ar}"
as="${AS-${cross_prefix}as}"
cpp="${CPP-$cc -E}"
objcopy="${OBJCOPY-${cross_prefix}objcopy}"
ld="${LD-${cross_prefix}ld}"
libtool="${LIBTOOL-${cross_prefix}libtool}"
strip="${STRIP-${cross_prefix}strip}"
windres="${WINDRES-${cross_prefix}windres}"
pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
query_pkg_config() {
    "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
}
pkg_config=query_pkg_config
sdl_config="${SDL_CONFIG-${cross_prefix}sdl-config}"

# default flags for all hosts
QEMU_CFLAGS="-fno-strict-aliasing $QEMU_CFLAGS"
QEMU_CFLAGS="-Wall -Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
QEMU_INCLUDES="-I. -I\$(SRC_PATH) -I\$(SRC_PATH)/include"
if test "$debug_info" = "yes"; then
    CFLAGS="-g $CFLAGS"
    LDFLAGS="-g $LDFLAGS"
fi

# make source path absolute
source_path=`cd "$source_path"; pwd`

check_define() {
cat > $TMPC <<EOF
#if !defined($1)
#error $1 not defined
#endif
int main(void) { return 0; }
EOF
  compile_object
}

if check_define __linux__ ; then
  targetos="Linux"
elif check_define _WIN32 ; then
  targetos='MINGW32'
elif check_define __OpenBSD__ ; then
  targetos='OpenBSD'
elif check_define __sun__ ; then
  targetos='SunOS'
elif check_define __HAIKU__ ; then
  targetos='Haiku'
else
  targetos=`uname -s`
fi

# Some host OSes need non-standard checks for which CPU to use.
# Note that these checks are broken for cross-compilation: if you're
# cross-compiling to one of these OSes then you'll need to specify
# the correct CPU with the --cpu option.
case $targetos in
Darwin)
  # on Leopard most of the system is 32-bit, so we have to ask the kernel if we can
  # run 64-bit userspace code.
  # If the user didn't specify a CPU explicitly and the kernel says this is
  # 64 bit hw, then assume x86_64. Otherwise fall through to the usual detection code.
  if test -z "$cpu" && test "$(sysctl -n hw.optional.x86_64)" = "1"; then
    cpu="x86_64"
  fi
  ;;
SunOS)
  # `uname -m` returns i86pc even on an x86_64 box, so default based on isainfo
  if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
    cpu="x86_64"
  fi
esac

if test ! -z "$cpu" ; then
  # command line argument
  :
elif check_define __i386__ ; then
  cpu="i386"
elif check_define __x86_64__ ; then
  cpu="x86_64"
elif check_define __sparc__ ; then
  if check_define __arch64__ ; then
    cpu="sparc64"
  else
    cpu="sparc"
  fi
elif check_define _ARCH_PPC ; then
  if check_define _ARCH_PPC64 ; then
    cpu="ppc64"
  else
    cpu="ppc"
  fi
elif check_define __mips__ ; then
  cpu="mips"
elif check_define __ia64__ ; then
  cpu="ia64"
elif check_define __s390__ ; then
  if check_define __s390x__ ; then
    cpu="s390x"
  else
    cpu="s390"
  fi
elif check_define __arm__ ; then
  cpu="arm"
elif check_define __hppa__ ; then
  cpu="hppa"
else
  cpu=`uname -m`
fi

ARCH=
# Normalise host CPU name and set ARCH.
# Note that this case should only have supported host CPUs, not guests.
case "$cpu" in
  ia64|ppc|ppc64|s390|s390x|sparc64)
    cpu="$cpu"
  ;;
  i386|i486|i586|i686|i86pc|BePC)
    cpu="i386"
  ;;
  x86_64|amd64)
    cpu="x86_64"
  ;;
  armv*b|armv*l|arm)
    cpu="arm"
  ;;
  hppa|parisc|parisc64)
    cpu="hppa"
  ;;
  mips*)
    cpu="mips"
  ;;
  sparc|sun4[cdmuv])
    cpu="sparc"
  ;;
  *)
    # This will result in either an error or falling back to TCI later
    ARCH=unknown
  ;;
esac
if test -z "$ARCH"; then
  ARCH="$cpu"
fi

# OS specific

case $targetos in
CYGWIN*)
  mingw32="yes"
  QEMU_CFLAGS="-mno-cygwin $QEMU_CFLAGS"
  audio_possible_drivers="winwave sdl"
  audio_drv_list="winwave"
;;
MINGW32*)
  mingw32="yes"
  audio_possible_drivers="winwave dsound sdl fmod"
  audio_drv_list="winwave"
;;
GNU/kFreeBSD)
  bsd="yes"
  audio_drv_list="oss"
  audio_possible_drivers="oss sdl esd pa"
;;
FreeBSD)
  bsd="yes"
  make="${MAKE-gmake}"
  audio_drv_list="oss"
  audio_possible_drivers="oss sdl esd pa"
  # needed for kinfo_getvmmap(3) in libutil.h
  LIBS="-lutil $LIBS"
;;
DragonFly)
  bsd="yes"
  make="${MAKE-gmake}"
  audio_drv_list="oss"
  audio_possible_drivers="oss sdl esd pa"
;;
NetBSD)
  bsd="yes"
  make="${MAKE-gmake}"
  audio_drv_list="oss"
  audio_possible_drivers="oss sdl esd"
  oss_lib="-lossaudio"
;;
OpenBSD)
  bsd="yes"
  make="${MAKE-gmake}"
  audio_drv_list="oss"
  audio_possible_drivers="oss sdl esd"
  oss_lib="-lossaudio"
;;
Darwin)
  bsd="yes"
  darwin="yes"
  if [ "$cpu" = "x86_64" ] ; then
    QEMU_CFLAGS="-arch x86_64 $QEMU_CFLAGS"
    LDFLAGS="-arch x86_64 $LDFLAGS"
  else
    QEMU_CFLAGS="-mdynamic-no-pic $QEMU_CFLAGS"
  fi
  cocoa="yes"
  audio_drv_list="coreaudio"
  audio_possible_drivers="coreaudio sdl fmod"
  LDFLAGS="-framework CoreFoundation -framework IOKit $LDFLAGS"
  libs_softmmu="-F/System/Library/Frameworks -framework Cocoa -framework IOKit $libs_softmmu"
  # Disable attempts to use ObjectiveC features in os/object.h since they
  # won't work when we're compiling with gcc as a C compiler.
  QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
;;
SunOS)
  solaris="yes"
  make="${MAKE-gmake}"
  install="${INSTALL-ginstall}"
  ld="gld"
  smbd="${SMBD-/usr/sfw/sbin/smbd}"
  needs_libsunmath="no"
  solarisrev=`uname -r | cut -f2 -d.`
  if [ "$cpu" = "i386" -o "$cpu" = "x86_64" ] ; then
    if test "$solarisrev" -le 9 ; then
      if test -f /opt/SUNWspro/prod/lib/libsunmath.so.1; then
        needs_libsunmath="yes"
        QEMU_CFLAGS="-I/opt/SUNWspro/prod/include/cc $QEMU_CFLAGS"
        LDFLAGS="-L/opt/SUNWspro/prod/lib -R/opt/SUNWspro/prod/lib $LDFLAGS"
        LIBS="-lsunmath $LIBS"
      else
        error_exit "QEMU will not link correctly on Solaris 8/X86 or 9/x86 without" \
            "libsunmath from the Sun Studio compilers tools, due to a lack of" \
            "C99 math features in libm.so in Solaris 8/x86 and Solaris 9/x86" \
            "Studio 11 can be downloaded from www.sun.com."
      fi
    fi
  fi
  if test -f /usr/include/sys/soundcard.h ; then
    audio_drv_list="oss"
  fi
  audio_possible_drivers="oss sdl"
# needed for CMSG_ macros in sys/socket.h
  QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
# needed for TIOCWIN* defines in termios.h
  QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
  QEMU_CFLAGS="-std=gnu99 $QEMU_CFLAGS"
  solarisnetlibs="-lsocket -lnsl -lresolv"
  LIBS="$solarisnetlibs $LIBS"
  libs_qga="$solarisnetlibs $libs_qga"
;;
AIX)
  aix="yes"
  make="${MAKE-gmake}"
;;
Haiku)
  haiku="yes"
  QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS $QEMU_CFLAGS"
  LIBS="-lposix_error_mapper -lnetwork $LIBS"
;;
*)
  audio_drv_list="oss"
  audio_possible_drivers="oss alsa sdl esd pa"
  linux="yes"
  linux_user="yes"
  usb="linux"
  kvm="yes"
  vhost_net="yes"
  if [ "$cpu" = "i386" -o "$cpu" = "x86_64" ] ; then
    audio_possible_drivers="$audio_possible_drivers fmod"
  fi
;;
esac

if [ "$bsd" = "yes" ] ; then
  if [ "$darwin" != "yes" ] ; then
    usb="bsd"
    bsd_user="yes"
  fi
fi

: ${make=${MAKE-make}}
: ${install=${INSTALL-install}}
: ${python=${PYTHON-python}}
: ${smbd=${SMBD-/usr/sbin/smbd}}

# Default objcc to clang if available, otherwise use CC
if has clang; then
  objcc=clang
else
  objcc="$cc"
fi

if test "$mingw32" = "yes" ; then
  EXESUF=".exe"
  QEMU_CFLAGS="-DWIN32_LEAN_AND_MEAN -DWINVER=0x501 $QEMU_CFLAGS"
  # enable C99/POSIX format strings (needs mingw32-runtime 3.15 or later)
  QEMU_CFLAGS="-D__USE_MINGW_ANSI_STDIO=1 $QEMU_CFLAGS"
  if test "$cpu" = "i386"; then
    # We need something better than i386 for __sync_val_compare_and_swap
    # and can expect that QEMU will only run on i686 or later.
    QEMU_CFLAGS="-march=i686 $QEMU_CFLAGS"
  fi
  LIBS="-lwinmm -lws2_32 -liphlpapi $LIBS"
cat > $TMPC << EOF
int main(void) { return 0; }
EOF
  if compile_prog "" "-liberty" ; then
    LIBS="-liberty $LIBS"
  fi
  prefix="c:/Program Files/QEMU"
  mandir="\${prefix}"
  datadir="\${prefix}"
  qemu_docdir="\${prefix}"
  bindir="\${prefix}"
  sysconfdir="\${prefix}"
  local_statedir="\${prefix}"
  confsuffix=""
  libs_qga="-lws2_32 -lwinmm -lpowrprof $libs_qga"
fi

werror=""

for opt do
  optarg=`expr "x$opt" : 'x[^=]*=\(.*\)'`
  case "$opt" in
  --help|-h) show_help=yes
  ;;
  --version|-V) exec cat $source_path/VERSION
  ;;
  --prefix=*) prefix="$optarg"
  ;;
  --interp-prefix=*) interp_prefix="$optarg"
  ;;
  --source-path=*)
  ;;
  --cross-prefix=*)
  ;;
  --cc=*)
  ;;
  --host-cc=*) host_cc="$optarg"
  ;;
  --objcc=*) objcc="$optarg"
  ;;
  --make=*) make="$optarg"
  ;;
  --install=*) install="$optarg"
  ;;
  --python=*) python="$optarg"
  ;;
  --gcov=*) gcov_tool="$optarg"
  ;;
  --smbd=*) smbd="$optarg"
  ;;
  --extra-cflags=*)
  ;;
  --extra-ldflags=*)
  ;;
  --enable-debug-info)
  ;;
  --disable-debug-info)
  ;;
  --cpu=*)
  ;;
  --target-list=*) target_list="$optarg"
  ;;
  --enable-trace-backend=*) trace_backend="$optarg"
  ;;
  --with-trace-file=*) trace_file="$optarg"
  ;;
  --enable-gprof) gprof="yes"
  ;;
  --enable-gcov) gcov="yes"
  ;;
  --static)
    static="yes"
    LDFLAGS="-static $LDFLAGS"
    QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
  ;;
  --mandir=*) mandir="$optarg"
  ;;
  --bindir=*) bindir="$optarg"
  ;;
  --libdir=*) libdir="$optarg"
  ;;
  --libexecdir=*) libexecdir="$optarg"
  ;;
  --includedir=*) includedir="$optarg"
  ;;
  --datadir=*) datadir="$optarg"
  ;;
  --with-confsuffix=*) confsuffix="$optarg"
  ;;
  --docdir=*) qemu_docdir="$optarg"
  ;;
  --sysconfdir=*) sysconfdir="$optarg"
  ;;
  --localstatedir=*) local_statedir="$optarg"
  ;;
  --sbindir=*|--sharedstatedir=*|\
  --oldincludedir=*|--datarootdir=*|--infodir=*|--localedir=*|\
  --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
    # These switches are silently ignored, for compatibility with
    # autoconf-generated configure scripts. This allows QEMU's
    # configure to be used by RPM and similar macros that set
    # lots of directory switches by default.
  ;;
  --with-system-pixman) pixman="system"
  ;;
  --without-system-pixman) pixman="internal"
  ;;
  --without-pixman) pixman="none"
  ;;
  --disable-sdl) sdl="no"
  ;;
  --enable-sdl) sdl="yes"
  ;;
  --disable-virtfs) virtfs="no"
  ;;
  --enable-virtfs) virtfs="yes"
  ;;
  --disable-vnc) vnc="no"
  ;;
  --enable-vnc) vnc="yes"
  ;;
  --fmod-lib=*) fmod_lib="$optarg"
  ;;
  --fmod-inc=*) fmod_inc="$optarg"
  ;;
  --oss-lib=*) oss_lib="$optarg"
  ;;
  --audio-card-list=*) audio_card_list=`echo "$optarg" | sed -e 's/,/ /g'`
  ;;
  --audio-drv-list=*) audio_drv_list="$optarg"
  ;;
  --block-drv-whitelist=*) block_drv_whitelist=`echo "$optarg" | sed -e 's/,/ /g'`
  ;;
  --enable-debug-tcg) debug_tcg="yes"
  ;;
  --disable-debug-tcg) debug_tcg="no"
  ;;
  --enable-debug)
      # Enable debugging options that aren't excessively noisy
      debug_tcg="yes"
      debug="yes"
      strip_opt="no"
  ;;
  --enable-sparse) sparse="yes"
  ;;
  --disable-sparse) sparse="no"
  ;;
  --disable-strip) strip_opt="no"
  ;;
  --disable-vnc-tls) vnc_tls="no"
  ;;
  --enable-vnc-tls) vnc_tls="yes"
  ;;
  --disable-vnc-sasl) vnc_sasl="no"
  ;;
  --enable-vnc-sasl) vnc_sasl="yes"
  ;;
  --disable-vnc-jpeg) vnc_jpeg="no"
  ;;
  --enable-vnc-jpeg) vnc_jpeg="yes"
  ;;
  --disable-vnc-png) vnc_png="no"
  ;;
  --enable-vnc-png) vnc_png="yes"
  ;;
  --disable-vnc-ws) vnc_ws="no"
  ;;
  --enable-vnc-ws) vnc_ws="yes"
  ;;
  --disable-slirp) slirp="no"
  ;;
  --disable-uuid) uuid="no"
  ;;
  --enable-uuid) uuid="yes"
  ;;
  --disable-vde) vde="no"
  ;;
  --enable-vde) vde="yes"
  ;;
  --disable-xen) xen="no"
  ;;
  --enable-xen) xen="yes"
  ;;
  --disable-xen-pci-passthrough) xen_pci_passthrough="no"
  ;;
  --enable-xen-pci-passthrough) xen_pci_passthrough="yes"
  ;;
  --disable-brlapi) brlapi="no"
  ;;
  --enable-brlapi) brlapi="yes"
  ;;
  --disable-bluez) bluez="no"
  ;;
  --enable-bluez) bluez="yes"
  ;;
  --disable-kvm) kvm="no"
  ;;
  --enable-kvm) kvm="yes"
  ;;
  --disable-tcg-interpreter) tcg_interpreter="no"
  ;;
  --enable-tcg-interpreter) tcg_interpreter="yes"
  ;;
  --disable-cap-ng)  cap_ng="no"
  ;;
  --enable-cap-ng) cap_ng="yes"
  ;;
  --disable-spice) spice="no"
  ;;
  --enable-spice) spice="yes"
  ;;
  --disable-libiscsi) libiscsi="no"
  ;;
  --enable-libiscsi) libiscsi="yes"
  ;;
  --enable-profiler) profiler="yes"
  ;;
  --disable-cocoa) cocoa="no"
  ;;
  --enable-cocoa)
      cocoa="yes" ;
      sdl="no" ;
      audio_drv_list="coreaudio `echo $audio_drv_list | sed s,coreaudio,,g`"
  ;;
  --disable-system) softmmu="no"
  ;;
  --enable-system) softmmu="yes"
  ;;
  --disable-user)
      linux_user="no" ;
      bsd_user="no" ;
  ;;
  --enable-user) ;;
  --disable-linux-user) linux_user="no"
  ;;
  --enable-linux-user) linux_user="yes"
  ;;
  --disable-bsd-user) bsd_user="no"
  ;;
  --enable-bsd-user) bsd_user="yes"
  ;;
  --enable-guest-base) guest_base="yes"
  ;;
  --disable-guest-base) guest_base="no"
  ;;
  --enable-pie) pie="yes"
  ;;
  --disable-pie) pie="no"
  ;;
  --enable-uname-release=*) uname_release="$optarg"
  ;;
  --enable-werror) werror="yes"
  ;;
  --disable-werror) werror="no"
  ;;
  --disable-curses) curses="no"
  ;;
  --enable-curses) curses="yes"
  ;;
  --disable-curl) curl="no"
  ;;
  --enable-curl) curl="yes"
  ;;
  --disable-fdt) fdt="no"
  ;;
  --enable-fdt) fdt="yes"
  ;;
  --disable-nptl) nptl="no"
  ;;
  --enable-nptl) nptl="yes"
  ;;
  --enable-mixemu) mixemu="yes"
  ;;
  --disable-linux-aio) linux_aio="no"
  ;;
  --enable-linux-aio) linux_aio="yes"
  ;;
  --disable-attr) attr="no"
  ;;
  --enable-attr) attr="yes"
  ;;
  --disable-blobs) blobs="no"
  ;;
  --with-pkgversion=*) pkgversion=" ($optarg)"
  ;;
  --with-coroutine=*) coroutine="$optarg"
  ;;
  --disable-docs) docs="no"
  ;;
  --enable-docs) docs="yes"
  ;;
  --disable-vhost-net) vhost_net="no"
  ;;
  --enable-vhost-net) vhost_net="yes"
  ;;
  --disable-glx) glx="no"
  ;;
  --enable-glx) glx="yes"
  ;;
  --disable-rbd) rbd="no"
  ;;
  --enable-rbd) rbd="yes"
  ;;
  --disable-xfsctl) xfs="no"
  ;;
  --enable-xfsctl) xfs="yes"
  ;;
  --disable-smartcard-nss) smartcard_nss="no"
  ;;
  --enable-smartcard-nss) smartcard_nss="yes"
  ;;
  --disable-usb-redir) usb_redir="no"
  ;;
  --enable-usb-redir) usb_redir="yes"
  ;;
  --disable-zlib-test) zlib="no"
  ;;
  --enable-guest-agent) guest_agent="yes"
  ;;
  --disable-guest-agent) guest_agent="no"
  ;;
  --enable-tools) want_tools="yes"
  ;;
  --disable-tools) want_tools="no"
  ;;
  --enable-seccomp) seccomp="yes"
  ;;
  --disable-seccomp) seccomp="no"
  ;;
  --disable-glusterfs) glusterfs="no"
  ;;
  --enable-glusterfs) glusterfs="yes"
  ;;
  --disable-virtio-blk-data-plane) virtio_blk_data_plane="no"
  ;;
  --enable-virtio-blk-data-plane) virtio_blk_data_plane="yes"
  ;;
  --disable-gtk) gtk="no"
  ;;
  --enable-gtk) gtk="yes"
  ;;
  --with-gtkabi=*) gtkabi="$optarg"
  ;;
  --enable-tpm) tpm="yes"
  ;;
  --disable-libssh2) libssh2="no"
  ;;
  --enable-libssh2) libssh2="yes"
  ;;
  *) echo "ERROR: unknown option $opt"; show_help="yes"
  ;;
  esac
done

case "$cpu" in
    sparc)
           LDFLAGS="-m32 $LDFLAGS"
           QEMU_CFLAGS="-m32 -mcpu=ultrasparc $QEMU_CFLAGS"
           ;;
    sparc64)
           LDFLAGS="-m64 $LDFLAGS"
           QEMU_CFLAGS="-m64 -mcpu=ultrasparc $QEMU_CFLAGS"
           ;;
    s390)
           QEMU_CFLAGS="-m31 -march=z990 $QEMU_CFLAGS"
           LDFLAGS="-m31 $LDFLAGS"
           ;;
    s390x)
           QEMU_CFLAGS="-m64 -march=z990 $QEMU_CFLAGS"
           LDFLAGS="-m64 $LDFLAGS"
           ;;
    i386)
           QEMU_CFLAGS="-m32 $QEMU_CFLAGS"
           LDFLAGS="-m32 $LDFLAGS"
           cc_i386='$(CC) -m32'
           ;;
    x86_64)
           QEMU_CFLAGS="-m64 $QEMU_CFLAGS"
           LDFLAGS="-m64 $LDFLAGS"
           cc_i386='$(CC) -m32'
           ;;
    # No special flags required for other host CPUs
esac

default_target_list=""

# these targets are portable
if [ "$softmmu" = "yes" ] ; then
    default_target_list="\
i386-softmmu \
x86_64-softmmu \
alpha-softmmu \
arm-softmmu \
cris-softmmu \
lm32-softmmu \
m68k-softmmu \
microblaze-softmmu \
microblazeel-softmmu \
mips-softmmu \
mipsel-softmmu \
mips64-softmmu \
mips64el-softmmu \
moxie-softmmu \
or32-softmmu \
ppc-softmmu \
ppcemb-softmmu \
ppc64-softmmu \
sh4-softmmu \
sh4eb-softmmu \
sparc-softmmu \
sparc64-softmmu \
s390x-softmmu \
xtensa-softmmu \
xtensaeb-softmmu \
unicore32-softmmu \
"
fi
# the following are Linux specific
if [ "$linux_user" = "yes" ] ; then
    default_target_list="${default_target_list}\
i386-linux-user \
x86_64-linux-user \
alpha-linux-user \
arm-linux-user \
armeb-linux-user \
cris-linux-user \
m68k-linux-user \
microblaze-linux-user \
microblazeel-linux-user \
mips-linux-user \
mipsel-linux-user \
mips64-linux-user \
mips64el-linux-user \
mipsn32-linux-user \
mipsn32el-linux-user \
or32-linux-user \
ppc-linux-user \
ppc64-linux-user \
ppc64abi32-linux-user \
sh4-linux-user \
sh4eb-linux-user \
sparc-linux-user \
sparc64-linux-user \
sparc32plus-linux-user \
unicore32-linux-user \
s390x-linux-user \
"
fi
# the following are BSD specific
if [ "$bsd_user" = "yes" ] ; then
    default_target_list="${default_target_list}\
i386-bsd-user \
x86_64-bsd-user \
sparc-bsd-user \
sparc64-bsd-user \
"
fi

if test x"$show_help" = x"yes" ; then
cat << EOF

Usage: configure [options]
Options: [defaults in brackets after descriptions]

EOF
echo "Standard options:"
echo "  --help                   print this message"
echo "  --prefix=PREFIX          install in PREFIX [$prefix]"
echo "  --interp-prefix=PREFIX   where to find shared libraries, etc."
echo "                           use %M for cpu name [$interp_prefix]"
echo "  --target-list=LIST       set target list (default: build everything)"
echo "Available targets: $default_target_list" | \
    fold -s -w 53 | sed -e 's/^/                           /'
echo ""
echo "Advanced options (experts only):"
echo "  --source-path=PATH       path of source code [$source_path]"
echo "  --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]"
echo "  --cc=CC                  use C compiler CC [$cc]"
echo "  --host-cc=CC             use C compiler CC [$host_cc] for code run at"
echo "                           build time"
echo "  --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]"
echo "  --extra-cflags=CFLAGS    append extra C compiler flags QEMU_CFLAGS"
echo "  --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS"
echo "  --make=MAKE              use specified make [$make]"
echo "  --install=INSTALL        use specified install [$install]"
echo "  --python=PYTHON          use specified python [$python]"
echo "  --smbd=SMBD              use specified smbd [$smbd]"
echo "  --static                 enable static build [$static]"
echo "  --mandir=PATH            install man pages in PATH"
echo "  --datadir=PATH           install firmware in PATH$confsuffix"
echo "  --docdir=PATH            install documentation in PATH$confsuffix"
echo "  --bindir=PATH            install binaries in PATH"
echo "  --libdir=PATH            install libraries in PATH"
echo "  --sysconfdir=PATH        install config in PATH$confsuffix"
echo "  --localstatedir=PATH     install local state in PATH"
echo "  --with-confsuffix=SUFFIX suffix for QEMU data inside datadir and sysconfdir [$confsuffix]"
echo "  --enable-debug-tcg       enable TCG debugging"
echo "  --disable-debug-tcg      disable TCG debugging (default)"
echo "  --enable-debug-info       enable debugging information (default)"
echo "  --disable-debug-info      disable debugging information"
echo "  --enable-debug           enable common debug build options"
echo "  --enable-sparse          enable sparse checker"
echo "  --disable-sparse         disable sparse checker (default)"
echo "  --disable-strip          disable stripping binaries"
echo "  --disable-werror         disable compilation abort on warning"
echo "  --disable-sdl            disable SDL"
echo "  --enable-sdl             enable SDL"
echo "  --disable-gtk            disable gtk UI"
echo "  --enable-gtk             enable gtk UI"
echo "  --disable-virtfs         disable VirtFS"
echo "  --enable-virtfs          enable VirtFS"
echo "  --disable-vnc            disable VNC"
echo "  --enable-vnc             enable VNC"
echo "  --disable-cocoa          disable Cocoa (Mac OS X only)"
echo "  --enable-cocoa           enable Cocoa (default on Mac OS X)"
echo "  --audio-drv-list=LIST    set audio drivers list:"
echo "                           Available drivers: $audio_possible_drivers"
echo "  --audio-card-list=LIST   set list of emulated audio cards [$audio_card_list]"
echo "                           Available cards: $audio_possible_cards"
echo "  --block-drv-whitelist=L  set block driver whitelist"
echo "                           (affects only QEMU, not qemu-img)"
echo "  --enable-mixemu          enable mixer emulation"
echo "  --disable-xen            disable xen backend driver support"
echo "  --enable-xen             enable xen backend driver support"
echo "  --disable-xen-pci-passthrough"
echo "  --enable-xen-pci-passthrough"
echo "  --disable-brlapi         disable BrlAPI"
echo "  --enable-brlapi          enable BrlAPI"
echo "  --disable-vnc-tls        disable TLS encryption for VNC server"
echo "  --enable-vnc-tls         enable TLS encryption for VNC server"
echo "  --disable-vnc-sasl       disable SASL encryption for VNC server"
echo "  --enable-vnc-sasl        enable SASL encryption for VNC server"
echo "  --disable-vnc-jpeg       disable JPEG lossy compression for VNC server"
echo "  --enable-vnc-jpeg        enable JPEG lossy compression for VNC server"
echo "  --disable-vnc-png        disable PNG compression for VNC server (default)"
echo "  --enable-vnc-png         enable PNG compression for VNC server"
echo "  --disable-vnc-ws         disable Websockets support for VNC server"
echo "  --enable-vnc-ws          enable Websockets support for VNC server"
echo "  --disable-curses         disable curses output"
echo "  --enable-curses          enable curses output"
echo "  --disable-curl           disable curl connectivity"
echo "  --enable-curl            enable curl connectivity"
echo "  --disable-fdt            disable fdt device tree"
echo "  --enable-fdt             enable fdt device tree"
echo "  --disable-bluez          disable bluez stack connectivity"
echo "  --enable-bluez           enable bluez stack connectivity"
echo "  --disable-slirp          disable SLIRP userspace network connectivity"
echo "  --disable-kvm            disable KVM acceleration support"
echo "  --enable-kvm             enable KVM acceleration support"
echo "  --enable-tcg-interpreter enable TCG with bytecode interpreter (TCI)"
echo "  --disable-nptl           disable usermode NPTL support"
echo "  --enable-nptl            enable usermode NPTL support"
echo "  --enable-system          enable all system emulation targets"
echo "  --disable-system         disable all system emulation targets"
echo "  --enable-user            enable supported user emulation targets"
echo "  --disable-user           disable all user emulation targets"
echo "  --enable-linux-user      enable all linux usermode emulation targets"
echo "  --disable-linux-user     disable all linux usermode emulation targets"
echo "  --enable-bsd-user        enable all BSD usermode emulation targets"
echo "  --disable-bsd-user       disable all BSD usermode emulation targets"
echo "  --enable-guest-base      enable GUEST_BASE support for usermode"
echo "                           emulation targets"
echo "  --disable-guest-base     disable GUEST_BASE support"
echo "  --enable-pie             build Position Independent Executables"
echo "  --disable-pie            do not build Position Independent Executables"
echo "  --fmod-lib               path to FMOD library"
echo "  --fmod-inc               path to FMOD includes"
echo "  --oss-lib                path to OSS library"
echo "  --enable-uname-release=R Return R for uname -r in usermode emulation"
echo "  --cpu=CPU                Build for host CPU [$cpu]"
echo "  --disable-uuid           disable uuid support"
echo "  --enable-uuid            enable uuid support"
echo "  --disable-vde            disable support for vde network"
echo "  --enable-vde             enable support for vde network"
echo "  --disable-linux-aio      disable Linux AIO support"
echo "  --enable-linux-aio       enable Linux AIO support"
echo "  --disable-cap-ng         disable libcap-ng support"
echo "  --enable-cap-ng          enable libcap-ng support"
echo "  --disable-attr           disables attr and xattr support"
echo "  --enable-attr            enable attr and xattr support"
echo "  --disable-blobs          disable installing provided firmware blobs"
echo "  --enable-docs            enable documentation build"
echo "  --disable-docs           disable documentation build"
echo "  --disable-vhost-net      disable vhost-net acceleration support"
echo "  --enable-vhost-net       enable vhost-net acceleration support"
echo "  --enable-trace-backend=B Set trace backend"
echo "                           Available backends:" $($python "$source_path"/scripts/tracetool.py --list-backends)
echo "  --with-trace-file=NAME   Full PATH,NAME of file to store traces"
echo "                           Default:trace-<pid>"
echo "  --disable-spice          disable spice"
echo "  --enable-spice           enable spice"
echo "  --enable-rbd             enable building the rados block device (rbd)"
echo "  --disable-libiscsi       disable iscsi support"
echo "  --enable-libiscsi        enable iscsi support"
echo "  --disable-smartcard-nss  disable smartcard nss support"
echo "  --enable-smartcard-nss   enable smartcard nss support"
echo "  --disable-usb-redir      disable usb network redirection support"
echo "  --enable-usb-redir       enable usb network redirection support"
echo "  --disable-guest-agent    disable building of the QEMU Guest Agent"
echo "  --enable-guest-agent     enable building of the QEMU Guest Agent"
echo "  --disable-seccomp        disable seccomp support"
echo "  --enable-seccomp         enables seccomp support"
echo "  --with-coroutine=BACKEND coroutine backend. Supported options:"
echo "                           gthread, ucontext, sigaltstack, windows"
echo "  --enable-glusterfs       enable GlusterFS backend"
echo "  --disable-glusterfs      disable GlusterFS backend"
echo "  --enable-gcov            enable test coverage analysis with gcov"
echo "  --gcov=GCOV              use specified gcov [$gcov_tool]"
echo "  --enable-tpm             enable TPM support"
echo "  --disable-libssh2        disable ssh block device support"
echo "  --enable-libssh2         enable ssh block device support"
echo ""
echo "NOTE: The object files are built at the place where configure is launched"
exit 1
fi

# Now we have handled --enable-tcg-interpreter and know we're not just
# printing the help message, bail out if the host CPU isn't supported.
if test "$ARCH" = "unknown"; then
    if test "$tcg_interpreter" = "yes" ; then
        echo "Unsupported CPU = $cpu, will use TCG with TCI (experimental)"
        ARCH=tci
    else
        error_exit "Unsupported CPU = $cpu, try --enable-tcg-interpreter"
    fi
fi

# check that the C compiler works.
cat > $TMPC <<EOF
int main(void) { return 0; }
EOF

if compile_object ; then
  : C compiler works ok
else
    error_exit "\"$cc\" either does not exist or does not work"
fi

# Consult white-list to determine whether to enable werror
# by default.  Only enable by default for git builds
z_version=`cut -f3 -d. $source_path/VERSION`

if test -z "$werror" ; then
    if test -d "$source_path/.git" -a \
        "$linux" = "yes" ; then
        werror="yes"
    else
        werror="no"
    fi
fi

gcc_flags="-Wold-style-declaration -Wold-style-definition -Wtype-limits"
gcc_flags="-Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers $gcc_flags"
gcc_flags="-Wmissing-include-dirs -Wempty-body -Wnested-externs $gcc_flags"
gcc_flags="-fstack-protector-all -Wendif-labels $gcc_flags"
gcc_flags="-Wno-initializer-overrides $gcc_flags"
# Note that we do not add -Werror to gcc_flags here, because that would
# enable it for all configure tests. If a configure test failed due
# to -Werror this would just silently disable some features,
# so it's too error prone.
cat > $TMPC << EOF
int main(void) { return 0; }
EOF
for flag in $gcc_flags; do
    # Use the positive sense of the flag when testing for -Wno-wombat
    # support (gcc will happily accept the -Wno- form of unknown
    # warning options).
    optflag="$(echo $flag | sed -e 's/^-Wno-/-W/')"
    if compile_prog "-Werror $optflag" "" ; then
	QEMU_CFLAGS="$QEMU_CFLAGS $flag"
    fi
done

# Workaround for http://gcc.gnu.org/PR55489.  Happens with -fPIE/-fPIC and
# large functions that use global variables.  The bug is in all releases of
# GCC, but it became particularly acute in 4.6.x and 4.7.x.  It is fixed in
# 4.7.3 and 4.8.0.  We should be able to delete this at the end of 2013.
cat > $TMPC << EOF
#if __GNUC__ == 4 && (__GNUC_MINOR__ == 6 || (__GNUC_MINOR__ == 7 && __GNUC_PATCHLEVEL__ <= 2))
int main(void) { return 0; }
#else
#error No bug in this compiler.
#endif
EOF
if compile_prog "-Werror -fno-gcse" "" ; then
  TRANSLATE_OPT_CFLAGS=-fno-gcse
fi

if test "$static" = "yes" ; then
  if test "$pie" = "yes" ; then
    error_exit "static and pie are mutually incompatible"
  else
    pie="no"
  fi
fi

if test "$pie" = ""; then
  case "$cpu-$targetos" in
    i386-Linux|x86_64-Linux|i386-OpenBSD|x86_64-OpenBSD)
      ;;
    *)
      pie="no"
      ;;
  esac
fi

if test "$pie" != "no" ; then
  cat > $TMPC << EOF

#ifdef __linux__
#  define THREAD __thread
#else
#  define THREAD
#endif

static THREAD int tls_var;

int main(void) { return tls_var; }

EOF
  if compile_prog "-fPIE -DPIE" "-pie"; then
    QEMU_CFLAGS="-fPIE -DPIE $QEMU_CFLAGS"
    LDFLAGS="-pie $LDFLAGS"
    pie="yes"
    if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
      LDFLAGS="-Wl,-z,relro -Wl,-z,now $LDFLAGS"
    fi
  else
    if test "$pie" = "yes"; then
      error_exit "PIE not available due to missing toolchain support"
    else
      echo "Disabling PIE due to missing toolchain support"
      pie="no"
    fi
  fi
fi

#
# Solaris specific configure tool chain decisions
#
if test "$solaris" = "yes" ; then
  if has $install; then
    :
  else
    error_exit "Solaris install program not found. Use --install=/usr/ucb/install or" \
        "install fileutils from www.blastwave.org using pkg-get -i fileutils" \
        "to get ginstall which is used by default (which lives in /opt/csw/bin)"
  fi
  if test "`path_of $install`" = "/usr/sbin/install" ; then
    error_exit "Solaris /usr/sbin/install is not an appropriate install program." \
        "try ginstall from the GNU fileutils available from www.blastwave.org" \
        "using pkg-get -i fileutils, or use --install=/usr/ucb/install"
  fi
  if has ar; then
    :
  else
    if test -f /usr/ccs/bin/ar ; then
      error_exit "No path includes ar" \
          "Add /usr/ccs/bin to your path and rerun configure"
    fi
    error_exit "No path includes ar"
  fi
fi

if ! has $python; then
  error_exit "Python not found. Use --python=/path/to/python"
fi

# Note that if the Python conditional here evaluates True we will exit
# with status 1 which is a shell 'false' value.
if ! "$python" -c 'import sys; sys.exit(sys.version_info < (2,4) or sys.version_info >= (3,))'; then
  error_exit "Cannot use '$python', Python 2.4 or later is required." \
      "Note that Python 3 or later is not yet supported." \
      "Use --python=/path/to/python to specify a supported Python."
fi

if test -z "${target_list+xxx}" ; then
    target_list="$default_target_list"
else
    target_list=`echo "$target_list" | sed -e 's/,/ /g'`
fi
# see if system emulation was really requested
case " $target_list " in
  *"-softmmu "*) softmmu=yes
  ;;
  *) softmmu=no
  ;;
esac

feature_not_found() {
  feature=$1

  error_exit "User requested feature $feature" \
      "configure was not able to find it"
}

if test -z "$cross_prefix" ; then

# ---
# big/little endian test
cat > $TMPC << EOF
#include <inttypes.h>
int main(void) {
        volatile uint32_t i=0x01234567;
        return (*((uint8_t*)(&i))) == 0x67;
}
EOF

if compile_prog "" "" ; then
$TMPE && bigendian="yes"
else
echo big/little test failed
fi

else

# if cross compiling, cannot launch a program, so make a static guess
case "$cpu" in
  arm)
    # ARM can be either way; ask the compiler which one we are
    if check_define __ARMEB__; then
      bigendian=yes
    fi
  ;;
  hppa|m68k|mips|mips64|ppc|ppc64|s390|s390x|sparc|sparc64)
    bigendian=yes
  ;;
esac

fi

##########################################
# pkg-config probe

if ! has "$pkg_config_exe"; then
  error_exit "pkg-config binary '$pkg_config_exe' not found"
fi

##########################################
# NPTL probe

if test "$nptl" != "no" ; then
  cat > $TMPC <<EOF
#include <sched.h>
#include <linux/futex.h>
int main(void) {
#if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
#error bork
#endif
  return 0;
}
EOF

  if compile_object ; then
    nptl=yes
  else
    if test "$nptl" = "yes" ; then
      feature_not_found "nptl"
    fi
    nptl=no
  fi
fi

##########################################
# zlib check

if test "$zlib" != "no" ; then
    cat > $TMPC << EOF
#include <zlib.h>
int main(void) { zlibVersion(); return 0; }
EOF
    if compile_prog "" "-lz" ; then
        :
    else
        error_exit "zlib check failed" \
            "Make sure to have the zlib libs and headers installed."
    fi
fi

##########################################
# libseccomp check

if test "$seccomp" != "no" ; then
    if $pkg_config --atleast-version=1.0.0 libseccomp --modversion >/dev/null 2>&1; then
        libs_softmmu="$libs_softmmu `$pkg_config --libs libseccomp`"
	seccomp="yes"
    else
	if test "$seccomp" = "yes"; then
            feature_not_found "libseccomp"
	fi
	seccomp="no"
    fi
fi
##########################################
# xen probe

if test "$xen" != "no" ; then
  xen_libs="-lxenstore -lxenctrl -lxenguest"

  # First we test whether Xen headers and libraries are available.
  # If no, we are done and there is no Xen support.
  # If yes, more tests are run to detect the Xen version.

  # Xen (any)
  cat > $TMPC <<EOF
#include <xenctrl.h>
int main(void) {
  return 0;
}
EOF
  if ! compile_prog "" "$xen_libs" ; then
    # Xen not found
    if test "$xen" = "yes" ; then
      feature_not_found "xen"
    fi
    xen=no

  # Xen unstable
  elif
      cat > $TMPC <<EOF &&
#include <xenctrl.h>
#include <xenstore.h>
#include <stdint.h>
#include <xen/hvm/hvm_info_table.h>
#if !defined(HVM_MAX_VCPUS)
# error HVM_MAX_VCPUS not defined
#endif
int main(void) {
  xc_interface *xc;
  xs_daemon_open();
  xc = xc_interface_open(0, 0, 0);
  xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
  xc_gnttab_open(NULL, 0);
  xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
  xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
  return 0;
}
EOF
      compile_prog "" "$xen_libs"
    then
    xen_ctrl_version=420
    xen=yes

  elif
      cat > $TMPC <<EOF &&
#include <xenctrl.h>
#include <xs.h>
#include <stdint.h>
#include <xen/hvm/hvm_info_table.h>
#if !defined(HVM_MAX_VCPUS)
# error HVM_MAX_VCPUS not defined
#endif
int main(void) {
  xs_daemon_open();
  xc_interface_open(0, 0, 0);
  xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
  xc_gnttab_open(NULL, 0);
  xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
  return 0;
}
EOF
      compile_prog "" "$xen_libs"
    then
    xen_ctrl_version=410
    xen=yes

  # Xen 4.0.0
  elif
      cat > $TMPC <<EOF &&
#include <xenctrl.h>
#include <xs.h>
#include <stdint.h>
#include <xen/hvm/hvm_info_table.h>
#if !defined(HVM_MAX_VCPUS)
# error HVM_MAX_VCPUS not defined
#endif
int main(void) {
  struct xen_add_to_physmap xatp = {
    .domid = 0, .space = XENMAPSPACE_gmfn, .idx = 0, .gpfn = 0,
  };
  xs_daemon_open();
  xc_interface_open();
  xc_gnttab_open();
  xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
  xc_memory_op(0, XENMEM_add_to_physmap, &xatp);
  return 0;
}
EOF
      compile_prog "" "$xen_libs"
    then
    xen_ctrl_version=400
    xen=yes

  # Xen 3.4.0
  elif
      cat > $TMPC <<EOF &&
#include <xenctrl.h>
#include <xs.h>
int main(void) {
  struct xen_add_to_physmap xatp = {
    .domid = 0, .space = XENMAPSPACE_gmfn, .idx = 0, .gpfn = 0,
  };
  xs_daemon_open();
  xc_interface_open();
  xc_gnttab_open();
  xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
  xc_memory_op(0, XENMEM_add_to_physmap, &xatp);
  return 0;
}
EOF
      compile_prog "" "$xen_libs"
    then
    xen_ctrl_version=340
    xen=yes

  # Xen 3.3.0
  elif
      cat > $TMPC <<EOF &&
#include <xenctrl.h>
#include <xs.h>
int main(void) {
  xs_daemon_open();
  xc_interface_open();
  xc_gnttab_open();
  xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
  return 0;
}
EOF
      compile_prog "" "$xen_libs"
    then
    xen_ctrl_version=330
    xen=yes

  # Xen version unsupported
  else
    if test "$xen" = "yes" ; then
      feature_not_found "xen (unsupported version)"
    fi
    xen=no
  fi

  if test "$xen" = yes; then
    libs_softmmu="$xen_libs $libs_softmmu"
  fi
fi

if test "$xen_pci_passthrough" != "no"; then
  if test "$xen" = "yes" && test "$linux" = "yes" &&
    test "$xen_ctrl_version" -ge 340; then
    xen_pci_passthrough=yes
  else
    if test "$xen_pci_passthrough" = "yes"; then
      if test "$xen_ctrl_version" -lt 340; then
        error_exit "User requested feature Xen PCI Passthrough" \
            "This feature does not work with Xen 3.3"
      fi
      error_exit "User requested feature Xen PCI Passthrough" \
          " but this feature requires /sys from Linux"
    fi
    xen_pci_passthrough=no
  fi
fi

##########################################
# libtool probe

if ! has $libtool; then
    libtool=
fi

##########################################
# Sparse probe
if test "$sparse" != "no" ; then
  if has cgcc; then
    sparse=yes
  else
    if test "$sparse" = "yes" ; then
      feature_not_found "sparse"
    fi
    sparse=no
  fi
fi

##########################################
# GTK probe

if test "$gtk" != "no"; then
    gtkpackage="gtk+-$gtkabi"
    if test "$gtkabi" = "3.0" ; then
      gtkversion="3.0.0"
      vtepackage="vte-2.90"
      vteversion="0.32.0"
    else
      gtkversion="2.18.0"
      vtepackage="vte"
      vteversion="0.24.0"
    fi
    if $pkg_config --exists "$gtkpackage >= $gtkversion" && \
       $pkg_config --exists "$vtepackage >= $vteversion"; then
	gtk_cflags=`$pkg_config --cflags $gtkpackage 2>/dev/null`
	gtk_libs=`$pkg_config --libs $gtkpackage 2>/dev/null`
	vte_cflags=`$pkg_config --cflags $vtepackage 2>/dev/null`
	vte_libs=`$pkg_config --libs $vtepackage 2>/dev/null`
	libs_softmmu="$gtk_libs $vte_libs $libs_softmmu"
	gtk="yes"
    else
	if test "$gtk" = "yes" ; then
	    feature_not_found "gtk"
	fi
	gtk="no"
    fi
fi

##########################################
# SDL probe

# Look for sdl configuration program (pkg-config or sdl-config).  Try
# sdl-config even without cross prefix, and favour pkg-config over sdl-config.
if test "`basename $sdl_config`" != sdl-config && ! has ${sdl_config}; then
  sdl_config=sdl-config
fi

if $pkg_config sdl --modversion >/dev/null 2>&1; then
  sdlconfig="$pkg_config sdl"
  _sdlversion=`$sdlconfig --modversion 2>/dev/null | sed 's/[^0-9]//g'`
elif has ${sdl_config}; then
  sdlconfig="$sdl_config"
  _sdlversion=`$sdlconfig --version | sed 's/[^0-9]//g'`
else
  if test "$sdl" = "yes" ; then
    feature_not_found "sdl"
  fi
  sdl=no
fi
if test -n "$cross_prefix" && test "$(basename "$sdlconfig")" = sdl-config; then
  echo warning: using "\"$sdlconfig\"" to detect cross-compiled sdl >&2
fi

sdl_too_old=no
if test "$sdl" != "no" ; then
  cat > $TMPC << EOF
#include <SDL.h>
#undef main /* We don't want SDL to override our main() */
int main( void ) { return SDL_Init (SDL_INIT_VIDEO); }
EOF
  sdl_cflags=`$sdlconfig --cflags 2> /dev/null`
  if test "$static" = "yes" ; then
    sdl_libs=`$sdlconfig --static-libs 2>/dev/null`
  else
    sdl_libs=`$sdlconfig --libs 2> /dev/null`
  fi
  if compile_prog "$sdl_cflags" "$sdl_libs" ; then
    if test "$_sdlversion" -lt 121 ; then
      sdl_too_old=yes
    else
      if test "$cocoa" = "no" ; then
        sdl=yes
      fi
    fi

    # static link with sdl ? (note: sdl.pc's --static --libs is broken)
    if test "$sdl" = "yes" -a "$static" = "yes" ; then
      if test $? = 0 && echo $sdl_libs | grep -- -laa > /dev/null; then
         sdl_libs="$sdl_libs `aalib-config --static-libs 2>/dev/null`"
         sdl_cflags="$sdl_cflags `aalib-config --cflags 2>/dev/null`"
      fi
      if compile_prog "$sdl_cflags" "$sdl_libs" ; then
	:
      else
        sdl=no
      fi
    fi # static link
  else # sdl not found
    if test "$sdl" = "yes" ; then
      feature_not_found "sdl"
    fi
    sdl=no
  fi # sdl compile test
fi

if test "$sdl" = "yes" ; then
  cat > $TMPC <<EOF
#include <SDL.h>
#if defined(SDL_VIDEO_DRIVER_X11)
#include <X11/XKBlib.h>
#else
#error No x11 support
#endif
int main(void) { return 0; }
EOF
  if compile_prog "$sdl_cflags" "$sdl_libs" ; then
    sdl_libs="$sdl_libs -lX11"
  fi
  libs_softmmu="$sdl_libs $libs_softmmu"
fi

##########################################
# VNC TLS/WS detection
if test "$vnc" = "yes" -a \( "$vnc_tls" != "no" -o "$vnc_ws" != "no" \) ; then
  cat > $TMPC <<EOF
#include <gnutls/gnutls.h>
int main(void) { gnutls_session_t s; gnutls_init(&s, GNUTLS_SERVER); return 0; }
EOF
  vnc_tls_cflags=`$pkg_config --cflags gnutls 2> /dev/null`
  vnc_tls_libs=`$pkg_config --libs gnutls 2> /dev/null`
  if compile_prog "$vnc_tls_cflags" "$vnc_tls_libs" ; then
    if test "$vnc_tls" != "no" ; then
      vnc_tls=yes
    fi
    if test "$vnc_ws" != "no" ; then
      vnc_ws=yes
    fi
    libs_softmmu="$vnc_tls_libs $libs_softmmu"
    QEMU_CFLAGS="$QEMU_CFLAGS $vnc_tls_cflags"
  else
    if test "$vnc_tls" = "yes" ; then
      feature_not_found "vnc-tls"
    fi
    if test "$vnc_ws" = "yes" ; then
      feature_not_found "vnc-ws"
    fi
    vnc_tls=no
    vnc_ws=no
  fi
fi

##########################################
# VNC SASL detection
if test "$vnc" = "yes" -a "$vnc_sasl" != "no" ; then
  cat > $TMPC <<EOF
#include <sasl/sasl.h>
#include <stdio.h>
int main(void) { sasl_server_init(NULL, "qemu"); return 0; }
EOF
  # Assuming Cyrus-SASL installed in /usr prefix
  vnc_sasl_cflags=""
  vnc_sasl_libs="-lsasl2"
  if compile_prog "$vnc_sasl_cflags" "$vnc_sasl_libs" ; then
    vnc_sasl=yes
    libs_softmmu="$vnc_sasl_libs $libs_softmmu"
    QEMU_CFLAGS="$QEMU_CFLAGS $vnc_sasl_cflags"
  else
    if test "$vnc_sasl" = "yes" ; then
      feature_not_found "vnc-sasl"
    fi
    vnc_sasl=no
  fi
fi

##########################################
# VNC JPEG detection
if test "$vnc" = "yes" -a "$vnc_jpeg" != "no" ; then
cat > $TMPC <<EOF
#include <stdio.h>
#include <jpeglib.h>
int main(void) { struct jpeg_compress_struct s; jpeg_create_compress(&s); return 0; }
EOF
    vnc_jpeg_cflags=""
    vnc_jpeg_libs="-ljpeg"
  if compile_prog "$vnc_jpeg_cflags" "$vnc_jpeg_libs" ; then
    vnc_jpeg=yes
    libs_softmmu="$vnc_jpeg_libs $libs_softmmu"
    QEMU_CFLAGS="$QEMU_CFLAGS $vnc_jpeg_cflags"
  else
    if test "$vnc_jpeg" = "yes" ; then
      feature_not_found "vnc-jpeg"
    fi
    vnc_jpeg=no
  fi
fi

##########################################
# VNC PNG detection
if test "$vnc" = "yes" -a "$vnc_png" != "no" ; then
cat > $TMPC <<EOF
//#include <stdio.h>
#include <png.h>
#include <stddef.h>
int main(void) {
    png_structp png_ptr;
    png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
    return png_ptr != 0;
}
EOF
  if $pkg_config libpng --modversion >/dev/null 2>&1; then
    vnc_png_cflags=`$pkg_config libpng --cflags 2> /dev/null`
    vnc_png_libs=`$pkg_config libpng --libs 2> /dev/null`
  else
    vnc_png_cflags=""
    vnc_png_libs="-lpng"
  fi
  if compile_prog "$vnc_png_cflags" "$vnc_png_libs" ; then
    vnc_png=yes
    libs_softmmu="$vnc_png_libs $libs_softmmu"
    QEMU_CFLAGS="$QEMU_CFLAGS $vnc_png_cflags"
  else
    if test "$vnc_png" = "yes" ; then
      feature_not_found "vnc-png"
    fi
    vnc_png=no
  fi
fi

##########################################
# fnmatch() probe, used for ACL routines
fnmatch="no"
cat > $TMPC << EOF
#include <fnmatch.h>
int main(void)
{
    fnmatch("foo", "foo", 0);
    return 0;
}
EOF
if compile_prog "" "" ; then
   fnmatch="yes"
fi

##########################################
# uuid_generate() probe, used for vdi block driver
if test "$uuid" != "no" ; then
  uuid_libs="-luuid"
  cat > $TMPC << EOF
#include <uuid/uuid.h>
int main(void)
{
    uuid_t my_uuid;
    uuid_generate(my_uuid);
    return 0;
}
EOF
  if compile_prog "" "$uuid_libs" ; then
    uuid="yes"
    libs_softmmu="$uuid_libs $libs_softmmu"
    libs_tools="$uuid_libs $libs_tools"
  else
    if test "$uuid" = "yes" ; then
      feature_not_found "uuid"
    fi
    uuid=no
  fi
fi

##########################################
# xfsctl() probe, used for raw-posix
if test "$xfs" != "no" ; then
  cat > $TMPC << EOF
#include <stddef.h>  /* NULL */
#include <xfs/xfs.h>
int main(void)
{
    xfsctl(NULL, 0, 0, NULL);
    return 0;
}
EOF
  if compile_prog "" "" ; then
    xfs="yes"
  else
    if test "$xfs" = "yes" ; then
      feature_not_found "xfs"
    fi
    xfs=no
  fi
fi

##########################################
# vde libraries probe
if test "$vde" != "no" ; then
  vde_libs="-lvdeplug"
  cat > $TMPC << EOF
#include <libvdeplug.h>
int main(void)
{
    struct vde_open_args a = {0, 0, 0};
    char s[] = "";
    vde_open(s, s, &a);
    return 0;
}
EOF
  if compile_prog "" "$vde_libs" ; then
    vde=yes
    libs_softmmu="$vde_libs $libs_softmmu"
    libs_tools="$vde_libs $libs_tools"
  else
    if test "$vde" = "yes" ; then
      feature_not_found "vde"
    fi
    vde=no
  fi
fi

##########################################
# libcap-ng library probe
if test "$cap_ng" != "no" ; then
  cap_libs="-lcap-ng"
  cat > $TMPC << EOF
#include <cap-ng.h>
int main(void)
{
    capng_capability_to_name(CAPNG_EFFECTIVE);
    return 0;
}
EOF
  if compile_prog "" "$cap_libs" ; then
    cap_ng=yes
    libs_tools="$cap_libs $libs_tools"
  else
    if test "$cap_ng" = "yes" ; then
      feature_not_found "cap_ng"
    fi
    cap_ng=no
  fi
fi

##########################################
# Sound support libraries probe

audio_drv_probe()
{
    drv=$1
    hdr=$2
    lib=$3
    exp=$4
    cfl=$5
        cat > $TMPC << EOF
#include <$hdr>
int main(void) { $exp }
EOF
    if compile_prog "$cfl" "$lib" ; then
        :
    else
        error_exit "$drv check failed" \
            "Make sure to have the $drv libs and headers installed."
    fi
}

audio_drv_list=`echo "$audio_drv_list" | sed -e 's/,/ /g'`
for drv in $audio_drv_list; do
    case $drv in
    alsa)
    audio_drv_probe $drv alsa/asoundlib.h -lasound \
        "return snd_pcm_close((snd_pcm_t *)0);"
    libs_softmmu="-lasound $libs_softmmu"
    ;;

    fmod)
    if test -z $fmod_lib || test -z $fmod_inc; then
        error_exit "You must specify path to FMOD library and headers" \
            "Example: --fmod-inc=/path/include/fmod --fmod-lib=/path/lib/libfmod-3.74.so"
    fi
    audio_drv_probe $drv fmod.h $fmod_lib "return FSOUND_GetVersion();" "-I $fmod_inc"
    libs_softmmu="$fmod_lib $libs_softmmu"
    ;;

    esd)
    audio_drv_probe $drv esd.h -lesd 'return esd_play_stream(0, 0, "", 0);'
    libs_softmmu="-lesd $libs_softmmu"
    audio_pt_int="yes"
    ;;

    pa)
    audio_drv_probe $drv pulse/mainloop.h "-lpulse" \
        "pa_mainloop *m = 0; pa_mainloop_free (m); return 0;"
    libs_softmmu="-lpulse $libs_softmmu"
    audio_pt_int="yes"
    ;;

    coreaudio)
      libs_softmmu="-framework CoreAudio $libs_softmmu"
    ;;

    dsound)
      libs_softmmu="-lole32 -ldxguid $libs_softmmu"
      audio_win_int="yes"
    ;;

    oss)
      libs_softmmu="$oss_lib $libs_softmmu"
    ;;

    sdl|wav)
    # XXX: Probes for CoreAudio, DirectSound, SDL(?)
    ;;

    winwave)
      libs_softmmu="-lwinmm $libs_softmmu"
      audio_win_int="yes"
    ;;

    *)
    echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
        error_exit "Unknown driver '$drv' selected" \
            "Possible drivers are: $audio_possible_drivers"
    }
    ;;
    esac
done

##########################################
# BrlAPI probe

if test "$brlapi" != "no" ; then
  brlapi_libs="-lbrlapi"
  cat > $TMPC << EOF
#include <brlapi.h>
#include <stddef.h>
int main( void ) { return brlapi__openConnection (NULL, NULL, NULL); }
EOF
  if compile_prog "" "$brlapi_libs" ; then
    brlapi=yes
    libs_softmmu="$brlapi_libs $libs_softmmu"
  else
    if test "$brlapi" = "yes" ; then
      feature_not_found "brlapi"
    fi
    brlapi=no
  fi
fi

##########################################
# curses probe
if test "$mingw32" = "yes" ; then
    curses_list="-lpdcurses"
else
    curses_list="-lncurses:-lcurses:$($pkg_config --libs ncurses 2>/dev/null)"
fi

if test "$curses" != "no" ; then
  curses_found=no
  cat > $TMPC << EOF
#include <curses.h>
int main(void) {
  const char *s = curses_version();
  resize_term(0, 0);
  return s != 0;
}
EOF
  IFS=:
  for curses_lib in $curses_list; do
    unset IFS
    if compile_prog "" "$curses_lib" ; then
      curses_found=yes
      libs_softmmu="$curses_lib $libs_softmmu"
      break
    fi
  done
  unset IFS
  if test "$curses_found" = "yes" ; then
    curses=yes
  else
    if test "$curses" = "yes" ; then
      feature_not_found "curses"
    fi
    curses=no
  fi
fi

##########################################
# curl probe

if $pkg_config libcurl --modversion >/dev/null 2>&1; then
  curlconfig="$pkg_config libcurl"
else
  curlconfig=curl-config
fi

if test "$curl" != "no" ; then
  cat > $TMPC << EOF
#include <curl/curl.h>
int main(void) { curl_easy_init(); curl_multi_setopt(0, 0, 0); return 0; }
EOF
  curl_cflags=`$curlconfig --cflags 2>/dev/null`
  curl_libs=`$curlconfig --libs 2>/dev/null`
  if compile_prog "$curl_cflags" "$curl_libs" ; then
    curl=yes
    libs_tools="$curl_libs $libs_tools"
    libs_softmmu="$curl_libs $libs_softmmu"
  else
    if test "$curl" = "yes" ; then
      feature_not_found "curl"
    fi
    curl=no
  fi
fi # test "$curl"

##########################################
# bluez support probe
if test "$bluez" != "no" ; then
  cat > $TMPC << EOF
#include <bluetooth/bluetooth.h>
int main(void) { return bt_error(0); }
EOF
  bluez_cflags=`$pkg_config --cflags bluez 2> /dev/null`
  bluez_libs=`$pkg_config --libs bluez 2> /dev/null`
  if compile_prog "$bluez_cflags" "$bluez_libs" ; then
    bluez=yes
    libs_softmmu="$bluez_libs $libs_softmmu"
  else
    if test "$bluez" = "yes" ; then
      feature_not_found "bluez"
    fi
    bluez="no"
  fi
fi

##########################################
# glib support probe

if test "$mingw32" = yes; then
    # g_poll is required in order to integrate with the glib main loop.
    glib_req_ver=2.20
else
    glib_req_ver=2.12
fi
if $pkg_config --atleast-version=$glib_req_ver gthread-2.0 > /dev/null 2>&1
then
    glib_cflags=`$pkg_config --cflags gthread-2.0 2>/dev/null`
    glib_libs=`$pkg_config --libs gthread-2.0 2>/dev/null`
    LIBS="$glib_libs $LIBS"
    libs_qga="$glib_libs $libs_qga"
else
    error_exit "glib-$glib_req_ver required to compile QEMU"
fi

##########################################
# pixman support probe

if test "$pixman" = ""; then
  if test "$want_tools" = "no" -a "$softmmu" = "no"; then
    pixman="none"
  elif $pkg_config pixman-1 > /dev/null 2>&1; then
    pixman="system"
  else
    pixman="internal"
  fi
fi
if test "$pixman" = "none"; then
  if test "$want_tools" != "no" -o "$softmmu" != "no"; then
    error_exit "pixman disabled but system emulation or tools build" \
        "enabled.  You can turn off pixman only if you also" \
        "disable all system emulation targets and the tools" \
        "build with '--disable-tools --disable-system'."
  fi
  pixman_cflags=
  pixman_libs=
elif test "$pixman" = "system"; then
  pixman_cflags=`$pkg_config --cflags pixman-1 2>/dev/null`
  pixman_libs=`$pkg_config --libs pixman-1 2>/dev/null`
else
  if test ! -d ${source_path}/pixman/pixman; then
    error_exit "pixman not present. Your options:" \
        "  (1) Preferred: Install the pixman devel package (any recent" \
        "      distro should have packages as Xorg needs pixman too)." \
        "  (2) Fetch the pixman submodule, using:" \
        "      git submodule update --init pixman"
  fi
  mkdir -p pixman/pixman
  pixman_cflags="-I\$(SRC_PATH)/pixman/pixman -I\$(BUILD_DIR)/pixman/pixman"
  pixman_libs="-L\$(BUILD_DIR)/pixman/pixman/.libs -lpixman-1"
fi

##########################################
# libcap probe

if test "$cap" != "no" ; then
  cat > $TMPC <<EOF
#include <stdio.h>
#include <sys/capability.h>
int main(void) { cap_t caps; caps = cap_init(); return caps != NULL; }
EOF
  if compile_prog "" "-lcap" ; then
    cap=yes
  else
    cap=no
  fi
fi

##########################################
# pthread probe
PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"

pthread=no
cat > $TMPC << EOF
#include <pthread.h>
static void *f(void *p) { return NULL; }
int main(void) {
  pthread_t thread;
  pthread_create(&thread, 0, f, 0);
  return 0;
}
EOF
if compile_prog "" "" ; then
  pthread=yes
else
  for pthread_lib in $PTHREADLIBS_LIST; do
    if compile_prog "" "$pthread_lib" ; then
      pthread=yes
      found=no
      for lib_entry in $LIBS; do
        if test "$lib_entry" = "$pthread_lib"; then
          found=yes
          break
        fi
      done
      if test "$found" = "no"; then
        LIBS="$pthread_lib $LIBS"
      fi
      break
    fi
  done
fi

if test "$mingw32" != yes -a "$pthread" = no; then
  error_exit "pthread check failed" \
      "Make sure to have the pthread libs and headers installed."
fi

##########################################
# rbd probe
if test "$rbd" != "no" ; then
  cat > $TMPC <<EOF
#include <stdio.h>
#include <rbd/librbd.h>
int main(void) {
    rados_t cluster;
    rados_create(&cluster, NULL);
    return 0;
}
EOF
  rbd_libs="-lrbd -lrados"
  if compile_prog "" "$rbd_libs" ; then
    rbd=yes
    libs_tools="$rbd_libs $libs_tools"
    libs_softmmu="$rbd_libs $libs_softmmu"
  else
    if test "$rbd" = "yes" ; then
      feature_not_found "rados block device"
    fi
    rbd=no
  fi
fi

##########################################
# libssh2 probe
if test "$libssh2" != "no" ; then
  cat > $TMPC <<EOF
#include <stdio.h>
#include <libssh2.h>
#include <libssh2_sftp.h>
int main(void) {
    LIBSSH2_SESSION *session;
    session = libssh2_session_init ();
    (void) libssh2_sftp_init (session);
    return 0;
}
EOF

  if $pkg_config libssh2 --modversion >/dev/null 2>&1; then
    libssh2_cflags=`$pkg_config libssh2 --cflags`
    libssh2_libs=`$pkg_config libssh2 --libs`
  else
    libssh2_cflags=
    libssh2_libs="-lssh2"
  fi

  if compile_prog "$libssh2_cflags" "$libssh2_libs" ; then
    libssh2=yes
    libs_tools="$libssh2_libs $libs_tools"
    libs_softmmu="$libssh2_libs $libs_softmmu"
    QEMU_CFLAGS="$QEMU_CFLAGS $libssh2_cflags"
  else
    if test "$libssh2" = "yes" ; then
      feature_not_found "libssh2"
    fi
    libssh2=no
  fi
fi

##########################################
# libssh2_sftp_fsync probe

if test "$libssh2" = "yes"; then
  cat > $TMPC <<EOF
#include <stdio.h>
#include <libssh2.h>
#include <libssh2_sftp.h>
int main(void) {
    LIBSSH2_SESSION *session;
    LIBSSH2_SFTP *sftp;
    LIBSSH2_SFTP_HANDLE *sftp_handle;
    session = libssh2_session_init ();
    sftp = libssh2_sftp_init (session);
    sftp_handle = libssh2_sftp_open (sftp, "/", 0, 0);
    libssh2_sftp_fsync (sftp_handle);
    return 0;
}
EOF
  # libssh2_cflags/libssh2_libs defined in previous test.
  if compile_prog "$libssh2_cflags" "$libssh2_libs" ; then
    QEMU_CFLAGS="-DHAS_LIBSSH2_SFTP_FSYNC $QEMU_CFLAGS"
  fi
fi

##########################################
# linux-aio probe

if test "$linux_aio" != "no" ; then
  cat > $TMPC <<EOF
#include <libaio.h>
#include <sys/eventfd.h>
#include <stddef.h>
int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
EOF
  if compile_prog "" "-laio" ; then
    linux_aio=yes
    libs_softmmu="$libs_softmmu -laio"
    libs_tools="$libs_tools -laio"
  else
    if test "$linux_aio" = "yes" ; then
      feature_not_found "linux AIO"
    fi
    linux_aio=no
  fi
fi

##########################################
# adjust virtio-blk-data-plane based on linux-aio

if test "$virtio_blk_data_plane" = "yes" -a \
	"$linux_aio" != "yes" ; then
  error_exit "virtio-blk-data-plane requires Linux AIO, please try --enable-linux-aio"
elif test -z "$virtio_blk_data_plane" ; then
  virtio_blk_data_plane=$linux_aio
fi

##########################################
# attr probe

if test "$attr" != "no" ; then
  cat > $TMPC <<EOF
#include <stdio.h>
#include <sys/types.h>
#ifdef CONFIG_LIBATTR
#include <attr/xattr.h>
#else
#include <sys/xattr.h>
#endif
int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }
EOF
  if compile_prog "" "" ; then
    attr=yes
  # Older distros have <attr/xattr.h>, and need -lattr:
  elif compile_prog "-DCONFIG_LIBATTR" "-lattr" ; then
    attr=yes
    LIBS="-lattr $LIBS"
    libattr=yes
  else
    if test "$attr" = "yes" ; then
      feature_not_found "ATTR"
    fi
    attr=no
  fi
fi

##########################################
# iovec probe
cat > $TMPC <<EOF
#include <sys/types.h>
#include <sys/uio.h>
#include <unistd.h>
int main(void) { return sizeof(struct iovec); }
EOF
iovec=no
if compile_prog "" "" ; then
  iovec=yes
fi

##########################################
# preadv probe
cat > $TMPC <<EOF
#include <sys/types.h>
#include <sys/uio.h>
#include <unistd.h>
int main(void) { return preadv(0, 0, 0, 0); }
EOF
preadv=no
if compile_prog "" "" ; then
  preadv=yes
fi

##########################################
# fdt probe
if test "$fdt" != "no" ; then
  fdt_libs="-lfdt"
  cat > $TMPC << EOF
int main(void) { return 0; }
EOF
  if compile_prog "" "$fdt_libs" ; then
    fdt=yes
    libs_softmmu="$libs_softmmu $fdt_libs"
  else
    if test "$fdt" = "yes" ; then
      feature_not_found "fdt"
    fi
    fdt_libs=
    fdt=no
  fi
fi

##########################################
# GLX probe, used by milkymist-tmu2
if test "$glx" != "no" ; then
  glx_libs="-lGL -lX11"
  cat > $TMPC << EOF
#include <X11/Xlib.h>
#include <GL/gl.h>
#include <GL/glx.h>
int main(void) { glBegin(0); glXQueryVersion(0,0,0); return 0; }
EOF
  if compile_prog "" "-lGL -lX11" ; then
    glx=yes
  else
    if test "$glx" = "yes" ; then
      feature_not_found "glx"
    fi
    glx_libs=
    glx=no
  fi
fi

##########################################
# glusterfs probe
if test "$glusterfs" != "no" ; then
  cat > $TMPC <<EOF
#include <glusterfs/api/glfs.h>
int main(void) {
    (void) glfs_new("volume");
    return 0;
}
EOF
  glusterfs_libs="-lgfapi -lgfrpc -lgfxdr"
  if compile_prog "" "$glusterfs_libs" ; then
    glusterfs=yes
    libs_tools="$glusterfs_libs $libs_tools"
    libs_softmmu="$glusterfs_libs $libs_softmmu"
  else
    if test "$glusterfs" = "yes" ; then
      feature_not_found "GlusterFS backend support"
    fi
    glusterfs=no
  fi
fi

#
# Check for xxxat() functions when we are building linux-user
# emulator.  This is done because older glibc versions don't
# have syscall stubs for these implemented.
#
atfile=no
cat > $TMPC << EOF
#define _ATFILE_SOURCE
#include <sys/types.h>
#include <fcntl.h>
#include <unistd.h>

int
main(void)
{
	/* try to unlink nonexisting file */
	return (unlinkat(AT_FDCWD, "nonexistent_file", 0));
}
EOF
if compile_prog "" "" ; then
  atfile=yes
fi

# Check for inotify functions when we are building linux-user
# emulator.  This is done because older glibc versions don't
# have syscall stubs for these implemented.  In that case we
# don't provide them even if kernel supports them.
#
inotify=no
cat > $TMPC << EOF
#include <sys/inotify.h>

int
main(void)
{
	/* try to start inotify */
	return inotify_init();
}
EOF
if compile_prog "" "" ; then
  inotify=yes
fi

inotify1=no
cat > $TMPC << EOF
#include <sys/inotify.h>

int
main(void)
{
    /* try to start inotify */
    return inotify_init1(0);
}
EOF
if compile_prog "" "" ; then
  inotify1=yes
fi

# check if utimensat and futimens are supported
utimens=no
cat > $TMPC << EOF
#define _ATFILE_SOURCE
#include <stddef.h>
#include <fcntl.h>
#include <sys/stat.h>

int main(void)
{
    utimensat(AT_FDCWD, "foo", NULL, 0);
    futimens(0, NULL);
    return 0;
}
EOF
if compile_prog "" "" ; then
  utimens=yes
fi

# check if pipe2 is there
pipe2=no
cat > $TMPC << EOF
#include <unistd.h>
#include <fcntl.h>

int main(void)
{
    int pipefd[2];
    return pipe2(pipefd, O_CLOEXEC);
}
EOF
if compile_prog "" "" ; then
  pipe2=yes
fi

# check if accept4 is there
accept4=no
cat > $TMPC << EOF
#include <sys/socket.h>
#include <stddef.h>

int main(void)
{
    accept4(0, NULL, NULL, SOCK_CLOEXEC);
    return 0;
}
EOF
if compile_prog "" "" ; then
  accept4=yes
fi

# check if tee/splice is there. vmsplice was added same time.
splice=no
cat > $TMPC << EOF
#include <unistd.h>
#include <fcntl.h>
#include <limits.h>

int main(void)
{
    int len, fd = 0;
    len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
    splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
    return 0;
}
EOF
if compile_prog "" "" ; then
  splice=yes
fi

##########################################
# signalfd probe
signalfd="no"
cat > $TMPC << EOF
#include <unistd.h>
#include <sys/syscall.h>
#include <signal.h>
int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }
EOF

if compile_prog "" "" ; then
  signalfd=yes
fi

# check if eventfd is supported
eventfd=no
cat > $TMPC << EOF
#include <sys/eventfd.h>

int main(void)
{
    return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
}
EOF
if compile_prog "" "" ; then
  eventfd=yes
fi

# check for fallocate
fallocate=no
cat > $TMPC << EOF
#include <fcntl.h>

int main(void)
{
    fallocate(0, 0, 0, 0);
    return 0;
}
EOF
if compile_prog "" "" ; then
  fallocate=yes
fi

# check for fallocate hole punching
fallocate_punch_hole=no
cat > $TMPC << EOF
#include <fcntl.h>
#include <linux/falloc.h>

int main(void)
{
    fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
    return 0;
}
EOF
if compile_prog "" "" ; then
  fallocate_punch_hole=yes
fi

# check for sync_file_range
sync_file_range=no
cat > $TMPC << EOF
#include <fcntl.h>

int main(void)
{
    sync_file_range(0, 0, 0, 0);
    return 0;
}
EOF
if compile_prog "" "" ; then
  sync_file_range=yes
fi

# check for linux/fiemap.h and FS_IOC_FIEMAP
fiemap=no
cat > $TMPC << EOF
#include <sys/ioctl.h>
#include <linux/fs.h>
#include <linux/fiemap.h>

int main(void)
{
    ioctl(0, FS_IOC_FIEMAP, 0);
    return 0;
}
EOF
if compile_prog "" "" ; then
  fiemap=yes
fi

# check for dup3
dup3=no
cat > $TMPC << EOF
#include <unistd.h>

int main(void)
{
    dup3(0, 0, 0);
    return 0;
}
EOF
if compile_prog "" "" ; then
  dup3=yes
fi

# check for epoll support
epoll=no
cat > $TMPC << EOF
#include <sys/epoll.h>

int main(void)
{
    epoll_create(0);
    return 0;
}
EOF
if compile_prog "" "" ; then
  epoll=yes
fi

# epoll_create1 and epoll_pwait are later additions
# so we must check separately for their presence
epoll_create1=no
cat > $TMPC << EOF
#include <sys/epoll.h>

int main(void)
{
    /* Note that we use epoll_create1 as a value, not as
     * a function being called. This is necessary so that on
     * old SPARC glibc versions where the function was present in
     * the library but not declared in the header file we will
     * fail the configure check. (Otherwise we will get a compiler
     * warning but not an error, and will proceed to fail the
     * qemu compile where we compile with -Werror.)
     */
    return (int)(uintptr_t)&epoll_create1;
}
EOF
if compile_prog "" "" ; then
  epoll_create1=yes
fi

epoll_pwait=no
cat > $TMPC << EOF
#include <sys/epoll.h>

int main(void)
{
    epoll_pwait(0, 0, 0, 0, 0);
    return 0;
}
EOF
if compile_prog "" "" ; then
  epoll_pwait=yes
fi

# check for sendfile support
sendfile=no
cat > $TMPC << EOF
#include <sys/sendfile.h>

int main(void)
{
    return sendfile(0, 0, 0, 0);
}
EOF
if compile_prog "" "" ; then
  sendfile=yes
fi

# Check if tools are available to build documentation.
if test "$docs" != "no" ; then
  if has makeinfo && has pod2man; then
    docs=yes
  else
    if test "$docs" = "yes" ; then
      feature_not_found "docs"
    fi
    docs=no
  fi
fi

# Search for bswap_32 function
byteswap_h=no
cat > $TMPC << EOF
#include <byteswap.h>
int main(void) { return bswap_32(0); }
EOF
if compile_prog "" "" ; then
  byteswap_h=yes
fi

# Search for bswap32 function
bswap_h=no
cat > $TMPC << EOF
#include <sys/endian.h>
#include <sys/types.h>
#include <machine/bswap.h>
int main(void) { return bswap32(0); }
EOF
if compile_prog "" "" ; then
  bswap_h=yes
fi

##########################################
# Do we have libiscsi
# We check for iscsi_unmap_sync() to make sure we have a
# recent enough version of libiscsi.
if test "$libiscsi" != "no" ; then
  cat > $TMPC << EOF
#include <stdio.h>
#include <iscsi/iscsi.h>
int main(void) { iscsi_unmap_sync(NULL,0,0,0,NULL,0); return 0; }
EOF
  if $pkg_config --atleast-version=1.7.0 libiscsi --modversion >/dev/null 2>&1; then
    libiscsi="yes"
    libiscsi_cflags=$($pkg_config --cflags libiscsi 2>/dev/null)
    libiscsi_libs=$($pkg_config --libs libiscsi 2>/dev/null)
    CFLAGS="$CFLAGS $libiscsi_cflags"
    LIBS="$LIBS $libiscsi_libs"
  elif compile_prog "" "-liscsi" ; then
    libiscsi="yes"
    LIBS="$LIBS -liscsi"
  else
    if test "$libiscsi" = "yes" ; then
      feature_not_found "libiscsi"
    fi
    libiscsi="no"
  fi
fi


##########################################
# Do we need libm
cat > $TMPC << EOF
#include <math.h>
int main(void) { return isnan(sin(0.0)); }
EOF
if compile_prog "" "" ; then
  :
elif compile_prog "" "-lm" ; then
  LIBS="-lm $LIBS"
  libs_qga="-lm $libs_qga"
else
  error_exit "libm check failed"
fi

##########################################
# Do we need librt
# uClibc provides 2 versions of clock_gettime(), one with realtime
# support and one without. This means that the clock_gettime() don't
# need -lrt. We still need it for timer_create() so we check for this
# function in addition.
cat > $TMPC <<EOF
#include <signal.h>
#include <time.h>
int main(void) {
  timer_create(CLOCK_REALTIME, NULL, NULL);
  return clock_gettime(CLOCK_REALTIME, NULL);
}
EOF

if compile_prog "" "" ; then
  :
# we need pthread for static linking. use previous pthread test result
elif compile_prog "" "-lrt $pthread_lib" ; then
  LIBS="-lrt $LIBS"
  libs_qga="-lrt $libs_qga"
fi

if test "$darwin" != "yes" -a "$mingw32" != "yes" -a "$solaris" != yes -a \
        "$aix" != "yes" -a "$haiku" != "yes" ; then
    libs_softmmu="-lutil $libs_softmmu"
fi

##########################################
# spice probe
if test "$spice" != "no" ; then
  cat > $TMPC << EOF
#include <spice.h>
int main(void) { spice_server_new(); return 0; }
EOF
  spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
  spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
  if $pkg_config --atleast-version=0.12.0 spice-server >/dev/null 2>&1 && \
     $pkg_config --atleast-version=0.12.3 spice-protocol > /dev/null 2>&1 && \
     compile_prog "$spice_cflags" "$spice_libs" ; then
    spice="yes"
    libs_softmmu="$libs_softmmu $spice_libs"
    QEMU_CFLAGS="$QEMU_CFLAGS $spice_cflags"
    spice_protocol_version=$($pkg_config --modversion spice-protocol)
    spice_server_version=$($pkg_config --modversion spice-server)
  else
    if test "$spice" = "yes" ; then
      feature_not_found "spice"
    fi
    spice="no"
  fi
fi

# check for libcacard for smartcard support
smartcard_cflags=""
# TODO - what's the minimal nss version we support?
if test "$smartcard_nss" != "no"; then
  cat > $TMPC << EOF
#include <pk11pub.h>
int main(void) { PK11_FreeSlot(0); return 0; }
EOF
    smartcard_includes="-I\$(SRC_PATH)/libcacard"
    libcacard_libs="$($pkg_config --libs nss 2>/dev/null) $glib_libs"
    libcacard_cflags="$($pkg_config --cflags nss 2>/dev/null) $glib_cflags"
    test_cflags="$libcacard_cflags"
    # The header files in nss < 3.13.3 have a bug which causes them to
    # emit a warning. If we're going to compile QEMU with -Werror, then
    # test that the headers don't have this bug. Otherwise we would pass
    # the configure test but fail to compile QEMU later.
    if test "$werror" = "yes"; then
        test_cflags="-Werror $test_cflags"
    fi
    if test -n "$libtool" &&
            $pkg_config --atleast-version=3.12.8 nss >/dev/null 2>&1 && \
      compile_prog "$test_cflags" "$libcacard_libs"; then
        smartcard_nss="yes"
        QEMU_CFLAGS="$QEMU_CFLAGS $libcacard_cflags"
        QEMU_INCLUDES="$QEMU_INCLUDES $smartcard_includes"
        libs_softmmu="$libcacard_libs $libs_softmmu"
    else
        if test "$smartcard_nss" = "yes"; then
            feature_not_found "nss"
        fi
        smartcard_nss="no"
    fi
fi

# check for usbredirparser for usb network redirection support
if test "$usb_redir" != "no" ; then
    if $pkg_config --atleast-version=0.6 libusbredirparser-0.5 >/dev/null 2>&1 ; then
        usb_redir="yes"
        usb_redir_cflags=$($pkg_config --cflags libusbredirparser-0.5 2>/dev/null)
        usb_redir_libs=$($pkg_config --libs libusbredirparser-0.5 2>/dev/null)
        QEMU_CFLAGS="$QEMU_CFLAGS $usb_redir_cflags"
        libs_softmmu="$libs_softmmu $usb_redir_libs"
    else
        if test "$usb_redir" = "yes"; then
            feature_not_found "usb-redir"
        fi
        usb_redir="no"
    fi
fi

##########################################

##########################################
# check if we have fdatasync

fdatasync=no
cat > $TMPC << EOF
#include <unistd.h>
int main(void) {
#if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
return fdatasync(0);
#else
#error Not supported
#endif
}
EOF
if compile_prog "" "" ; then
    fdatasync=yes
fi

##########################################
# check if we have madvise

madvise=no
cat > $TMPC << EOF
#include <sys/types.h>
#include <sys/mman.h>
#include <stddef.h>
int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }
EOF
if compile_prog "" "" ; then
    madvise=yes
fi

##########################################
# check if we have posix_madvise

posix_madvise=no
cat > $TMPC << EOF
#include <sys/mman.h>
#include <stddef.h>
int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }
EOF
if compile_prog "" "" ; then
    posix_madvise=yes
fi

##########################################
# check if we have usable SIGEV_THREAD_ID

sigev_thread_id=no
cat > $TMPC << EOF
#include <signal.h>
int main(void) {
  struct sigevent ev;
  ev.sigev_notify = SIGEV_THREAD_ID;
  ev._sigev_un._tid = 0;
  asm volatile("" : : "g"(&ev));
  return 0;
}
EOF
if compile_prog "" "" ; then
    sigev_thread_id=yes
fi

##########################################
# check if trace backend exists

$python "$source_path/scripts/tracetool.py" "--backend=$trace_backend" --check-backend  > /dev/null 2> /dev/null
if test "$?" -ne 0 ; then
  error_exit "invalid trace backend" \
      "Please choose a supported trace backend."
fi

##########################################
# For 'ust' backend, test if ust headers are present
if test "$trace_backend" = "ust"; then
  cat > $TMPC << EOF
#include <ust/tracepoint.h>
#include <ust/marker.h>
int main(void) { return 0; }
EOF
  if compile_prog "" "" ; then
    LIBS="-lust -lurcu-bp $LIBS"
    libs_qga="-lust -lurcu-bp $libs_qga"
  else
    error_exit "Trace backend 'ust' missing libust header files"
  fi
fi

##########################################
# For 'dtrace' backend, test if 'dtrace' command is present
if test "$trace_backend" = "dtrace"; then
  if ! has 'dtrace' ; then
    error_exit "dtrace command is not found in PATH $PATH"
  fi
  trace_backend_stap="no"
  if has 'stap' ; then
    trace_backend_stap="yes"
  fi
fi

##########################################
# __sync_fetch_and_and requires at least -march=i486. Many toolchains
# use i686 as default anyway, but for those that don't, an explicit
# specification is necessary
if test "$vhost_net" = "yes" && test "$cpu" = "i386"; then
  cat > $TMPC << EOF
static int sfaa(int *ptr)
{
  return __sync_fetch_and_and(ptr, 0);
}

int main(void)
{
  int val = 42;
  sfaa(&val);
  return val;
}
EOF
  if ! compile_prog "" "" ; then
    QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
  fi
fi

##########################################
# check and set a backend for coroutine

# We prefer ucontext, but it's not always possible. The fallback
# is sigcontext. gthread is not selectable except explicitly, because
# it is not functional enough to run QEMU proper. (It is occasionally
# useful for debugging purposes.)  On Windows the only valid backend
# is the Windows-specific one.

ucontext_works=no
if test "$darwin" != "yes"; then
  cat > $TMPC << EOF
#include <ucontext.h>
#ifdef __stub_makecontext
#error Ignoring glibc stub makecontext which will always fail
#endif
int main(void) { makecontext(0, 0, 0); return 0; }
EOF
  if compile_prog "" "" ; then
    ucontext_works=yes
  fi
fi

if test "$coroutine" = ""; then
  if test "$mingw32" = "yes"; then
    coroutine=win32
  elif test "$ucontext_works" = "yes"; then
    coroutine=ucontext
  else
    coroutine=sigaltstack
  fi
else
  case $coroutine in
  windows)
    if test "$mingw32" != "yes"; then
      error_exit "'windows' coroutine backend only valid for Windows"
    fi
    # Unfortunately the user visible backend name doesn't match the
    # coroutine-*.c filename for this case, so we have to adjust it here.
    coroutine=win32
    ;;
  ucontext)
    if test "$ucontext_works" != "yes"; then
      feature_not_found "ucontext"
    fi
    ;;
  gthread|sigaltstack)
    if test "$mingw32" = "yes"; then
      error_exit "only the 'windows' coroutine backend is valid for Windows"
    fi
    ;;
  *)
    error_exit "unknown coroutine backend $coroutine"
    ;;
  esac
fi

##########################################
# check if we have open_by_handle_at

open_by_handle_at=no
cat > $TMPC << EOF
#include <fcntl.h>
#if !defined(AT_EMPTY_PATH)
# error missing definition
#else
int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
#endif
EOF
if compile_prog "" "" ; then
    open_by_handle_at=yes
fi

########################################
# check if we have linux/magic.h

linux_magic_h=no
cat > $TMPC << EOF
#include <linux/magic.h>
int main(void) {
  return 0;
}
EOF
if compile_prog "" "" ; then
    linux_magic_h=yes
fi

########################################
# check whether we can disable warning option with a pragma (this is needed
# to silence warnings in the headers of some versions of external libraries).
# This test has to be compiled with -Werror as otherwise an unknown pragma is
# only a warning.
#
# If we can't selectively disable warning in the code, disable -Werror so that
# the build doesn't fail anyway.

pragma_disable_unused_but_set=no
cat > $TMPC << EOF
#pragma GCC diagnostic ignored "-Wunused-but-set-variable"
#pragma GCC diagnostic ignored "-Wstrict-prototypes"

int main(void) {
    return 0;
}
EOF
if compile_prog "-Werror" "" ; then
    pragma_diagnostic_available=yes
else
    werror=no
fi

########################################
# check if we have valgrind/valgrind.h and valgrind/memcheck.h

valgrind_h=no
cat > $TMPC << EOF
#include <valgrind/valgrind.h>
#include <valgrind/memcheck.h>
int main(void) {
  return 0;
}
EOF
if compile_prog "" "" ; then
    valgrind_h=yes
fi

########################################
# check if environ is declared

has_environ=no
cat > $TMPC << EOF
#include <unistd.h>
int main(void) {
    environ = 0;
    return 0;
}
EOF
if compile_prog "" "" ; then
    has_environ=yes
fi

########################################
# check if cpuid.h is usable.

cpuid_h=no
cat > $TMPC << EOF
#include <cpuid.h>
int main(void) {
  return 0;
}
EOF
if compile_prog "" "" ; then
    cpuid_h=yes
fi

########################################
# check if __[u]int128_t is usable.

int128=no
cat > $TMPC << EOF
__int128_t a;
__uint128_t b;
int main (void) {
  a = a + b;
  b = a * b;
  return 0;
}
EOF
if compile_prog "" "" ; then
    int128=yes
fi

##########################################
# End of CC checks
# After here, no more $cc or $ld runs

if test "$gcov" = "yes" ; then
  CFLAGS="-fprofile-arcs -ftest-coverage -g $CFLAGS"
  LDFLAGS="-fprofile-arcs -ftest-coverage $LDFLAGS"
elif test "$debug" = "no" ; then
  CFLAGS="-O2 -D_FORTIFY_SOURCE=2 $CFLAGS"
fi


# Disable zero malloc errors for official releases unless explicitly told to
# enable/disable
if test -z "$zero_malloc" ; then
    if test "$z_version" = "50" ; then
	zero_malloc="no"
    else
	zero_malloc="yes"
    fi
fi

# Now we've finished running tests it's OK to add -Werror to the compiler flags
if test "$werror" = "yes"; then
    QEMU_CFLAGS="-Werror $QEMU_CFLAGS"
fi

if test "$solaris" = "no" ; then
    if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
        LDFLAGS="-Wl,--warn-common $LDFLAGS"
    fi
fi

# test if pod2man has --utf8 option
if pod2man --help | grep -q utf8; then
    POD2MAN="pod2man --utf8"
else
    POD2MAN="pod2man"
fi

# Use ASLR, no-SEH and DEP if available
if test "$mingw32" = "yes" ; then
    for flag in --dynamicbase --no-seh --nxcompat; do
        if $ld --help 2>/dev/null | grep ".$flag" >/dev/null 2>/dev/null ; then
            LDFLAGS="-Wl,$flag $LDFLAGS"
        fi
    done
fi

qemu_confdir=$sysconfdir$confsuffix
qemu_datadir=$datadir$confsuffix
qemu_localedir="$datadir/locale"

tools=""
if test "$want_tools" = "yes" ; then
  tools="qemu-img\$(EXESUF) qemu-io\$(EXESUF) $tools"
  if [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" ] ; then
    tools="qemu-nbd\$(EXESUF) $tools"
  fi
fi
if test "$softmmu" = yes ; then
  if test "$virtfs" != no ; then
    if test "$cap" = yes && test "$linux" = yes && test "$attr" = yes ; then
      virtfs=yes
      tools="$tools fsdev/virtfs-proxy-helper\$(EXESUF)"
    else
      if test "$virtfs" = yes; then
        error_exit "VirtFS is supported only on Linux and requires libcap-devel and libattr-devel"
      fi
      virtfs=no
    fi
  fi
  if [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" ] ; then
    if [ "$guest_agent" = "yes" ]; then
      tools="qemu-ga\$(EXESUF) $tools"
    fi
  fi
fi

# Mac OS X ships with a broken assembler
roms=
if test \( "$cpu" = "i386" -o "$cpu" = "x86_64" \) -a \
        "$targetos" != "Darwin" -a "$targetos" != "SunOS" -a \
        "$softmmu" = yes ; then
  roms="optionrom"
fi
if test "$cpu" = "ppc64" -a "$targetos" != "Darwin" ; then
  roms="$roms spapr-rtas"
fi

# add pixman flags after all config tests are done
QEMU_CFLAGS="$QEMU_CFLAGS $pixman_cflags"
libs_softmmu="$libs_softmmu $pixman_libs"

echo "Install prefix    $prefix"
echo "BIOS directory    `eval echo $qemu_datadir`"
echo "binary directory  `eval echo $bindir`"
echo "library directory `eval echo $libdir`"
echo "libexec directory `eval echo $libexecdir`"
echo "include directory `eval echo $includedir`"
echo "config directory  `eval echo $sysconfdir`"
echo "local state directory   `eval echo $local_statedir`"
if test "$mingw32" = "no" ; then
echo "Manual directory  `eval echo $mandir`"
echo "ELF interp prefix $interp_prefix"
fi
echo "Source path       $source_path"
echo "C compiler        $cc"
echo "Host C compiler   $host_cc"
echo "Objective-C compiler $objcc"
echo "CFLAGS            $CFLAGS"
echo "QEMU_CFLAGS       $QEMU_CFLAGS"
echo "LDFLAGS           $LDFLAGS"
echo "make              $make"
echo "install           $install"
echo "python            $python"
if test "$slirp" = "yes" ; then
    echo "smbd              $smbd"
fi
echo "host CPU          $cpu"
echo "host big endian   $bigendian"
echo "target list       $target_list"
echo "tcg debug enabled $debug_tcg"
echo "gprof enabled     $gprof"
echo "sparse enabled    $sparse"
echo "strip binaries    $strip_opt"
echo "profiler          $profiler"
echo "static build      $static"
echo "-Werror enabled   $werror"
if test "$darwin" = "yes" ; then
    echo "Cocoa support     $cocoa"
fi
echo "pixman            $pixman"
echo "SDL support       $sdl"
echo "GTK support       $gtk"
echo "curses support    $curses"
echo "curl support      $curl"
echo "mingw32 support   $mingw32"
echo "Audio drivers     $audio_drv_list"
echo "Extra audio cards $audio_card_list"
echo "Block whitelist   $block_drv_whitelist"
echo "Mixer emulation   $mixemu"
echo "VirtFS support    $virtfs"
echo "VNC support       $vnc"
if test "$vnc" = "yes" ; then
    echo "VNC TLS support   $vnc_tls"
    echo "VNC SASL support  $vnc_sasl"
    echo "VNC JPEG support  $vnc_jpeg"
    echo "VNC PNG support   $vnc_png"
    echo "VNC WS support    $vnc_ws"
fi
if test -n "$sparc_cpu"; then
    echo "Target Sparc Arch $sparc_cpu"
fi
echo "xen support       $xen"
echo "brlapi support    $brlapi"
echo "bluez  support    $bluez"
echo "Documentation     $docs"
[ ! -z "$uname_release" ] && \
echo "uname -r          $uname_release"
echo "NPTL support      $nptl"
echo "GUEST_BASE        $guest_base"
echo "PIE               $pie"
echo "vde support       $vde"
echo "Linux AIO support $linux_aio"
echo "ATTR/XATTR support $attr"
echo "Install blobs     $blobs"
echo "KVM support       $kvm"
echo "TCG interpreter   $tcg_interpreter"
echo "fdt support       $fdt"
echo "preadv support    $preadv"
echo "fdatasync         $fdatasync"
echo "madvise           $madvise"
echo "posix_madvise     $posix_madvise"
echo "sigev_thread_id   $sigev_thread_id"
echo "uuid support      $uuid"
echo "libcap-ng support $cap_ng"
echo "vhost-net support $vhost_net"
echo "Trace backend     $trace_backend"
echo "Trace output file $trace_file-<pid>"
echo "spice support     $spice ($spice_protocol_version/$spice_server_version)"
echo "rbd support       $rbd"
echo "xfsctl support    $xfs"
echo "nss used          $smartcard_nss"
echo "usb net redir     $usb_redir"
echo "GLX support       $glx"
echo "libiscsi support  $libiscsi"
echo "build guest agent $guest_agent"
echo "seccomp support   $seccomp"
echo "coroutine backend $coroutine"
echo "GlusterFS support $glusterfs"
echo "virtio-blk-data-plane $virtio_blk_data_plane"
echo "gcov              $gcov_tool"
echo "gcov enabled      $gcov"
echo "TPM support       $tpm"
echo "libssh2 support   $libssh2"

if test "$sdl_too_old" = "yes"; then
echo "-> Your SDL version is too old - please upgrade to have SDL support"
fi

config_host_mak="config-host.mak"
config_host_ld="config-host.ld"

echo "# Automatically generated by configure - do not modify" >config-all-disas.mak

echo "# Automatically generated by configure - do not modify" > $config_host_mak
printf "# Configured with:" >> $config_host_mak
printf " '%s'" "$0" "$@" >> $config_host_mak
echo >> $config_host_mak

echo all: >> $config_host_mak
echo "prefix=$prefix" >> $config_host_mak
echo "bindir=$bindir" >> $config_host_mak
echo "libdir=$libdir" >> $config_host_mak
echo "libexecdir=$libexecdir" >> $config_host_mak
echo "includedir=$includedir" >> $config_host_mak
echo "mandir=$mandir" >> $config_host_mak
echo "sysconfdir=$sysconfdir" >> $config_host_mak
echo "qemu_confdir=$qemu_confdir" >> $config_host_mak
echo "qemu_datadir=$qemu_datadir" >> $config_host_mak
echo "qemu_docdir=$qemu_docdir" >> $config_host_mak
echo "qemu_localstatedir=$local_statedir" >> $config_host_mak
echo "qemu_helperdir=$libexecdir" >> $config_host_mak
echo "extra_cflags=$EXTRA_CFLAGS" >> $config_host_mak
echo "extra_ldflags=$EXTRA_LDFLAGS" >> $config_host_mak
echo "qemu_localedir=$qemu_localedir" >> $config_host_mak

echo "ARCH=$ARCH" >> $config_host_mak
if test "$debug_tcg" = "yes" ; then
  echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
fi
if test "$strip_opt" = "yes" ; then
  echo "STRIP=${strip}" >> $config_host_mak
fi
if test "$bigendian" = "yes" ; then
  echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
fi
if test "$mingw32" = "yes" ; then
  echo "CONFIG_WIN32=y" >> $config_host_mak
  rc_version=`cat $source_path/VERSION`
  version_major=${rc_version%%.*}
  rc_version=${rc_version#*.}
  version_minor=${rc_version%%.*}
  rc_version=${rc_version#*.}
  version_subminor=${rc_version%%.*}
  version_micro=0
  echo "CONFIG_FILEVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
  echo "CONFIG_PRODUCTVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
else
  echo "CONFIG_POSIX=y" >> $config_host_mak
fi

if test "$linux" = "yes" ; then
  echo "CONFIG_LINUX=y" >> $config_host_mak
fi

if test "$darwin" = "yes" ; then
  echo "CONFIG_DARWIN=y" >> $config_host_mak
fi

if test "$aix" = "yes" ; then
  echo "CONFIG_AIX=y" >> $config_host_mak
fi

if test "$solaris" = "yes" ; then
  echo "CONFIG_SOLARIS=y" >> $config_host_mak
  echo "CONFIG_SOLARIS_VERSION=$solarisrev" >> $config_host_mak
  if test "$needs_libsunmath" = "yes" ; then
    echo "CONFIG_NEEDS_LIBSUNMATH=y" >> $config_host_mak
  fi
fi
if test "$haiku" = "yes" ; then
  echo "CONFIG_HAIKU=y" >> $config_host_mak
fi
if test "$static" = "yes" ; then
  echo "CONFIG_STATIC=y" >> $config_host_mak
fi
if test "$profiler" = "yes" ; then
  echo "CONFIG_PROFILER=y" >> $config_host_mak
fi
if test "$slirp" = "yes" ; then
  echo "CONFIG_SLIRP=y" >> $config_host_mak
  echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
fi
if test "$vde" = "yes" ; then
  echo "CONFIG_VDE=y" >> $config_host_mak
fi
if test "$cap_ng" = "yes" ; then
  echo "CONFIG_LIBCAP=y" >> $config_host_mak
fi
for card in $audio_card_list; do
    def=CONFIG_`echo $card | LC_ALL=C tr '[a-z]' '[A-Z]'`
    echo "$def=y" >> $config_host_mak
done
echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
for drv in $audio_drv_list; do
    def=CONFIG_`echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]'`
    echo "$def=y" >> $config_host_mak
    if test "$drv" = "fmod"; then
        echo "FMOD_CFLAGS=-I$fmod_inc" >> $config_host_mak
    fi
done
if test "$audio_pt_int" = "yes" ; then
  echo "CONFIG_AUDIO_PT_INT=y" >> $config_host_mak
fi
if test "$audio_win_int" = "yes" ; then
  echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
fi
echo "CONFIG_BDRV_WHITELIST=$block_drv_whitelist" >> $config_host_mak
if test "$mixemu" = "yes" ; then
  echo "CONFIG_MIXEMU=y" >> $config_host_mak
fi
if test "$vnc" = "yes" ; then
  echo "CONFIG_VNC=y" >> $config_host_mak
fi
if test "$vnc_tls" = "yes" ; then
  echo "CONFIG_VNC_TLS=y" >> $config_host_mak
fi
if test "$vnc_sasl" = "yes" ; then
  echo "CONFIG_VNC_SASL=y" >> $config_host_mak
fi
if test "$vnc_jpeg" = "yes" ; then
  echo "CONFIG_VNC_JPEG=y" >> $config_host_mak
fi
if test "$vnc_png" = "yes" ; then
  echo "CONFIG_VNC_PNG=y" >> $config_host_mak
fi
if test "$vnc_ws" = "yes" ; then
  echo "CONFIG_VNC_WS=y" >> $config_host_mak
  echo "VNC_WS_CFLAGS=$vnc_ws_cflags" >> $config_host_mak
fi
if test "$fnmatch" = "yes" ; then
  echo "CONFIG_FNMATCH=y" >> $config_host_mak
fi
if test "$uuid" = "yes" ; then
  echo "CONFIG_UUID=y" >> $config_host_mak
fi
if test "$xfs" = "yes" ; then
  echo "CONFIG_XFS=y" >> $config_host_mak
fi
qemu_version=`head $source_path/VERSION`
echo "VERSION=$qemu_version" >>$config_host_mak
echo "PKGVERSION=$pkgversion" >>$config_host_mak
echo "SRC_PATH=$source_path" >> $config_host_mak
echo "TARGET_DIRS=$target_list" >> $config_host_mak
if [ "$docs" = "yes" ] ; then
  echo "BUILD_DOCS=yes" >> $config_host_mak
fi
if test "$sdl" = "yes" ; then
  echo "CONFIG_SDL=y" >> $config_host_mak
  echo "SDL_CFLAGS=$sdl_cflags" >> $config_host_mak
fi
if test "$cocoa" = "yes" ; then
  echo "CONFIG_COCOA=y" >> $config_host_mak
fi
if test "$curses" = "yes" ; then
  echo "CONFIG_CURSES=y" >> $config_host_mak
fi
if test "$atfile" = "yes" ; then
  echo "CONFIG_ATFILE=y" >> $config_host_mak
fi
if test "$utimens" = "yes" ; then
  echo "CONFIG_UTIMENSAT=y" >> $config_host_mak
fi
if test "$pipe2" = "yes" ; then
  echo "CONFIG_PIPE2=y" >> $config_host_mak
fi
if test "$accept4" = "yes" ; then
  echo "CONFIG_ACCEPT4=y" >> $config_host_mak
fi
if test "$splice" = "yes" ; then
  echo "CONFIG_SPLICE=y" >> $config_host_mak
fi
if test "$eventfd" = "yes" ; then
  echo "CONFIG_EVENTFD=y" >> $config_host_mak
fi
if test "$fallocate" = "yes" ; then
  echo "CONFIG_FALLOCATE=y" >> $config_host_mak
fi
if test "$fallocate_punch_hole" = "yes" ; then
  echo "CONFIG_FALLOCATE_PUNCH_HOLE=y" >> $config_host_mak
fi
if test "$sync_file_range" = "yes" ; then
  echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak
fi
if test "$fiemap" = "yes" ; then
  echo "CONFIG_FIEMAP=y" >> $config_host_mak
fi
if test "$dup3" = "yes" ; then
  echo "CONFIG_DUP3=y" >> $config_host_mak
fi
if test "$epoll" = "yes" ; then
  echo "CONFIG_EPOLL=y" >> $config_host_mak
fi
if test "$epoll_create1" = "yes" ; then
  echo "CONFIG_EPOLL_CREATE1=y" >> $config_host_mak
fi
if test "$epoll_pwait" = "yes" ; then
  echo "CONFIG_EPOLL_PWAIT=y" >> $config_host_mak
fi
if test "$sendfile" = "yes" ; then
  echo "CONFIG_SENDFILE=y" >> $config_host_mak
fi
if test "$inotify" = "yes" ; then
  echo "CONFIG_INOTIFY=y" >> $config_host_mak
fi
if test "$inotify1" = "yes" ; then
  echo "CONFIG_INOTIFY1=y" >> $config_host_mak
fi
if test "$byteswap_h" = "yes" ; then
  echo "CONFIG_BYTESWAP_H=y" >> $config_host_mak
fi
if test "$bswap_h" = "yes" ; then
  echo "CONFIG_MACHINE_BSWAP_H=y" >> $config_host_mak
fi
if test "$curl" = "yes" ; then
  echo "CONFIG_CURL=y" >> $config_host_mak
  echo "CURL_CFLAGS=$curl_cflags" >> $config_host_mak
fi
if test "$brlapi" = "yes" ; then
  echo "CONFIG_BRLAPI=y" >> $config_host_mak
fi
if test "$bluez" = "yes" ; then
  echo "CONFIG_BLUEZ=y" >> $config_host_mak
  echo "BLUEZ_CFLAGS=$bluez_cflags" >> $config_host_mak
fi
echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
if test "$gtk" = "yes" ; then
  echo "CONFIG_GTK=y" >> $config_host_mak
  echo "GTK_CFLAGS=$gtk_cflags" >> $config_host_mak
  echo "VTE_CFLAGS=$vte_cflags" >> $config_host_mak
fi
if test "$xen" = "yes" ; then
  echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
  echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
fi
if test "$linux_aio" = "yes" ; then
  echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
fi
if test "$attr" = "yes" ; then
  echo "CONFIG_ATTR=y" >> $config_host_mak
fi
if test "$libattr" = "yes" ; then
  echo "CONFIG_LIBATTR=y" >> $config_host_mak
fi
if test "$virtfs" = "yes" ; then
  echo "CONFIG_VIRTFS=y" >> $config_host_mak
fi
if test "$blobs" = "yes" ; then
  echo "INSTALL_BLOBS=yes" >> $config_host_mak
fi
if test "$iovec" = "yes" ; then
  echo "CONFIG_IOVEC=y" >> $config_host_mak
fi
if test "$preadv" = "yes" ; then
  echo "CONFIG_PREADV=y" >> $config_host_mak
fi
if test "$fdt" = "yes" ; then
  echo "CONFIG_FDT=y" >> $config_host_mak
fi
if test "$signalfd" = "yes" ; then
  echo "CONFIG_SIGNALFD=y" >> $config_host_mak
fi
if test "$tcg_interpreter" = "yes" ; then
  echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
fi
if test "$fdatasync" = "yes" ; then
  echo "CONFIG_FDATASYNC=y" >> $config_host_mak
fi
if test "$madvise" = "yes" ; then
  echo "CONFIG_MADVISE=y" >> $config_host_mak
fi
if test "$posix_madvise" = "yes" ; then
  echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
fi
if test "$sigev_thread_id" = "yes" ; then
  echo "CONFIG_SIGEV_THREAD_ID=y" >> $config_host_mak
fi

if test "$spice" = "yes" ; then
  echo "CONFIG_SPICE=y" >> $config_host_mak
fi

if test "$smartcard_nss" = "yes" ; then
  echo "CONFIG_SMARTCARD_NSS=y" >> $config_host_mak
  echo "libcacard_libs=$libcacard_libs" >> $config_host_mak
  echo "libcacard_cflags=$libcacard_cflags" >> $config_host_mak
fi

if test "$usb_redir" = "yes" ; then
  echo "CONFIG_USB_REDIR=y" >> $config_host_mak
fi

if test "$glx" = "yes" ; then
  echo "CONFIG_GLX=y" >> $config_host_mak
fi

if test "$libiscsi" = "yes" ; then
  echo "CONFIG_LIBISCSI=y" >> $config_host_mak
fi

if test "$seccomp" = "yes"; then
  echo "CONFIG_SECCOMP=y" >> $config_host_mak
fi

# XXX: suppress that
if [ "$bsd" = "yes" ] ; then
  echo "CONFIG_BSD=y" >> $config_host_mak
fi

echo "CONFIG_UNAME_RELEASE=\"$uname_release\"" >> $config_host_mak

if test "$zero_malloc" = "yes" ; then
  echo "CONFIG_ZERO_MALLOC=y" >> $config_host_mak
fi
if test "$rbd" = "yes" ; then
  echo "CONFIG_RBD=y" >> $config_host_mak
fi

echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak

if test "$open_by_handle_at" = "yes" ; then
  echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
fi

if test "$linux_magic_h" = "yes" ; then
  echo "CONFIG_LINUX_MAGIC_H=y" >> $config_host_mak
fi

if test "$pragma_diagnostic_available" = "yes" ; then
  echo "CONFIG_PRAGMA_DIAGNOSTIC_AVAILABLE=y" >> $config_host_mak
fi

if test "$valgrind_h" = "yes" ; then
  echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
fi

if test "$has_environ" = "yes" ; then
  echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
fi

if test "$cpuid_h" = "yes" ; then
  echo "CONFIG_CPUID_H=y" >> $config_host_mak
fi

if test "$int128" = "yes" ; then
  echo "CONFIG_INT128=y" >> $config_host_mak
fi

if test "$glusterfs" = "yes" ; then
  echo "CONFIG_GLUSTERFS=y" >> $config_host_mak
fi

if test "$libssh2" = "yes" ; then
  echo "CONFIG_LIBSSH2=y" >> $config_host_mak
fi

if test "$virtio_blk_data_plane" = "yes" ; then
  echo 'CONFIG_VIRTIO_BLK_DATA_PLANE=$(CONFIG_VIRTIO)' >> $config_host_mak
fi

# USB host support
case "$usb" in
linux)
  echo "HOST_USB=linux legacy" >> $config_host_mak
;;
bsd)
  echo "HOST_USB=bsd" >> $config_host_mak
;;
*)
  echo "HOST_USB=stub" >> $config_host_mak
;;
esac

# use default implementation for tracing backend-specific routines
trace_default=yes
echo "TRACE_BACKEND=$trace_backend" >> $config_host_mak
if test "$trace_backend" = "nop"; then
  echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
fi
if test "$trace_backend" = "simple"; then
  echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
  trace_default=no
  # Set the appropriate trace file.
  trace_file="\"$trace_file-\" FMT_pid"
fi
if test "$trace_backend" = "stderr"; then
  echo "CONFIG_TRACE_STDERR=y" >> $config_host_mak
  trace_default=no
fi
if test "$trace_backend" = "ust"; then
  echo "CONFIG_TRACE_UST=y" >> $config_host_mak
fi
if test "$trace_backend" = "dtrace"; then
  echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
  if test "$trace_backend_stap" = "yes" ; then
    echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
  fi
fi
echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
if test "$trace_default" = "yes"; then
  echo "CONFIG_TRACE_DEFAULT=y" >> $config_host_mak
fi

echo "TOOLS=$tools" >> $config_host_mak
echo "ROMS=$roms" >> $config_host_mak
echo "MAKE=$make" >> $config_host_mak
echo "INSTALL=$install" >> $config_host_mak
echo "INSTALL_DIR=$install -d -m 0755" >> $config_host_mak
echo "INSTALL_DATA=$install -c -m 0644" >> $config_host_mak
if test -n "$libtool"; then
  echo "INSTALL_PROG=\$(LIBTOOL) --mode=install $install -c -m 0755" >> $config_host_mak
  echo "INSTALL_LIB=\$(LIBTOOL) --mode=install $install -c -m 0644" >> $config_host_mak
else
  echo "INSTALL_PROG=$install -c -m 0755" >> $config_host_mak
  echo "INSTALL_LIB=$install -c -m 0644" >> $config_host_mak
fi
echo "PYTHON=$python" >> $config_host_mak
echo "CC=$cc" >> $config_host_mak
echo "CC_I386=$cc_i386" >> $config_host_mak
echo "HOST_CC=$host_cc" >> $config_host_mak
echo "OBJCC=$objcc" >> $config_host_mak
echo "AR=$ar" >> $config_host_mak
echo "AS=$as" >> $config_host_mak
echo "CPP=$cpp" >> $config_host_mak
echo "OBJCOPY=$objcopy" >> $config_host_mak
echo "LD=$ld" >> $config_host_mak
echo "WINDRES=$windres" >> $config_host_mak
echo "LIBTOOL=$libtool" >> $config_host_mak
echo "CFLAGS=$CFLAGS" >> $config_host_mak
echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
echo "QEMU_INCLUDES=$QEMU_INCLUDES" >> $config_host_mak
if test "$sparse" = "yes" ; then
  echo "CC           := REAL_CC=\"\$(CC)\" cgcc"       >> $config_host_mak
  echo "HOST_CC      := REAL_CC=\"\$(HOST_CC)\" cgcc"  >> $config_host_mak
  echo "QEMU_CFLAGS  += -Wbitwise -Wno-transparent-union -Wno-old-initializer -Wno-non-pointer-null" >> $config_host_mak
fi
if test "$cross_prefix" != ""; then
  echo "AUTOCONF_HOST := --host=${cross_prefix%-}"     >> $config_host_mak
else
  echo "AUTOCONF_HOST := "                             >> $config_host_mak
fi
echo "LDFLAGS=$LDFLAGS" >> $config_host_mak
echo "LIBS+=$LIBS" >> $config_host_mak
echo "LIBS_TOOLS+=$libs_tools" >> $config_host_mak
echo "EXESUF=$EXESUF" >> $config_host_mak
echo "LIBS_QGA+=$libs_qga" >> $config_host_mak
echo "POD2MAN=$POD2MAN" >> $config_host_mak
echo "TRANSLATE_OPT_CFLAGS=$TRANSLATE_OPT_CFLAGS" >> $config_host_mak
if test "$gcov" = "yes" ; then
  echo "CONFIG_GCOV=y" >> $config_host_mak
  echo "GCOV=$gcov_tool" >> $config_host_mak
fi

# generate list of library paths for linker script

$ld --verbose -v 2> /dev/null | grep SEARCH_DIR > ${config_host_ld}

if test -f ${config_host_ld}~ ; then
  if cmp -s $config_host_ld ${config_host_ld}~ ; then
    mv ${config_host_ld}~ $config_host_ld
  else
    rm ${config_host_ld}~
  fi
fi

# use included Linux headers
if test "$linux" = "yes" ; then
  mkdir -p linux-headers
  case "$cpu" in
  i386|x86_64)
    linux_arch=x86
    ;;
  ppcemb|ppc|ppc64)
    linux_arch=powerpc
    ;;
  s390x)
    linux_arch=s390
    ;;
  *)
    # For most CPUs the kernel architecture name and QEMU CPU name match.
    linux_arch="$cpu"
    ;;
  esac
    # For non-KVM architectures we will not have asm headers
    if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
      symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
    fi
fi

for target in $target_list; do
target_dir="$target"
config_target_mak=$target_dir/config-target.mak
target_arch2=`echo $target | cut -d '-' -f 1`
target_bigendian="no"

case "$target_arch2" in
  armeb|lm32|m68k|microblaze|mips|mipsn32|mips64|moxie|or32|ppc|ppcemb|ppc64|ppc64abi32|s390x|sh4eb|sparc|sparc64|sparc32plus|xtensaeb)
  target_bigendian=yes
  ;;
esac
target_softmmu="no"
target_user_only="no"
target_linux_user="no"
target_bsd_user="no"
case "$target" in
  ${target_arch2}-softmmu)
    target_softmmu="yes"
    ;;
  ${target_arch2}-linux-user)
    if test "$linux" != "yes" ; then
      error_exit "Target '$target' is only available on a Linux host"
    fi
    target_user_only="yes"
    target_linux_user="yes"
    ;;
  ${target_arch2}-bsd-user)
    if test "$bsd" != "yes" ; then
      error_exit "Target '$target' is only available on a BSD host"
    fi
    target_user_only="yes"
    target_bsd_user="yes"
    ;;
  *)
    error_exit "Target '$target' not recognised"
    exit 1
    ;;
esac

mkdir -p $target_dir
echo "# Automatically generated by configure - do not modify" > $config_target_mak

bflt="no"
target_nptl="no"
interp_prefix1=`echo "$interp_prefix" | sed "s/%M/$target_arch2/g"`
gdb_xml_files=""
target_short_alignment=2
target_int_alignment=4
target_long_alignment=4
target_llong_alignment=8
target_libs_softmmu=

TARGET_ARCH="$target_arch2"
TARGET_BASE_ARCH=""
TARGET_ABI_DIR=""

case "$target_arch2" in
  i386)
  ;;
  x86_64)
    TARGET_BASE_ARCH=i386
    target_long_alignment=8
  ;;
  alpha)
    target_long_alignment=8
    target_nptl="yes"
  ;;
  arm|armeb)
    TARGET_ARCH=arm
    bflt="yes"
    target_nptl="yes"
    gdb_xml_files="arm-core.xml arm-vfp.xml arm-vfp3.xml arm-neon.xml"
    target_llong_alignment=4
  ;;
  cris)
    target_nptl="yes"
  ;;
  lm32)
    target_libs_softmmu="$glx_libs"
  ;;
  m68k)
    bflt="yes"
    gdb_xml_files="cf-core.xml cf-fp.xml"
    target_int_alignment=2
    target_long_alignment=2
    target_llong_alignment=2
  ;;
  microblaze|microblazeel)
    TARGET_ARCH=microblaze
    bflt="yes"
    target_nptl="yes"
  ;;
  mips|mipsel)
    TARGET_ARCH=mips
    echo "TARGET_ABI_MIPSO32=y" >> $config_target_mak
    target_nptl="yes"
  ;;
  mipsn32|mipsn32el)
    TARGET_ARCH=mips64
    TARGET_BASE_ARCH=mips
    echo "TARGET_ABI_MIPSN32=y" >> $config_target_mak
    echo "TARGET_ABI32=y" >> $config_target_mak
  ;;
  mips64|mips64el)
    TARGET_ARCH=mips64
    TARGET_BASE_ARCH=mips
    echo "TARGET_ABI_MIPSN64=y" >> $config_target_mak
    target_long_alignment=8
  ;;
  moxie)
  ;;
  or32)
    TARGET_ARCH=openrisc
    TARGET_BASE_ARCH=openrisc
  ;;
  ppc)
    gdb_xml_files="power-core.xml power-fpu.xml power-altivec.xml power-spe.xml"
    target_nptl="yes"
  ;;
  ppcemb)
    TARGET_BASE_ARCH=ppc
    TARGET_ABI_DIR=ppc
    gdb_xml_files="power-core.xml power-fpu.xml power-altivec.xml power-spe.xml"
    target_nptl="yes"
  ;;
  ppc64)
    TARGET_BASE_ARCH=ppc
    TARGET_ABI_DIR=ppc
    gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml"
    target_long_alignment=8
  ;;
  ppc64abi32)
    TARGET_ARCH=ppc64
    TARGET_BASE_ARCH=ppc
    TARGET_ABI_DIR=ppc
    echo "TARGET_ABI32=y" >> $config_target_mak
    gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml"
  ;;
  sh4|sh4eb)
    TARGET_ARCH=sh4
    bflt="yes"
    target_nptl="yes"
  ;;
  sparc)
  ;;
  sparc64)
    TARGET_BASE_ARCH=sparc
    target_long_alignment=8
  ;;
  sparc32plus)
    TARGET_ARCH=sparc64
    TARGET_BASE_ARCH=sparc
    TARGET_ABI_DIR=sparc
    echo "TARGET_ABI32=y" >> $config_target_mak
  ;;
  s390x)
    target_nptl="yes"
    target_long_alignment=8
  ;;
  unicore32)
  ;;
  xtensa|xtensaeb)
    TARGET_ARCH=xtensa
  ;;
  *)
    error_exit "Unsupported target CPU"
  ;;
esac
# TARGET_BASE_ARCH needs to be defined after TARGET_ARCH
if [ "$TARGET_BASE_ARCH" = "" ]; then
  TARGET_BASE_ARCH=$TARGET_ARCH
fi

symlink "$source_path/Makefile.target" "$target_dir/Makefile"

upper() {
    echo "$@"| LC_ALL=C tr '[a-z]' '[A-Z]'
}

case "$cpu" in
  i386|x86_64|ppc)
    # The TCG interpreter currently does not support ld/st optimization.
    if test "$tcg_interpreter" = "no" ; then
        echo "CONFIG_QEMU_LDST_OPTIMIZATION=y" >> $config_target_mak
    fi
  ;;
esac

echo "TARGET_SHORT_ALIGNMENT=$target_short_alignment" >> $config_target_mak
echo "TARGET_INT_ALIGNMENT=$target_int_alignment" >> $config_target_mak
echo "TARGET_LONG_ALIGNMENT=$target_long_alignment" >> $config_target_mak
echo "TARGET_LLONG_ALIGNMENT=$target_llong_alignment" >> $config_target_mak
echo "TARGET_ARCH=$TARGET_ARCH" >> $config_target_mak
target_arch_name="`upper $TARGET_ARCH`"
echo "TARGET_$target_arch_name=y" >> $config_target_mak
echo "TARGET_ARCH2=$target_arch2" >> $config_target_mak
echo "TARGET_TYPE=TARGET_TYPE_`upper $target_arch2`" >> $config_target_mak
echo "TARGET_BASE_ARCH=$TARGET_BASE_ARCH" >> $config_target_mak
if [ "$TARGET_ABI_DIR" = "" ]; then
  TARGET_ABI_DIR=$TARGET_ARCH
fi
echo "TARGET_ABI_DIR=$TARGET_ABI_DIR" >> $config_target_mak
case "$target_arch2" in
  i386|x86_64)
    if test "$xen" = "yes" -a "$target_softmmu" = "yes" ; then
      echo "CONFIG_XEN=y" >> $config_target_mak
      if test "$xen_pci_passthrough" = yes; then
        echo "CONFIG_XEN_PCI_PASSTHROUGH=y" >> "$config_target_mak"
      fi
    else
      echo "CONFIG_NO_XEN=y" >> $config_target_mak
    fi
    ;;
  *)
    echo "CONFIG_NO_XEN=y" >> $config_target_mak
esac
case "$target_arch2" in
  arm|i386|x86_64|ppcemb|ppc|ppc64|s390x)
    # Make sure the target and host cpus are compatible
    if test "$kvm" = "yes" -a "$target_softmmu" = "yes" -a \
      \( "$target_arch2" = "$cpu" -o \
      \( "$target_arch2" = "ppcemb" -a "$cpu" = "ppc" \) -o \
      \( "$target_arch2" = "ppc64"  -a "$cpu" = "ppc" \) -o \
      \( "$target_arch2" = "ppc"    -a "$cpu" = "ppc64" \) -o \
      \( "$target_arch2" = "ppcemb" -a "$cpu" = "ppc64" \) -o \
      \( "$target_arch2" = "x86_64" -a "$cpu" = "i386"   \) -o \
      \( "$target_arch2" = "i386"   -a "$cpu" = "x86_64" \) \) ; then
      echo "CONFIG_KVM=y" >> $config_target_mak
      if test "$vhost_net" = "yes" ; then
        echo "CONFIG_VHOST_NET=y" >> $config_target_mak
      fi
    fi
esac
case "$target_arch2" in
  i386|x86_64)
    echo "CONFIG_HAVE_GET_MEMORY_MAPPING=y" >> $config_target_mak
esac
if test "$target_bigendian" = "yes" ; then
  echo "TARGET_WORDS_BIGENDIAN=y" >> $config_target_mak
fi
if test "$target_softmmu" = "yes" ; then
  echo "CONFIG_SOFTMMU=y" >> $config_target_mak
  echo "LIBS+=$libs_softmmu $target_libs_softmmu" >> $config_target_mak
  case "$target_arch2" in
    i386|x86_64)
      echo "CONFIG_HAVE_CORE_DUMP=y" >> $config_target_mak
  esac
fi
if test "$target_user_only" = "yes" ; then
  echo "CONFIG_USER_ONLY=y" >> $config_target_mak
  echo "CONFIG_QEMU_INTERP_PREFIX=\"$interp_prefix1\"" >> $config_target_mak
fi
if test "$target_linux_user" = "yes" ; then
  echo "CONFIG_LINUX_USER=y" >> $config_target_mak
fi
list=""
if test ! -z "$gdb_xml_files" ; then
  for x in $gdb_xml_files; do
    list="$list $source_path/gdb-xml/$x"
  done
  echo "TARGET_XML_FILES=$list" >> $config_target_mak
fi

if test "$target_user_only" = "yes" -a "$bflt" = "yes"; then
  echo "TARGET_HAS_BFLT=y" >> $config_target_mak
fi
if test "$target_user_only" = "yes" \
        -a "$nptl" = "yes" -a "$target_nptl" = "yes"; then
  echo "CONFIG_USE_NPTL=y" >> $config_target_mak
fi
if test "$target_user_only" = "yes" -a "$guest_base" = "yes"; then
  echo "CONFIG_USE_GUEST_BASE=y" >> $config_target_mak
fi
if test "$target_bsd_user" = "yes" ; then
  echo "CONFIG_BSD_USER=y" >> $config_target_mak
fi

# the static way of configuring available audio cards requires this workaround
if test "$target_user_only" != "yes" && grep -q CONFIG_PCSPK $source_path/default-configs/$target.mak; then
  echo "CONFIG_PCSPK=y" >> $config_target_mak
fi

# generate QEMU_CFLAGS/LDFLAGS for targets

cflags=""
includes=""
ldflags=""

if test "$tcg_interpreter" = "yes"; then
  includes="-I\$(SRC_PATH)/tcg/tci $includes"
elif test "$ARCH" = "sparc64" ; then
  includes="-I\$(SRC_PATH)/tcg/sparc $includes"
elif test "$ARCH" = "s390x" ; then
  includes="-I\$(SRC_PATH)/tcg/s390 $includes"
elif test "$ARCH" = "x86_64" ; then
  includes="-I\$(SRC_PATH)/tcg/i386 $includes"
else
  includes="-I\$(SRC_PATH)/tcg/\$(ARCH) $includes"
fi
includes="-I\$(SRC_PATH)/tcg $includes"

if test "$linux" = "yes" ; then
  includes="-I\$(SRC_PATH)/linux-headers $includes"
fi

for i in $ARCH $TARGET_BASE_ARCH ; do
  case "$i" in
  alpha)
    echo "CONFIG_ALPHA_DIS=y"  >> $config_target_mak
    echo "CONFIG_ALPHA_DIS=y"  >> config-all-disas.mak
  ;;
  arm)
    echo "CONFIG_ARM_DIS=y"  >> $config_target_mak
    echo "CONFIG_ARM_DIS=y"  >> config-all-disas.mak
  ;;
  cris)
    echo "CONFIG_CRIS_DIS=y"  >> $config_target_mak
    echo "CONFIG_CRIS_DIS=y"  >> config-all-disas.mak
  ;;
  hppa)
    echo "CONFIG_HPPA_DIS=y"  >> $config_target_mak
    echo "CONFIG_HPPA_DIS=y"  >> config-all-disas.mak
  ;;
  i386|x86_64)
    echo "CONFIG_I386_DIS=y"  >> $config_target_mak
    echo "CONFIG_I386_DIS=y"  >> config-all-disas.mak
  ;;
  ia64*)
    echo "CONFIG_IA64_DIS=y"  >> $config_target_mak
    echo "CONFIG_IA64_DIS=y"  >> config-all-disas.mak
  ;;
  lm32)
    echo "CONFIG_LM32_DIS=y"  >> $config_target_mak
    echo "CONFIG_LM32_DIS=y"  >> config-all-disas.mak
  ;;
  m68k)
    echo "CONFIG_M68K_DIS=y"  >> $config_target_mak
    echo "CONFIG_M68K_DIS=y"  >> config-all-disas.mak
  ;;
  microblaze*)
    echo "CONFIG_MICROBLAZE_DIS=y"  >> $config_target_mak
    echo "CONFIG_MICROBLAZE_DIS=y"  >> config-all-disas.mak
  ;;
  mips*)
    echo "CONFIG_MIPS_DIS=y"  >> $config_target_mak
    echo "CONFIG_MIPS_DIS=y"  >> config-all-disas.mak
  ;;
  moxie*)
    echo "CONFIG_MOXIE_DIS=y"  >> $config_target_mak
    echo "CONFIG_MOXIE_DIS=y"  >> config-all-disas.mak
  ;;
  or32)
    echo "CONFIG_OPENRISC_DIS=y"  >> $config_target_mak
    echo "CONFIG_OPENRISC_DIS=y"  >> config-all-disas.mak
  ;;
  ppc*)
    echo "CONFIG_PPC_DIS=y"  >> $config_target_mak
    echo "CONFIG_PPC_DIS=y"  >> config-all-disas.mak
  ;;
  s390*)
    echo "CONFIG_S390_DIS=y"  >> $config_target_mak
    echo "CONFIG_S390_DIS=y"  >> config-all-disas.mak
  ;;
  sh4)
    echo "CONFIG_SH4_DIS=y"  >> $config_target_mak
    echo "CONFIG_SH4_DIS=y"  >> config-all-disas.mak
  ;;
  sparc*)
    echo "CONFIG_SPARC_DIS=y"  >> $config_target_mak
    echo "CONFIG_SPARC_DIS=y"  >> config-all-disas.mak
  ;;
  xtensa*)
    echo "CONFIG_XTENSA_DIS=y"  >> $config_target_mak
    echo "CONFIG_XTENSA_DIS=y"  >> config-all-disas.mak
  ;;
  esac
done
if test "$tcg_interpreter" = "yes" ; then
  echo "CONFIG_TCI_DIS=y"  >> $config_target_mak
  echo "CONFIG_TCI_DIS=y"  >> config-all-disas.mak
fi

case "$ARCH" in
alpha)
  # Ensure there's only a single GP
  cflags="-msmall-data $cflags"
;;
esac

if test "$target_softmmu" = "yes" ; then
  case "$TARGET_BASE_ARCH" in
  arm)
    cflags="-DHAS_AUDIO $cflags"
  ;;
  lm32)
    cflags="-DHAS_AUDIO $cflags"
  ;;
  i386|mips|ppc)
    cflags="-DHAS_AUDIO -DHAS_AUDIO_CHOICE $cflags"
  ;;
  esac
fi

if test "$gprof" = "yes" ; then
  echo "TARGET_GPROF=yes" >> $config_target_mak
  if test "$target_linux_user" = "yes" ; then
    cflags="-p $cflags"
    ldflags="-p $ldflags"
  fi
  if test "$target_softmmu" = "yes" ; then
    ldflags="-p $ldflags"
    echo "GPROF_CFLAGS=-p" >> $config_target_mak
  fi
fi

if test "$tpm" = "yes"; then
  if test "$target_softmmu" = "yes" ; then
    echo "CONFIG_TPM=y" >> $config_host_mak
  fi
fi

if test "$ARCH" = "tci"; then
  linker_script=""
else
  linker_script="-Wl,-T../config-host.ld -Wl,-T,\$(SRC_PATH)/ldscripts/\$(ARCH).ld"
fi

if test "$target_linux_user" = "yes" -o "$target_bsd_user" = "yes" ; then
  case "$ARCH" in
  alpha | s390x)
    # The default placement of the application is fine.
    ;;
  *)
    ldflags="$linker_script $ldflags"
    ;;
  esac
fi

echo "LDFLAGS+=$ldflags" >> $config_target_mak
echo "QEMU_CFLAGS+=$cflags" >> $config_target_mak
echo "QEMU_INCLUDES+=$includes" >> $config_target_mak

done # for target in $targets

if [ "$pixman" = "internal" ]; then
  echo "config-host.h: subdir-pixman" >> $config_host_mak
fi

# build tree in object directory in case the source is not in the current directory
DIRS="tests tests/tcg tests/tcg/cris tests/tcg/lm32"
DIRS="$DIRS pc-bios/optionrom pc-bios/spapr-rtas"
DIRS="$DIRS roms/seabios roms/vgabios"
DIRS="$DIRS qapi-generated"
FILES="Makefile tests/tcg/Makefile qdict-test-data.txt"
FILES="$FILES tests/tcg/cris/Makefile tests/tcg/cris/.gdbinit"
FILES="$FILES tests/tcg/lm32/Makefile po/Makefile"
FILES="$FILES pc-bios/optionrom/Makefile pc-bios/keymaps"
FILES="$FILES pc-bios/spapr-rtas/Makefile"
FILES="$FILES roms/seabios/Makefile roms/vgabios/Makefile"
FILES="$FILES pc-bios/qemu-icon.bmp"
for bios_file in \
    $source_path/pc-bios/*.bin \
    $source_path/pc-bios/*.aml \
    $source_path/pc-bios/*.rom \
    $source_path/pc-bios/*.dtb \
    $source_path/pc-bios/openbios-* \
    $source_path/pc-bios/palcode-*
do
    FILES="$FILES pc-bios/`basename $bios_file`"
done
mkdir -p $DIRS
for f in $FILES ; do
    if [ -e "$source_path/$f" ] && [ "$source_path" != `pwd` ]; then
        symlink "$source_path/$f" "$f"
    fi
done

# temporary config to build submodules
for rom in seabios vgabios ; do
    config_mak=roms/$rom/config.mak
    echo "# Automatically generated by configure - do not modify" > $config_mak
    echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
    echo "AS=$as" >> $config_mak
    echo "CC=$cc" >> $config_mak
    echo "BCC=bcc" >> $config_mak
    echo "CPP=$cpp" >> $config_mak
    echo "OBJCOPY=objcopy" >> $config_mak
    echo "IASL=iasl" >> $config_mak
    echo "LD=$ld" >> $config_mak
done

if test "$docs" = "yes" ; then
  mkdir -p QMP
fi