* bfd.c (bfd_errmsg): Handle a NULL return from strerror.

[binutils.git] / gdb / configure.in

dnl Autoconf configure script for GDB, the GNU debugger.
dnl Copyright 1995, 1996 Free Software Foundation, Inc.
dnl
dnl This file is part of GDB.
dnl 
dnl This program is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
dnl the Free Software Foundation; either version 2 of the License, or
dnl (at your option) any later version.
dnl 
dnl This program is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
dnl GNU General Public License for more details.
dnl 
dnl You should have received a copy of the GNU General Public License
dnl along with this program; if not, write to the Free Software
dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

dnl Process this file with autoconf to produce a configure script.

AC_PREREQ(2.3)dnl
AC_INIT(main.c)

AC_PROG_CC
AC_AIX
AC_MINIX
AC_ISC_POSIX

AC_PROG_INSTALL
AC_PROG_RANLIB
AC_PROG_YACC

AC_CONFIG_AUX_DIR(`cd $srcdir;pwd`/..)
AC_CANONICAL_SYSTEM
AC_ARG_PROGRAM

AC_HEADER_STDC
AC_CHECK_HEADERS(limits.h memory.h string.h strings.h unistd.h termios.h termio.h sgtty.h stddef.h sys/procfs.h)
AC_HEADER_STAT

AC_MSG_CHECKING([for gregset_t type])
AC_CACHE_VAL(gdb_have_gregset_t,
[AC_TRY_LINK([#include <sys/procfs.h>],[gregset_t *gregsetp = 0],
gdb_have_gregset_t=yes, gdb_have_gregset_t=no)])
AC_MSG_RESULT($gdb_have_gregset_t)
if test $gdb_have_gregset_t = yes; then
  AC_DEFINE(HAVE_GREGSET_T)
fi

AC_MSG_CHECKING([for fpregset_t type])
AC_CACHE_VAL(gdb_have_fpregset_t,
[AC_TRY_LINK([#include <sys/procfs.h>],[fpregset_t *fpregsetp = 0],
gdb_have_fpregset_t=yes, gdb_have_fpregset_t=no)])
AC_MSG_RESULT($gdb_have_fpregset_t)
if test $gdb_have_fpregset_t = yes; then
  AC_DEFINE(HAVE_FPREGSET_T)
fi

dnl See if compiler supports "long double" type.  Can't use AC_C_LONG_DOUBLE
dnl because autoconf complains about cross-compilation issues.  However, this
dnl code uses the same variables as the macro for compatibility.

AC_MSG_CHECKING(for long double)
AC_CACHE_VAL(ac_cv_c_long_double,
[AC_TRY_COMPILE(, [long double foo;],
ac_cv_c_long_double=yes, ac_cv_c_long_double=no)])
AC_MSG_RESULT($ac_cv_c_long_double)
if test $ac_cv_c_long_double = yes; then
  AC_DEFINE(HAVE_LONG_DOUBLE)
fi

AC_FUNC_MMAP

dnl Handle optional features that can be enabled.
ENABLE_CFLAGS=
ENABLE_CLIBS=
ENABLE_OBS=

AC_ARG_ENABLE(netrom,
[  --enable-netrom ],
[case "${enableval}" in
yes)	enable_netrom=yes ;;
no)	enable_netrom=no ;;
*)	AC_MSG_ERROR(bad value ${enableval} given for netrom option) ;;
esac])

if test "${enable_netrom}" = "yes"; then
	ENABLE_OBS="${ENABLE_OBS} remote-nrom.o" 
fi

# start-sanitize-gm
ENABLE_GM=

AC_ARG_ENABLE(gm,
[  --enable-gm ],
[case "${enableval}" in
yes)	ENABLE_OBS="${ENABLE_OBS} gmagic.o"
	ENABLE_CFLAGS=-DGENERAL_MAGIC
	;;
no)	;;
*)	AC_MSG_ERROR(bad value ${enableval} given for gm option) ;;
esac])

# end-sanitize-gm

AC_ARG_ENABLE(sim-powerpc,
[  --enable-sim-powerpc ],
[case "${enableval}" in
yes)	powerpc_sim=yes ;;
no)	powerpc_sim=no ;;
*)	AC_MSG_ERROR(bad value ${enableval} given for sim-powerpc option) ;;
esac],[if test x"$GCC" != x""; then powerpc_sim=yes; else powerpc_sim=no; fi])

# start-sanitize-gdbtk
ENABLE_GDBTK=

AC_ARG_ENABLE(gdbtk,
[  --enable-gdbtk ],
[case "${enableval}" in
    yes)
	case "$host" in
	*go32*)
	    AC_MSG_WARN([GDB does not support GDBtk on host ${host}.  GDBtk will be disabled.])
	    enable_gdbtk=no ;;
	*)
	    enable_gdbtk=yes ;;
	esac ;;
    no)
	enable_gdbtk=no  ;;
    *)
	AC_MSG_ERROR(bad value ${enableval} given for gdbtk option) ;;
esac],
[
# Default is on for everything but go32
case "$host" in
    *go32*)
	;;
    *)
	enable_gdbtk=yes ;;
    esac
])

if test "${enable_gdbtk}" = "yes"; then

    AC_PATH_X
    AC_PATH_XTRA

    CY_AC_PATH_TCL
    CY_AC_PATH_TK

    # Look for dynamic linking libraries that Tcl might need.  This is
    # only done for Tcl 7.5 and greater.  It would be good to look for and
    # use the "configInfo" file that Tcl generates, but for now that is
    # beyond us.
    if test $tclmajor -ge 7 -a $tclminor -ge 5 ; then
       AC_CHECK_LIB(dl, main, , AC_CHECK_LIB(dld, main))
    fi

    ENABLE_GDBTK=1

    if test "x$no_x" != "xyes"; then
        if test "x$x_includes" != "x" ;
        then
            X_CFLAGS="-I$x_includes"
        else
            X_CFLAGS=""
        fi
    
        if test "x$x_libraries" != "x" ;
        then
            X_LDFLAGS="-L$x_libraries"
        else
            X_LDFLAGS=""
        fi
    
        case "$host" in
#
# gdb linked statically w/ Solaris iff GCC is used, otherwise dynamic
#
            sparc*-sun-solaris2*)
                if test "x$GCC" = "xyes";
                then
                    X_LIBS="-Wl,-Bstatic -lX11 -lXext -lX11 -Wl,-Bdynamic -ldl -lw"
                else
                    if test "x$x_libraries" != "x" ;
                    then
                        X_LDFLAGS="$X_LDFLAGS -R$x_libraries"
                    fi
                    X_LIBS="-lX11 -lXext -lX11"
                fi ;;
#
# gdb linked statically w/ SunOS or HPUX
#
            m68k-hp-hpux*|hppa*-hp-hpux*|sparc-sun-sunos*)
                if test "x$x_libraries" != "x" ;
                then
                    X_LIBS="$x_libraries/libX11.a"
                else
                    X_LIBS="/usr/lib/libX11.a"
                fi ;;
#
# default is to link dynamically
#
            *)
                X_LIBS="-lX11" ;;
        esac
    else
        X_LDLAGS=""
        X_CFLAGS=""
        X_LIBS=""
        AC_MSG_WARN([No X based programs will be built])
    fi
    
    TCL_LIBS='$(TCL) $(TK) $(X11_LDFLAGS) $(X11_LIBS)'
    ENABLE_CLIBS="${ENABLE_CLIBS} ${TCL_LIBS} -lm"
    ENABLE_OBS="${ENABLE_OBS} gdbtk.o"
fi

AC_SUBST(ENABLE_GDBTK)
AC_SUBST(X_CFLAGS)
AC_SUBST(X_LDFLAGS)
AC_SUBST(X_LIBS)
# end-sanitize-gdbtk

AC_SUBST(ENABLE_CFLAGS)
AC_SUBST(ENABLE_CLIBS)
AC_SUBST(ENABLE_OBS)

# target_subdir is used by the testsuite to find the target libraries.
target_subdir=
if test "${host}" != "${target}"; then
    target_subdir="${target_alias}/"
fi
AC_SUBST(target_subdir)

configdirs="doc testsuite"

dnl
changequote(,)dnl

# Map host cpu into the config cpu subdirectory name.
# The default is $host_cpu.

case "${host_cpu}" in

c[12])			gdb_host_cpu=convex ;;
hppa*)			gdb_host_cpu=pa ;;
i[3456]86)		gdb_host_cpu=i386 ;;
m68*)			gdb_host_cpu=m68k ;;
m88*)			gdb_host_cpu=m88k ;;
np1)			gdb_host_cpu=gould ;;
pyramid)		gdb_host_cpu=pyr ;;
powerpc*)		gdb_host_cpu=powerpc ;;
sparc64)		gdb_host_cpu=sparc ;;
*)			gdb_host_cpu=$host_cpu ;;

esac

# map host info into gdb names.

case "${host}" in

a29k-*-*)		gdb_host=ultra3 ;;

alpha-*-osf1*)		gdb_host=alpha-osf1 ;;
alpha-*-osf2*)		gdb_host=alpha-osf2 ;;
alpha-*-osf[3456789]*)	gdb_host=alpha-osf3 ;;

arm-*-*)		gdb_host=arm ;;

c[12]-*-*)		gdb_host=convex ;;

hppa*-*-bsd*)		gdb_host=hppabsd ;;
hppa*-*-hiux*)		gdb_host=hppahpux ;;
hppa*-*-hpux*)		gdb_host=hppahpux ;;
hppa*-*-osf*)		gdb_host=hppaosf ;;

i[3456]86-ncr-*)	gdb_host=ncr3000 ;;
i[3456]86-sequent-bsd*)	gdb_host=symmetry ;;  # dynix
i[3456]86-sequent-sysv4*) gdb_host=ptx4 ;;
i[3456]86-sequent-sysv*) gdb_host=ptx ;;
i[3456]86-*-aix*)	gdb_host=i386aix ;;
i[3456]86-*-bsd*)	gdb_host=i386bsd ;;
i[3456]86-*-dgux*)	gdb_host=i386dgux ;;
i[3456]86-*-freebsd*)	gdb_host=fbsd ;;
i[3456]86-*-netbsd*)	gdb_host=nbsd ;;
i[3456]86-*-go32*)	gdb_host=go32 ;;
i[3456]86-*-linux*)	gdb_host=linux ;;
i[3456]86-*-lynxos*)	gdb_host=i386lynx ;;
i[3456]86-*-mach3*)	gdb_host=i386m3 ;;
i[3456]86-*-mach*)	gdb_host=i386mach ;;
i[3456]86-*-osf1mk*)	gdb_host=osf1mk ;;
i[3456]86-*-sco3.2v4*)	gdb_host=i386sco4 ;;
i[3456]86-*-sco*)	gdb_host=i386sco ;;
i[3456]86-*-solaris*)	gdb_host=i386sol2 ;;
i[3456]86-*-sunos*)	gdb_host=sun386 ;;
i[3456]86-*-sysv3.2*)	gdb_host=i386v32 ;;
i[3456]86-*-sysv32*)	gdb_host=i386v32 ;;
i[3456]86-*-sysv4*)	gdb_host=i386v4 ;;
i[3456]86-*-unixware)	gdb_host=i386v4 ;;
i[3456]86-*-sysv*)	gdb_host=i386v ;;
i[3456]86-*-isc*)	gdb_host=i386v32 ;;
i[3456]86-*-os9k)	gdb_host=i386os9k ;;
i[3456]86-*-cygwin32)	gdb_host=cygwin32 ;;
m680[01]0-sun-sunos3*)	gdb_host=sun2os3 ;;
m680[01]0-sun-sunos4*)	gdb_host=sun2os4 ;;
m68030-sony-*)		gdb_host=news1000 ;;

m68*-altos-*)		gdb_host=altos ;;
m68*-apollo*-sysv*)	gdb_host=apollo68v ;;
m68*-apollo*-bsd*)	gdb_host=apollo68b ;;
m68*-att-*)		gdb_host=3b1 ;;
m68*-bull*-sysv*)	gdb_host=dpx2 ;;
m68*-hp-bsd*)		gdb_host=hp300bsd ;;
m68*-hp-hpux*)		gdb_host=hp300hpux ;;
m68*-isi-*)		gdb_host=isi ;;
m68*-*-lynxos*)		gdb_host=m68klynx ;;
m68*-*-netbsd*)		gdb_host=nbsd ;;
m68*-*-sysv4*)		gdb_host=m68kv4 ;;
m68*-motorola-*)	gdb_host=delta68 ;;
m68*-sony-*)		gdb_host=news ;;
m68*-sun-sunos3*)	gdb_host=sun3os3 ;;
m68*-sun-sunos4*)	gdb_host=sun3os4 ;;
m68*-sun-*)		gdb_host=sun3os4 ;;

m88*-harris-cxux*)	gdb_host=cxux ;;
m88*-motorola-sysv4*)	gdb_host=delta88v4 ;;
m88*-motorola-sysv*)	gdb_host=delta88 ;;
m88*-*-mach3*)		gdb_host=mach3 ;;
m88*-*-*)		gdb_host=m88k ;;

mips-dec-mach3*)	gdb_host=mach3 ;;
mips-dec-*)		gdb_host=decstation ;;
mips-little-*)		gdb_host=littlemips ;;
mips-sgi-irix3*)	gdb_host=irix3 ;;
mips-sgi-irix4*)	gdb_host=irix4 ;;
mips-sgi-irix5*)	gdb_host=irix5 ;;
mips-sony-*)		gdb_host=news-mips ;;
mips-*-mach3*)		gdb_host=mach3 ;;
mips-*-sysv4*)		gdb_host=mipsv4 ;;
mips-*-sysv*)		gdb_host=riscos ;;
mips-*-riscos*)		gdb_host=riscos ;;

none-*-*)		gdb_host=none ;;

np1-*-*)		gdb_host=np1 ;;

ns32k-*-mach3*)		gdb_host=mach3 ;;
ns32k-*-netbsd*)	gdb_host=nbsd ;;
ns32k-umax-*)		gdb_host=umax ;;
ns32k-utek-sysv*)	gdb_host=merlin ;;

powerpc-*-aix*)		gdb_host=aix ;;
powerpcle-*-cygwin32)	gdb_host=cygwin32 ;;
pn-*-*)			gdb_host=pn ;;

pyramid-*-*)		gdb_host=pyramid ;;

romp-*-*)		gdb_host=rtbsd ;;

rs6000-*-lynxos*)	gdb_host=rs6000lynx ;;
rs6000-*-aix4*)		gdb_host=aix4 ;;
rs6000-*-*)		gdb_host=rs6000 ;;

sparc-*-lynxos*)	gdb_host=sparclynx ;;
sparc-*-netbsd*)	gdb_host=nbsd ;;
sparc-*-solaris2*)	gdb_host=sun4sol2 ;;
sparc-*-sunos4*)	gdb_host=sun4os4 ;;
sparc-*-sunos5*)	gdb_host=sun4sol2 ;;
sparc-*-*)		gdb_host=sun4os4 ;;
sparc64-*-*)		gdb_host=sun4sol2 ;;

tahoe-*-*)		gdb_host=tahoe ;;

vax-*-bsd*)		gdb_host=vaxbsd ;;
vax-*-ultrix2*)		gdb_host=vaxult2 ;;
vax-*-ultrix*)		gdb_host=vaxult ;;

w65-*-*)		gdb_host=w65 ;;

esac


# Map target cpu into the config cpu subdirectory name.
# The default is $target_cpu.

case "${target_cpu}" in

alpha)			gdb_target_cpu=alpha ;;
c[12])			gdb_target_cpu=convex ;;
hppa*)			gdb_target_cpu=pa ;;
i[3456]86)		gdb_target_cpu=i386 ;;
m68*)			gdb_target_cpu=m68k ;;
m88*)			gdb_target_cpu=m88k ;;
mips*)			gdb_target_cpu=mips ;;
np1)			gdb_target_cpu=gould ;;
powerpc*)		gdb_target_cpu=powerpc ;;
pn)			gdb_target_cpu=gould ;;
pyramid)		gdb_target_cpu=pyr ;;
sparc*)			gdb_target_cpu=sparc ;;
*)			gdb_target_cpu=$target_cpu ;;

esac

# map target info into gdb names.

case "${target}" in

a29k-*-aout*)		gdb_target=a29k ;;
a29k-*-coff*)		gdb_target=a29k ;;
a29k-*-elf*)		gdb_target=a29k ;;
a29k-*-ebmon*)		gdb_target=a29k ;;
a29k-*-kern*)		gdb_target=a29k-kern ;;
a29k-*-none*)		gdb_target=a29k ;;
a29k-*-sym1*)		gdb_target=ultra3 ;;
a29k-*-udi*)		gdb_target=a29k-udi ;;
a29k-*-vxworks*)        gdb_target=vx29k ;;

alpha-*-osf*)		gdb_target=alpha-osf1 ;;

# start-sanitize-arc
arc-*-*)		gdb_target=arc ;;
# end-sanitize-arc

arm-*-*)		gdb_target=arm ;;

c1-*-*)			gdb_target=convex ;;
c2-*-*)			gdb_target=convex ;;

h8300-*-*)		gdb_target=h8300 ;;
h8500-*-*)		gdb_target=h8500 ;;

sh-*-*)			gdb_target=sh ;;

# start-sanitize-r16
r16-*-*)		gdb_target=r16 ;;
# end-sanitize-r16

hppa*-*-bsd*)		gdb_target=hppabsd ;;
hppa*-*-pro*)		gdb_target=hppapro ;;
hppa*-*-hpux*)		gdb_target=hppahpux ;;
hppa*-*-hiux*)		gdb_target=hppahpux ;;
hppa*-*-osf*)		gdb_target=hppaosf ;;

i[3456]86-sequent-bsd*)	gdb_target=symmetry ;;
i[3456]86-sequent-sysv4*) gdb_target=ptx4 ;;
i[3456]86-sequent-sysv*) gdb_target=ptx ;;
i[3456]86-ncr-*)	gdb_target=ncr3000 ;;
i[3456]86-*-aout*)	gdb_target=i386aout ;;
i[3456]86-*-coff*)	gdb_target=i386v ;;
i[3456]86-*-elf*)	gdb_target=i386v ;;
i[3456]86-*-aix*)	gdb_target=i386aix ;;
i[3456]86-*-bsd*)	gdb_target=i386bsd ;;
i[3456]86-*-freebsd*)	gdb_target=fbsd ;;
i[3456]86-*-netbsd*)	gdb_target=nbsd ;;
i[3456]86-*-os9k)	gdb_target=i386os9k ;;
i[3456]86-*-go32*)	gdb_target=i386aout ;;
i[3456]86-*-lynxos*)	gdb_target=i386lynx
		configdirs="${configdirs} gdbserver" ;;
i[3456]86-*-solaris*)	gdb_target=i386sol2 ;;
i[3456]86-*-sunos*)	gdb_target=sun386 ;;
i[3456]86-*-sysv4*)	gdb_target=i386v4 ;;
i[3456]86-*-sco*)	gdb_target=i386v ;;
i[3456]86-*-sysv*)	gdb_target=i386v ;;
i[3456]86-*-linux*)	gdb_target=linux ;;
i[3456]86-*-isc*)	gdb_target=i386v ;;
i[3456]86-*-mach3*)	gdb_target=i386m3 ;;
i[3456]86-*-mach*)	gdb_target=i386mach ;;
i[3456]86-*-netware*)	gdb_target=i386nw
		configdirs="${configdirs} nlm" ;;
i[3456]86-*-osf1mk*)	gdb_target=i386mk ;;
i[3456]86-*-cygwin32)	gdb_target=cygwin32  ;;
i960-*-bout*)		gdb_target=vxworks960 ;;
i960-*-coff*)		gdb_target=nindy960 ;;
i960-*-elf*)		gdb_target=nindy960 ;;

i960-*-nindy*)		gdb_target=nindy960 ;;
i960-*-vxworks*)	gdb_target=vxworks960 ;;

m68000-*-sunos3*)	gdb_target=sun2os3 ;;
m68000-*-sunos4*)	gdb_target=sun2os4 ;;

m68*-apollo*-bsd*)	gdb_target=apollo68b ;;
m68*-bull-sysv*)	gdb_target=dpx2 ;;
m68*-hp-bsd*)		gdb_target=hp300bsd ;;
m68*-hp-hpux*)		gdb_target=hp300hpux ;;
m68*-altos-*)		gdb_target=altos ;;
m68*-att-*)		gdb_target=3b1 ;;
m68*-cisco*-*)		gdb_target=cisco ;;
m68*-ericsson-*)	gdb_target=es1800 ;;
m68*-isi-*)		gdb_target=isi ;;
m68*-motorola-*)	gdb_target=delta68 ;;
m68*-netx-*)		gdb_target=vxworks68 ;;
m68*-sony-*)		gdb_target=news ;;
m68*-tandem-*)		gdb_target=st2000 ;;
m68*-rom68k-*)          gdb_target=monitor ;;
m68*-*bug-*)            gdb_target=monitor ;;
m68*-monitor-*)         gdb_target=monitor ;;
m68*-est-*)		gdb_target=monitor ;;
m68*-*-aout*)		gdb_target=monitor ;;
m68*-*-coff*)		gdb_target=monitor ;;
m68*-*-elf*)		gdb_target=monitor ;;
m68*-*-lynxos*)		gdb_target=m68klynx
		configdirs="${configdirs} gdbserver" ;;
m68*-*-netbsd*)		gdb_target=nbsd ;;
m68*-*-os68k*)		gdb_target=os68k ;;
m68*-*-sunos3*)		gdb_target=sun3os3 ;;
m68*-*-sunos4*)		gdb_target=sun3os4 ;;
m68*-*-sysv4*)		gdb_target=m68kv4 ;;
m68*-*-vxworks*)	gdb_target=vxworks68 ;;

m88*-harris-cxux*)	gdb_target=cxux ;;
m88*-motorola-sysv4*)	gdb_target=delta88v4 ;;
m88*-*-mach3*)		gdb_target=mach3 ;;
m88*-motorola-*)	gdb_target=delta88 ;;
m88*-*-*)		gdb_target=m88k ;;

mips64*-big-*)		gdb_target=bigmips64 ;;
mips*-big-*)		gdb_target=bigmips ;;
mips*-dec-mach3*)	gdb_target=mach3 ;;
mips*-dec-*)		gdb_target=decstation ;;
mips64*el-*-ecoff*)	gdb_target=embedl64 ;;
mips64*-*-ecoff*)	gdb_target=embed64 ;;
mips64*vr4300*el-*-elf*)	gdb_target=vr4300el ;;
mips64*vr4300*-*-elf*)	gdb_target=vr4300 ;;
mips64*el-*-elf*)	gdb_target=embedl64 ;;
mips64*-*-elf*)		gdb_target=embed64 ;;
mips*el-*-ecoff*)	gdb_target=embedl ;;
mips*-*-ecoff*)		gdb_target=embed ;;
# start-sanitize-gm
mips*-*-magic*)		gdb_target=embed ;;
# end-sanitize-gm
mips*el-*-elf*)		gdb_target=embedl ;;
mips*-*-elf*)		gdb_target=embed ;;
mips*-little-*)		gdb_target=littlemips ;;
mips*-sgi-irix5*)	gdb_target=irix5 ;;
mips*-sgi-*)		gdb_target=irix3 ;;
mips*-sony-*)		gdb_target=bigmips ;;
mips*-*-mach3*)		gdb_target=mach3 ;;
mips*-*-sysv4*)		gdb_target=mipsv4 ;;
mips*-*-sysv*)		gdb_target=bigmips ;;
mips*-*-riscos*)	gdb_target=bigmips ;;

none-*-*)		gdb_target=none ;;

np1-*-*)		gdb_target=np1 ;;

ns32k-*-mach3*)		gdb_target=mach3 ;;
ns32k-*-netbsd*)	gdb_target=nbsd ;;
ns32k-utek-sysv*)	gdb_target=merlin ;;
ns32k-utek-*)		gdb_target=umax ;;

pn-*-*)			gdb_target=pn ;;
powerpc-*-macos*)	gdb_target=macos ;;
powerpc-*-netware*)	gdb_target=ppc-nw
			configdirs="${configdirs} nlm" ;;

powerpc-*-aix4*)	gdb_target=aix4 ;;
powerpc-*-aix*)		gdb_target=aix ;;
powerpcle-*-cygwin32)	gdb_target=cygwin32 ;;
powerpc-*-eabi*)	if test x"$powerpc_sim" = x"yes"; then
			  gdb_target=ppc-sim
			else
			  gdb_target=ppc-eabi
			fi ;;
powerpcle-*-eabi*)	if test x"$powerpc_sim" = x"yes"; then
			  gdb_target=ppcle-sim
			else
			  gdb_target=ppcle-eabi
			fi ;;

pyramid-*-*)		gdb_target=pyramid ;;

rs6000-*-lynxos*)	gdb_target=rs6000lynx ;;
rs6000-*-aix4*)		gdb_target=aix4 ;;
rs6000-*-*)		gdb_target=rs6000 ;;

sparc-*-aout*)		gdb_target=sparc-em ;;
sparc-*-coff*)		gdb_target=sparc-em ;;
sparc-*-elf*)		gdb_target=sparc-em ;;
sparc-*-lynxos*)	gdb_target=sparclynx
		configdirs="${configdirs} gdbserver" ;;
sparc-*-netbsd*)	gdb_target=nbsd ;;
sparc-*-solaris2*)	gdb_target=sun4sol2 ;;
sparc-*-sunos4*)	gdb_target=sun4os4 ;;
sparc-*-sunos5*)	gdb_target=sun4sol2 ;;
sparc-*-vxworks*)	gdb_target=vxsparc ;;
sparc-*-*)		gdb_target=sun4os4 ;;
# Use sparc-em for sparclet for now.
sparclet-*-*)		gdb_target=sparc-em ;;
sparclite*-*-*)		gdb_target=sparclite ;;
sparc64-*-solaris2*)	gdb_target=sp64sol2 ;;
sparc64-*-*)		gdb_target=sp64 ;;

tahoe-*-*)		gdb_target=tahoe ;;

vax-*-*)		gdb_target=vax ;;

w65-*-*)		gdb_target=w65 ;;

z8k-*-coff*)		gdb_target=z8k ;;

esac

dnl
changequote([,])dnl

frags=
host_makefile_frag=${srcdir}/config/${gdb_host_cpu}/${gdb_host}.mh
if test ! -f ${host_makefile_frag}; then
AC_MSG_ERROR("*** Gdb does not support host ${host}")
fi
frags="$frags $host_makefile_frag"

target_makefile_frag=${srcdir}/config/${gdb_target_cpu}/${gdb_target}.mt
if test ! -f ${target_makefile_frag}; then
AC_MSG_ERROR("*** Gdb does not support target ${target}")
fi
frags="$frags $target_makefile_frag"

AC_SUBST_FILE(host_makefile_frag)
AC_SUBST_FILE(target_makefile_frag)
AC_SUBST(frags)

changequote(,)dnl
hostfile=`sed -n '
s/XM_FILE[ 	]*=[ 	]*\([^ 	]*\)/\1/p
' ${host_makefile_frag}`

targetfile=`sed -n '
s/TM_FILE[ 	]*=[ 	]*\([^ 	]*\)/\1/p
' ${target_makefile_frag}`

# these really aren't orthogonal true/false values of the same condition,
# but shells are slow enough that I like to reuse the test conditions
# whenever possible
if test "${target}" = "${host}"; then
nativefile=`sed -n '
s/NAT_FILE[ 	]*=[ 	]*\([^ 	]*\)/\1/p
' ${host_makefile_frag}`
else
# GDBserver is only useful in a "native" enviroment
configdirs=`echo $configdirs | sed 's/gdbserver//'`
fi
changequote([,])

# If hostfile (XM_FILE) and/or targetfile (TM_FILE) and/or nativefile
# (NAT_FILE) is not set in config/*/*.m[ht] files, we don't make the
# corresponding links.  But we have to remove the xm.h files and tm.h
# files anyway, e.g. when switching from "configure host" to
# "configure none".

files=
links=
rm -f xm.h
if test "${hostfile}" != ""; then
files="${files} config/${gdb_host_cpu}/${hostfile}"
links="${links} xm.h"
fi
rm -f tm.h
if test "${targetfile}" != ""; then
files="${files} config/${gdb_target_cpu}/${targetfile}"
links="${links} tm.h"
fi
rm -f nm.h
if test "${nativefile}" != ""; then
files="${files} config/${gdb_host_cpu}/${nativefile}"
links="${links} nm.h"
else
# A cross-only configuration.
files="${files} config/nm-empty.h"
links="${links} nm.h"
fi
# start-sanitize-gdbtk

# Make it possible to use the GUI without doing a full install
if test "${enable_gdbtk}" = "yes" -a ! -f gdbtk.tcl ; then
files="${files} gdbtk.tcl"
links="${links} gdbtk.tcl"
fi
# end-sanitize-gdbtk

AC_LINK_FILES($files, $links)

AC_CONFIG_SUBDIRS($configdirs)
AC_OUTPUT(Makefile, 
[
dnl Autoconf doesn't provide a mechanism for modifying definitions 
dnl provided by makefile fragments.
dnl
if test "${nativefile}" = ""; then
sed -e '/^NATDEPFILES= /s//# NATDEPFILES= /' \
	< Makefile > Makefile.tem
mv -f Makefile.tem Makefile
fi

changequote(,)dnl
sed -e '/^TM_FILE[ 	]*=/s,^TM_FILE[ 	]*=[ 	]*,&config/'"${gdb_target_cpu}"'/,
/^XM_FILE[ 	]*=/s,^XM_FILE[ 	]*=[ 	]*,&config/'"${gdb_host_cpu}"'/,
/^NAT_FILE[ 	]*=/s,^NAT_FILE[ 	]*=[ 	]*,&config/'"${gdb_host_cpu}"'/,' <Makefile >Makefile.tmp
mv -f Makefile.tmp Makefile
changequote([,])dnl

case ${srcdir} in
.)
;;
*)
grep "source ${srcdir}/.gdbinit" .gdbinit >/dev/null 2>/dev/null || \
echo "source ${srcdir}/.gdbinit" >> .gdbinit
esac
],
[
gdb_host_cpu=$gdb_host_cpu
gdb_target_cpu=$gdb_target_cpu
nativefile=$nativefile
])

exit 0