: ${CFLAGS="-g"}
LT_INIT
-dnl make the compilation flags quiet unless V=1 is used
+# Make the compilation flags quiet unless V=1 is used.
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
PKG_PROG_PKG_CONFIG
if test x$cross_compiling != xyes; then
AC_PATH_PROG([BREW],brew,)
if test x$BREW != x; then
- dnl These Homebrew packages may be keg-only, meaning that they won't be found
- dnl in expected paths because they may conflict with system files. Ask
- dnl Homebrew where each one is located, then adjust paths accordingly.
+ # These Homebrew packages may be keg-only, meaning that they won't be found
+ # in expected paths because they may conflict with system files. Ask
+ # Homebrew where each one is located, then adjust paths accordingly.
openssl_prefix=`$BREW --prefix openssl 2>/dev/null`
gmp_prefix=`$BREW --prefix gmp 2>/dev/null`
valgrind_prefix=`$BREW --prefix valgrind 2>/dev/null`
fi
else
AC_PATH_PROG([PORT],port,)
- dnl if homebrew isn't installed and macports is, add the macports default paths
- dnl as a last resort.
+ # If homebrew isn't installed and macports is, add the macports default paths
+ # as a last resort.
if test x$PORT != x; then
CPPFLAGS="$CPPFLAGS -isystem /opt/local/include"
LDFLAGS="$LDFLAGS -L/opt/local/lib"
CFLAGS="$saved_CFLAGS"
])
+###
+### Define config arguments
+###
+
AC_ARG_ENABLE(benchmark,
AS_HELP_STRING([--enable-benchmark],[compile benchmark [default=yes]]),
[use_benchmark=$enableval],
[use_external_default_callbacks=$enableval],
[use_external_default_callbacks=no])
-dnl Test-only override of the (autodetected by the C code) "widemul" setting.
-dnl Legal values are int64 (for [u]int64_t), int128 (for [unsigned] __int128), and auto (the default).
+# Test-only override of the (autodetected by the C code) "widemul" setting.
+# Legal values are int64 (for [u]int64_t), int128 (for [unsigned] __int128), and auto (the default).
AC_ARG_WITH([test-override-wide-multiply], [] ,[set_widemul=$withval], [set_widemul=auto])
AC_ARG_WITH([bignum], [AS_HELP_STRING([--with-bignum=gmp|no|auto],
)],
[req_valgrind=$withval], [req_valgrind=auto])
+###
+### Handle config options (except for modules)
+###
+
if test x"$req_valgrind" = x"no"; then
enable_valgrind=no
else
CFLAGS="-O2 $CFLAGS"
fi
-if test x"$use_ecmult_static_precomputation" != x"no"; then
- # Temporarily switch to an environment for the native compiler
- save_cross_compiling=$cross_compiling
- cross_compiling=no
- SAVE_CC="$CC"
- CC="$CC_FOR_BUILD"
- SAVE_CFLAGS="$CFLAGS"
- CFLAGS="$CFLAGS_FOR_BUILD"
- SAVE_CPPFLAGS="$CPPFLAGS"
- CPPFLAGS="$CPPFLAGS_FOR_BUILD"
- SAVE_LDFLAGS="$LDFLAGS"
- LDFLAGS="$LDFLAGS_FOR_BUILD"
-
- warn_CFLAGS_FOR_BUILD="-Wall -Wextra -Wno-unused-function"
- saved_CFLAGS="$CFLAGS"
- CFLAGS="$warn_CFLAGS_FOR_BUILD $CFLAGS"
- AC_MSG_CHECKING([if native ${CC_FOR_BUILD} supports ${warn_CFLAGS_FOR_BUILD}])
- AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])],
- [ AC_MSG_RESULT([yes]) ],
- [ AC_MSG_RESULT([no])
- CFLAGS="$saved_CFLAGS"
- ])
-
- AC_MSG_CHECKING([for working native compiler: ${CC_FOR_BUILD}])
- AC_RUN_IFELSE(
- [AC_LANG_PROGRAM([], [])],
- [working_native_cc=yes],
- [working_native_cc=no],[:])
-
- CFLAGS_FOR_BUILD="$CFLAGS"
-
- # Restore the environment
- cross_compiling=$save_cross_compiling
- CC="$SAVE_CC"
- CFLAGS="$SAVE_CFLAGS"
- CPPFLAGS="$SAVE_CPPFLAGS"
- LDFLAGS="$SAVE_LDFLAGS"
-
- if test x"$working_native_cc" = x"no"; then
- AC_MSG_RESULT([no])
- set_precomp=no
- m4_define([please_set_for_build], [Please set CC_FOR_BUILD, CFLAGS_FOR_BUILD, CPPFLAGS_FOR_BUILD, and/or LDFLAGS_FOR_BUILD.])
- if test x"$use_ecmult_static_precomputation" = x"yes"; then
- AC_MSG_ERROR([native compiler ${CC_FOR_BUILD} does not produce working binaries. please_set_for_build])
- else
- AC_MSG_WARN([Disabling statically generated ecmult table because the native compiler ${CC_FOR_BUILD} does not produce working binaries. please_set_for_build])
- fi
- else
- AC_MSG_RESULT([yes])
- set_precomp=yes
- fi
-else
- set_precomp=no
-fi
-
if test x"$req_asm" = x"auto"; then
SECP_64BIT_ASM_CHECK
if test x"$has_64bit_asm" = x"yes"; then
esac
fi
-# select assembly optimization
+# Select assembly optimization
use_external_asm=no
case $set_asm in
;;
esac
-# select wide multiplication implementation
+if test x"$use_external_asm" = x"yes"; then
+ AC_DEFINE(USE_EXTERNAL_ASM, 1, [Define this symbol if an external (non-inline) assembly implementation is used])
+fi
+
+
+# Select wide multiplication implementation
case $set_widemul in
int128)
AC_DEFINE(USE_FORCE_WIDEMUL_INT128, 1, [Define this symbol to force the use of the (unsigned) __int128 based wide multiplication implementation])
;;
esac
-# select bignum implementation
+# Select bignum implementation
case $set_bignum in
gmp)
AC_DEFINE(HAVE_LIBGMP, 1, [Define this symbol if libgmp is installed])
;;
esac
-#set ecmult window size
+# Set ecmult window size
if test x"$req_ecmult_window" = x"auto"; then
set_ecmult_window=15
else
;;
esac
-#set ecmult gen precision
+# Set ecmult gen precision
if test x"$req_ecmult_gen_precision" = x"auto"; then
set_ecmult_gen_precision=4
else
SECP_INCLUDES="$SECP_INCLUDES $VALGRIND_CPPFLAGS"
fi
+# Handle static precomputation (after everything which modifies CFLAGS and friends)
+if test x"$use_ecmult_static_precomputation" != x"no"; then
+ # Temporarily switch to an environment for the native compiler
+ save_cross_compiling=$cross_compiling
+ cross_compiling=no
+ SAVE_CC="$CC"
+ CC="$CC_FOR_BUILD"
+ SAVE_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS_FOR_BUILD"
+ SAVE_CPPFLAGS="$CPPFLAGS"
+ CPPFLAGS="$CPPFLAGS_FOR_BUILD"
+ SAVE_LDFLAGS="$LDFLAGS"
+ LDFLAGS="$LDFLAGS_FOR_BUILD"
+
+ warn_CFLAGS_FOR_BUILD="-Wall -Wextra -Wno-unused-function"
+ saved_CFLAGS="$CFLAGS"
+ CFLAGS="$warn_CFLAGS_FOR_BUILD $CFLAGS"
+ AC_MSG_CHECKING([if native ${CC_FOR_BUILD} supports ${warn_CFLAGS_FOR_BUILD}])
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])],
+ [ AC_MSG_RESULT([yes]) ],
+ [ AC_MSG_RESULT([no])
+ CFLAGS="$saved_CFLAGS"
+ ])
+
+ AC_MSG_CHECKING([for working native compiler: ${CC_FOR_BUILD}])
+ AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM([], [])],
+ [working_native_cc=yes],
+ [working_native_cc=no],[:])
+
+ CFLAGS_FOR_BUILD="$CFLAGS"
+
+ # Restore the environment
+ cross_compiling=$save_cross_compiling
+ CC="$SAVE_CC"
+ CFLAGS="$SAVE_CFLAGS"
+ CPPFLAGS="$SAVE_CPPFLAGS"
+ LDFLAGS="$SAVE_LDFLAGS"
+
+ if test x"$working_native_cc" = x"no"; then
+ AC_MSG_RESULT([no])
+ set_precomp=no
+ m4_define([please_set_for_build], [Please set CC_FOR_BUILD, CFLAGS_FOR_BUILD, CPPFLAGS_FOR_BUILD, and/or LDFLAGS_FOR_BUILD.])
+ if test x"$use_ecmult_static_precomputation" = x"yes"; then
+ AC_MSG_ERROR([native compiler ${CC_FOR_BUILD} does not produce working binaries. please_set_for_build])
+ else
+ AC_MSG_WARN([Disabling statically generated ecmult table because the native compiler ${CC_FOR_BUILD} does not produce working binaries. please_set_for_build])
+ fi
+ else
+ AC_MSG_RESULT([yes])
+ set_precomp=yes
+ fi
+else
+ set_precomp=no
+fi
+
if test x"$set_precomp" = x"yes"; then
AC_DEFINE(USE_ECMULT_STATIC_PRECOMPUTATION, 1, [Define this symbol to use a statically generated ecmult table])
fi
+###
+### Handle module options
+###
+
if test x"$enable_module_ecdh" = x"yes"; then
AC_DEFINE(ENABLE_MODULE_ECDH, 1, [Define this symbol to enable the ECDH module])
fi
AC_DEFINE(ENABLE_MODULE_EXTRAKEYS, 1, [Define this symbol to enable the extrakeys module])
fi
-if test x"$use_external_asm" = x"yes"; then
- AC_DEFINE(USE_EXTERNAL_ASM, 1, [Define this symbol if an external (non-inline) assembly implementation is used])
-fi
-
if test x"$use_external_default_callbacks" = x"yes"; then
AC_DEFINE(USE_EXTERNAL_DEFAULT_CALLBACKS, 1, [Define this symbol if an external implementation of the default callbacks is used])
fi
+###
+### Check for --enable-experimental if necessary
+###
+
if test x"$enable_experimental" = x"yes"; then
AC_MSG_NOTICE([******])
AC_MSG_NOTICE([WARNING: experimental build])
fi
fi
+###
+### Generate output
+###
+
AC_CONFIG_HEADERS([src/libsecp256k1-config.h])
AC_CONFIG_FILES([Makefile libsecp256k1.pc])
AC_SUBST(SECP_INCLUDES)
AM_CONDITIONAL([USE_EXTERNAL_ASM], [test x"$use_external_asm" = x"yes"])
AM_CONDITIONAL([USE_ASM_ARM], [test x"$set_asm" = x"arm"])
-dnl make sure nothing new is exported so that we don't break the cache
+# Make sure nothing new is exported so that we don't break the cache.
PKGCONFIG_PATH_TEMP="$PKG_CONFIG_PATH"
unset PKG_CONFIG_PATH
PKG_CONFIG_PATH="$PKGCONFIG_PATH_TEMP"
echo " bignum = $set_bignum"
echo " ecmult window size = $set_ecmult_window"
echo " ecmult gen prec. bits = $set_ecmult_gen_precision"
-dnl Hide test-only options unless they're used.
+# Hide test-only options unless they're used.
if test x"$set_widemul" != xauto; then
echo " wide multiplication = $set_widemul"
fi
projects / secp256k1.git / commitdiff