msgpack/cpp/configure.in
2010-04-18 00:08:03 +09:00

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AC_INIT(object.cpp)
AC_CONFIG_AUX_DIR(ac)
AM_INIT_AUTOMAKE(msgpack, 0.4.3)
AC_CONFIG_HEADER(config.h)
AC_SUBST(CFLAGS)
CFLAGS="-O4 -Wall $CFLAGS"
AC_SUBST(CXXFLAGS)
CXXFLAGS="-O4 -Wall $CXXFLAGS"
AC_PROG_CC
AC_PROG_CXX
AC_PROG_LIBTOOL
AM_PROG_AS
AM_PROG_CC_C_O
AC_LANG_PUSH([C++])
AC_CHECK_HEADERS(tr1/unordered_map)
AC_CHECK_HEADERS(tr1/unordered_set)
AC_LANG_POP([C++])
AC_CACHE_CHECK([for __sync_* atomic operations], msgpack_cv_atomic_ops, [
AC_TRY_LINK([
int atomic_sub(int i) { return __sync_sub_and_fetch(&i, 1); }
int atomic_add(int i) { return __sync_add_and_fetch(&i, 1); }
], [], msgpack_cv_atomic_ops="yes")
])
if test "$msgpack_cv_atomic_ops" != "yes"; then
AC_MSG_ERROR([__sync_* atomic operations are not supported.
Note that gcc < 4.1 is not supported.
If you are using gcc >= 4.1 and the default target CPU architecture is "i386", try to
add CFLAGS="--march=i686" and CXXFLAGS="-march=i668" options to ./configure as follows:
$ ./configure CFLAGS="-march=i686" CXXFLAGS="-march=i686"
])
fi
AC_OUTPUT([Makefile])