tmate/msgpack/configure.in

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2013-06-10 07:22:22 +02:00
AC_INIT(src/object.cpp)
AC_CONFIG_AUX_DIR(ac)
AM_INIT_AUTOMAKE(msgpack, 0.5.7)
AC_CONFIG_HEADER(config.h)
AC_SUBST(CFLAGS)
CFLAGS="-O3 -Wall $CFLAGS"
AC_SUBST(CXXFLAGS)
CXXFLAGS="-O3 -Wall $CXXFLAGS"
AC_PROG_CC
AC_MSG_CHECKING([if C++ API is enabled])
AC_ARG_ENABLE(cxx,
AS_HELP_STRING([--disable-cxx],
[don't build C++ API]) ) #'
AC_MSG_RESULT([$enable_cxx])
if test "$enable_cxx" != "no"; then
AC_PROG_CXX
AM_PROG_CC_C_O
fi
AM_CONDITIONAL(ENABLE_CXX, test "$enable_cxx" != "no")
AC_PROG_LIBTOOL
AM_PROG_AS
AC_MSG_CHECKING([if debug option is enabled])
AC_ARG_ENABLE(debug,
AS_HELP_STRING([--disable-debug],
[disable assert macros and omit -g option]) )
AC_MSG_RESULT([$enable_debug])
if test "$enable_debug" != "no"; then
CXXFLAGS="$CXXFLAGS -g"
CFLAGS="$CFLAGS -g"
else
CXXFLAGS="$CXXFLAGS -DNDEBUG"
CFLAGS="$CFLAGS -DNDEBUG"
fi
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); }
], [atomic_sub(1); atomic_add(1);], msgpack_cv_atomic_ops="yes")
])
if test "$msgpack_cv_atomic_ops" != "yes"; then
if test "$enable_cxx" = "no"; then
AC_MSG_ERROR([__sync_* atomic operations are not found. Try to enable C++ support.
If you are using gcc >= 4.1 and the default target CPU architecture is "i386", try to
add CFLAGS="-march=i686" and CXXFLAGS="-march=i686" options to ./configure as follows:
$ ./configure CFLAGS="-march=i686" CXXFLAGS="-march=i686"
])
fi
AC_LANG_PUSH([C++])
AC_CACHE_CHECK([for __gnu_cxx::__exchange_and_add], msgpack_cv_gcc_cxx_atomic_ops, [
AC_TRY_LINK([
#include <bits/atomicity.h>
int atomic_sub(int i) { return __gnu_cxx::__exchange_and_add(&i, -1) - 1; }
int atomic_add(int i) { return __gnu_cxx::__exchange_and_add(&i, 1) + 1; }
], [atomic_sub(1); atomic_add(1);], msgpack_cv_gcc_cxx_atomic_ops="yes")
])
AC_LANG_POP([C++])
if test "$msgpack_cv_gcc_cxx_atomic_ops" != "yes"; then
AC_MSG_ERROR([__sync_* atomic operations nor __gnu_cxx::__exchange_and_add are not found.
If you are using gcc >= 4.1 and the default target CPU architecture is "i386", try to
add CFLAGS="-march=i686" and CXXFLAGS="-march=i686" options to ./configure as follows:
$ ./configure CFLAGS="-march=i686" CXXFLAGS="-march=i686"
])
else
enable_gcc_cxx_atomic=yes
fi
fi
AM_CONDITIONAL(ENABLE_GCC_CXX_ATOMIC, test "$enable_gcc_cxx_atomic" = "yes")
major=`echo $VERSION | sed 's/\([[0-9]]*\)\.\([[0-9]]*\).*/\1/'`
minor=`echo $VERSION | sed 's/\([[0-9]]*\)\.\([[0-9]]*\).*/\2/'`
AC_SUBST(VERSION_MAJOR, $major)
AC_SUBST(VERSION_MINOR, $minor)
AC_OUTPUT([Makefile
msgpack.pc
src/Makefile
src/msgpack/version.h
test/Makefile])