mirror of
https://github.com/msgpack/msgpack-c.git
synced 2025-03-19 21:18:23 +01:00
44 lines
1.0 KiB
Plaintext
44 lines
1.0 KiB
Plaintext
AC_INIT(object.cpp)
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AC_CONFIG_AUX_DIR(ac)
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AM_INIT_AUTOMAKE(msgpack, 0.4.3)
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AC_CONFIG_HEADER(config.h)
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AC_SUBST(CFLAGS)
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CFLAGS="-O4 -Wall $CFLAGS"
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AC_SUBST(CXXFLAGS)
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CXXFLAGS="-O4 -Wall $CXXFLAGS"
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AC_PROG_CC
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AC_PROG_CXX
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AC_PROG_LIBTOOL
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AM_PROG_AS
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AM_PROG_CC_C_O
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AC_LANG_PUSH([C++])
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AC_CHECK_HEADERS(tr1/unordered_map)
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AC_CHECK_HEADERS(tr1/unordered_set)
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AC_LANG_POP([C++])
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AC_CACHE_CHECK([for __sync_* atomic operations], msgpack_cv_atomic_ops, [
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AC_TRY_LINK([
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int atomic_sub(int i) { return __sync_sub_and_fetch(&i, 1); }
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int atomic_add(int i) { return __sync_add_and_fetch(&i, 1); }
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], [], msgpack_cv_atomic_ops="yes")
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])
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if test "$msgpack_cv_atomic_ops" != "yes"; then
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AC_MSG_ERROR([__sync_* atomic operations are not supported.
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Note that gcc < 4.1 is not supported.
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If you are using gcc >= 4.1 and the default target CPU architecture is "i386", try to
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add CFLAGS="--march=i686" and CXXFLAGS="-march=i686" options to ./configure as follows:
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$ ./configure CFLAGS="-march=i686" CXXFLAGS="-march=i686"
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])
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fi
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AC_OUTPUT([Makefile])
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