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15b2e90fbc
git-svn-id: https://protobuf-c.googlecode.com/svn/trunk@72 00440858-1255-0410-a3e6-75ea37f81c3a
47 lines
1.5 KiB
Plaintext
47 lines
1.5 KiB
Plaintext
AC_INIT(src/google/protobuf-c/protobuf-c.h)
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PROTOBUF_C_VERSION=0.5
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AM_INIT_AUTOMAKE(protobuf-c, $PROTOBUF_C_VERSION)
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PACKAGE=protobuf-c
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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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AC_PATH_PROG(PROTOC, protoc)
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AC_CHECK_HEADERS(inttypes.h)
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dnl ------ define IS_LITTLE_ENDIAN ------
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knows_endianness=0
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AC_CHECK_HEADERS([endian.h], [has_endian_h=1; knows_endianness=1], [has_endian_h=0])
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if test $knows_endianness = 1 ; then
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AC_TRY_COMPILE([#include <endian.h>], [
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switch (1) { case __LITTLE_ENDIAN: break;
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case __BYTE_ORDER: break; } ],
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[is_little_endian=0], [is_little_endian=1])
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else
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AC_CHECK_HEADERS([mach/endian.h], [has_mach_endian_h=1; knows_endianness=1], [has_mach_endian_h=0])
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AC_TRY_COMPILE([#include <mach/endian.h>],[
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switch (1) { case __LITTLE_ENDIAN: break;
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case __BYTE_ORDER: break; }
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],
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[is_little_endian=0], [is_little_endian=1])
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if test $knows_endianness = 0; then
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AC_MSG_CHECKING([for little-endianness via runtime check])
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AC_RUN_IFELSE([#include <inttypes.h>
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int main() {
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uint32_t v = 0x01020304;
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return memcmp (&v, "\4\3\2\1", 4) == 0 ? 0 : 1;
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}
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], [is_little_endian=1; result=yes], [is_little_endian=0; result=no])
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AC_MSG_RESULT($result)
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fi
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fi
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if test $is_little_endian = 1; then
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echo "Your system IS little-endian" 1>&2
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else
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echo "Your system IS NOT little-endian" 1>&2
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fi
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AC_DEFINE_UNQUOTED(IS_LITTLE_ENDIAN, $is_little_endian)
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AC_OUTPUT( Makefile src/Makefile src/test/Makefile pkgwriteinfo )
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