ffmpeg | branch: master | J. Dekker <j...@itanimul.li> | Wed Mar 27 05:53:16 2024 +0100| [3090106635b32ee042fe3bb914b7c7863daa1d11] | committer: J. Dekker
configure: simplify bigendian check The preferred way to use LTO is --enable-lto but often times packagers still end up with -flto in cflags for various reasons. Using grep on binary object files is brittle and relies on specific object representation, which in the case of LLVM bitcode, debug information or other intermediary formats can fail silently. This patch changes the check to a more commonly used define for GCC style compilers. More checks may be needed to cover other potential compilers that don't use the __BYTE_ORDER__ define. Signed-off-by: J. Dekker <j...@itanimul.li> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=3090106635b32ee042fe3bb914b7c7863daa1d11 --- configure | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/configure b/configure index f511fbae49..7c22772485 100755 --- a/configure +++ b/configure @@ -6120,11 +6120,7 @@ extern_prefix=${sym%%ff_extern*} check_cc pragma_deprecated "" '_Pragma("GCC diagnostic push") _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")' -# The global variable ensures the bits appear unchanged in the object file. -test_cc <<EOF || die "endian test failed" -unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E'; -EOF -od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian +test_cpp_condition stdlib.h "defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)" && enable bigendian check_cc const_nan math.h "struct { double d; } static const bar[] = { { NAN } }" _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
