ffmpeg | branch: master | Shiyou Yin <yinshiyou...@loongson.cn> | Fri Aug 24 17:22:12 2018 +0800| [e13e52fd0de68f2805e2e8a83d00ee28f9000c8a] | committer: Michael Niedermayer
configure: [loongson] revert no-expensive-optimizations Add gcc version check before add -fno-expensive-optimizations flag. Only when gcc version is lower than 5.3.0, this flag is needed. More bug info see: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67736 https://gcc.gnu.org/ml/gcc-patches/2012-05/msg00401.html Signed-off-by: Shiyou Yin <yinshiyou...@loongson.cn> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=e13e52fd0de68f2805e2e8a83d00ee28f9000c8a --- configure | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/configure b/configure index 135e8cb789..3cf9412947 100755 --- a/configure +++ b/configure @@ -4819,15 +4819,24 @@ elif enabled mips; then disable mipsfpu disable mipsdsp disable mipsdspr2 + # When gcc version less than 5.3.0, add -fno-expensive-optimizations flag. + if [ $cc == gcc ]; then + gcc_version=$(gcc -dumpversion) + if [ "$(echo "$gcc_version 5.3.0" | tr " " "\n" | sort -rV | head -n 1)" == "$gcc_version" ]; then + expensive_optimization_flag="" + else + expensive_optimization_flag="-fno-expensive-optimizations" + fi + fi case $cpu in loongson3*) - cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations" + cpuflags="-march=loongson3a -mhard-float $expensive_optimization_flag" ;; loongson2e) - cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations" + cpuflags="-march=loongson2e -mhard-float $expensive_optimization_flag" ;; loongson2f) - cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations" + cpuflags="-march=loongson2f -mhard-float $expensive_optimization_flag" ;; esac ;; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
