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| author | Erik de Castro Lopo <erikd@mega-nerd.com> | 2014-07-27 10:08:44 +1000 |
|---|---|---|
| committer | Erik de Castro Lopo <erikd@mega-nerd.com> | 2014-07-27 10:24:44 +1000 |
| commit | f73c82a73d47770283270692901987c509b8266e (patch) | |
| tree | 1a834c4bfa6a036fbe879ed8c1e655615f477251 /configure.ac | |
| parent | 221bdc409d811b7b432c41e9800149c4cdc446ad (diff) | |
| download | flac-f73c82a73d47770283270692901987c509b8266e.tar.gz | |
configure.ac : Erase default -O2 when setting -O3.
Previously CFLAGS had a -O3 at the start and a -O2 at the end. According
to the GCC docs:
https://gcc.gnu.org/onlinedocs/gcc-4.9.1/gcc/Optimize-Options.html
"If you use multiple -O options, with or without level numbers,
the last such option is the one that is effective" which means that
GCC doesn't try to use SIMD to vectorize the code, etc."
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/configure.ac b/configure.ac index c81c4d38..7d58f025 100644 --- a/configure.ac +++ b/configure.ac @@ -379,16 +379,18 @@ fi if test "x$debug" = xtrue; then CPPFLAGS="-DDEBUG $CPPFLAGS" + CFLAGS=$(echo "$CFLAGS" | sed 's/-g//') CFLAGS="-g $CFLAGS" else CPPFLAGS="-DNDEBUG $CPPFLAGS" - CFLAGS="-O3 -funroll-loops -Wall -W -Winline $CFLAGS" + CFLAGS=$(echo "$CFLAGS" | sed 's/-O2//;s/-g//') + CFLAGS="-O3 -funroll-loops $CFLAGS" fi XIPH_GCC_VERSION if test x$ac_cv_c_compiler_gnu = xyes ; then - CFLAGS="$CFLAGS -Wall -Wextra -Wstrict-prototypes -Wmissing-prototypes -Waggregate-return -Wcast-align -Wnested-externs -Wshadow -Wundef -Wmissing-declarations -Wunreachable-code " # -Wcast-qual -Wbad-function-cast -Wwrite-strings -Winline -Wconversion + CFLAGS="$CFLAGS -Wall -Wextra -Wstrict-prototypes -Wmissing-prototypes -Waggregate-return -Wcast-align -Wnested-externs -Wshadow -Wundef -Wmissing-declarations -Wunreachable-code -Winline " # -Wcast-qual -Wbad-function-cast -Wwrite-strings -Wconversion CXXFLAGS="$CXXFLAGS -Wall -Wextra -Wcast-align -Wshadow -Wwrite-strings -Wctor-dtor-privacy -Wnon-virtual-dtor -Wreorder -Wsign-promo -Wundef -Wunreachable-code " # -Wcast-qual -Wbad-function-cast -Wwrite-strings -Woverloaded-virtual -Wmissing-declarations XIPH_ADD_CFLAGS([-Wdeclaration-after-statement]) |