diff options
| author | José Fonseca <[email protected]> | 2011-10-14 18:28:55 +0100 |
|---|---|---|
| committer | José Fonseca <[email protected]> | 2011-10-16 16:11:46 +0100 |
| commit | 1448bdf1c0995e3ac2e0f97c51e5e2d73eded8e0 (patch) | |
| tree | a6be1da566049ce3959b0f31e04f3df7ad410bde /configure.ac | |
| parent | e1e03ce4928edf4ea0ef43d853cb869f70b126aa (diff) | |
configure: Use -fno-builtin-memcmp.
Issue spotted by Adam Jackson <ajax at redhat.com>.
http://lists.freedesktop.org/archives/mesa-dev/2011-June/009077.html
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 49e81ad17c6..ae7b36b85ce 100644 --- a/configure.ac +++ b/configure.ac @@ -172,6 +172,10 @@ if test "x$GCC" = xyes; then # Work around aliasing bugs - developers should comment this out CFLAGS="$CFLAGS -fno-strict-aliasing" + + # gcc's builtin memcmp is slower than glibc's + # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43052 + CFLAGS="$CFLAGS -fno-builtin-memcmp" fi if test "x$GXX" = xyes; then CXXFLAGS="$CXXFLAGS -Wall" @@ -191,6 +195,10 @@ if test "x$GXX" = xyes; then # Work around aliasing bugs - developers should comment this out CXXFLAGS="$CXXFLAGS -fno-strict-aliasing" + + # gcc's builtin memcmp is slower than glibc's + # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43052 + CXXFLAGS="$CXXFLAGS -fno-builtin-memcmp" fi dnl even if the compiler appears to support it, using visibility attributes isn't |