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configure: Use -fno-builtin-memcmp.

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Issue spotted by Adam Jackson <ajax at redhat.com>.

http://lists.freedesktop.org/archives/mesa-dev/2011-June/009077.html
This commit is contained in:
José Fonseca 2011-10-14 18:28:55 +01:00
parent e1e03ce492
commit 1448bdf1c0
1 changed files with 8 additions and 0 deletions
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8
configure.ac
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@ -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