diff options
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/configure.in b/configure.in index b627a676ec..e5dff11c71 100644 --- a/configure.in +++ b/configure.in @@ -165,6 +165,14 @@ alpha*) ;; esac +dnl activate some gcc specific optimizations for gcc >= 4 +if test "$GCC" = "yes"; then + GCC_MAJOR_VERSION=`$CC --version | $SED -n '1s/[[^0-9]]*\([[0-9]]\+\)\.[[0-9]]\+\..*/\1/;1p'` + if test $GCC_MAJOR_VERSION -ge 4; then + CFLAGS="$CFLAGS -fvisibility=hidden" + fi +fi + case $host_alias in *solaris*) CPPFLAGS="$CPPFLAGS -D_POSIX_PTHREAD_SEMANTICS" |