diff options
Diffstat (limited to 'build/configure.ac.warnings')
| -rw-r--r-- | build/configure.ac.warnings | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/build/configure.ac.warnings b/build/configure.ac.warnings index f984eb29c..a72d9484a 100644 --- a/build/configure.ac.warnings +++ b/build/configure.ac.warnings @@ -38,13 +38,18 @@ dnl options. Namely, the following: dnl -flto working really needs a test link, not just a compile -safe_MAYBE_WARN="$MAYBE_WARN" -MAYBE_WARN="$MAYBE_WARN -flto" -AC_TRY_LINK([],[ +AC_ARG_ENABLE(lto, + AS_HELP_STRING([--disable-lto], + [Do not try to use Link-Time Optimization])) +if test "x$enable_lto" != "xno"; then + safe_MAYBE_WARN="$MAYBE_WARN" + MAYBE_WARN="$MAYBE_WARN -flto" + AC_TRY_LINK([],[ int main(int argc, char **argv) { return 0; } -],[],[ + ],[],[ MAYBE_WARN="$safe_MAYBE_WARN" -]) + ]) +fi MAYBE_WARN="$MAYBE_WARN -fno-strict-aliasing -fno-common" |