diff options
| -rw-r--r-- | ext/raindrops/extconf.rb | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/ext/raindrops/extconf.rb b/ext/raindrops/extconf.rb index 09d6e36..fc2b3fd 100644 --- a/ext/raindrops/extconf.rb +++ b/ext/raindrops/extconf.rb @@ -1,6 +1,5 @@ require 'mkmf' -# FIXME: test for GCC __sync_XXX builtins here, somehow... have_func('mmap', 'sys/mman.h') or abort 'mmap() not found' have_func('munmap', 'sys/mman.h') or abort 'munmap() not found' @@ -18,6 +17,13 @@ int main(int argc, char * const argv[]) { SRC if try_run(src) + # some systems target GCC for i386 and don't get the atomic builtins + # when building shared objects + arch = `#{CONFIG['CC']} -dumpmachine`.split(/-/)[0] + if arch == "i386" && $CFLAGS !~ /\b-march=/ + $CFLAGS += " -march=i486 " + end + $defs.push(format("-DHAVE_GCC_ATOMIC_BUILTINS")) true else |