diff --git a/AMBuildScript b/AMBuildScript
index 4773b37..db79fdf 100644
--- a/AMBuildScript
+++ b/AMBuildScript
@@ -204,10 +204,12 @@ class MMSConfig(object):
       elif cxx.behavior == 'msvc':
         cfg.cflags += ['/Od', '/RTC1']
 
+    # Don't omit the frame pointer.
     # This needs to be after our optimization flags which could otherwise disable it.
-    if cxx.name == 'msvc':
-      # Don't omit the frame pointer.
-      cfg.cflags += ['/Oy-']
+    if cxx.behavior == 'gcc':
+      cxx.cflags += ['-fno-omit-frame-pointer']
+    elif cxx.behavior == 'msvc':
+      cxx.cflags += ['/Oy-']
 
     # Platform-specifics
     if builder.target_platform == 'linux':