don't try to fix WPILib, just hack around it like they do...

Change-Id: I4e5030c98306181f81be594eee26391a06c2bb95
diff --git a/aos/build/externals.gyp b/aos/build/externals.gyp
index 35d271d..e14850b 100644
--- a/aos/build/externals.gyp
+++ b/aos/build/externals.gyp
@@ -38,8 +38,9 @@
         '<@(header_dirs)'
       ],
       'cflags': [
-        '-Wno-error=unused-parameter',
-        '-Wno-error=switch-enum',
+        '-Wno-error',
+        '-fno-strict-aliasing',
+        '-O0',
       ],
       'sources': [
         '<!@(ls <(allwpilib)/wpilibc/wpilibC++/src/*.cpp)',