1 files changed, 5 insertions, 0 deletions
diff --git a/Library/Formula/flac.rb b/Library/Formula/flac.rb
index d13257184..7813883e5 100644
--- a/Library/Formula/flac.rb
+++ b/Library/Formula/flac.rb
@@ -29,6 +29,11 @@ class Flac < Formula
     cause "Undefined symbols when linking"
   end
 
+  fails_with :clang do
+    build 500
+    cause "Undefined symbols ___cpuid and ___cpuid_count"
+  end
+
   def install
     ENV.universal_binary if build.universal?