clang support

skia/skia.gyp

Index: skia/skia.gyp
diff --git a/skia/skia.gyp b/skia/skia.gyp
index c6279256462f79cf17ba8ec8a41c59b03cd18c04..20e593da7a42ad8b09465a3c4f907a47794b7137 100644
--- a/skia/skia.gyp
+++ b/skia/skia.gyp
@@ -592,6 +592,14 @@
             '../third_party/skia/src/opts/opts_check_SSE2.cpp'
           ],
         }],
+        ['clang==1', {
+          'defines': [
+            # Remove all use of __restrict__ -- skia uses it incorrectly,
+            # and clang is more strict about it.
+            # http://code.google.com/p/skia/issues/detail?id=63
+            'SK_RESTRICT=',
+          ],
+        }],
         [ 'OS == "linux" or OS == "freebsd" or OS == "openbsd" or OS == "solaris"', {
           'dependencies': [
             '../build/linux/system.gyp:gdk',