clang/win: Build chromium code without -Wno-incompatible-pointer-types.

third_party/libwebp/BUILD.gn

Index: third_party/libwebp/BUILD.gn
diff --git a/third_party/libwebp/BUILD.gn b/third_party/libwebp/BUILD.gn
index 5495e6460b4fdaf005c5fd8c5d9c0aced0548984..2b2e3de53cc404ad9f78bec8effac4d130710816 100644
--- a/third_party/libwebp/BUILD.gn
+++ b/third_party/libwebp/BUILD.gn
@@ -46,6 +46,9 @@ source_set("libwebp_demux") {
   all_dependent_configs = [ ":libwebp_config" ]
   configs -= [ "//build/config/compiler:chromium_code" ]
   configs += [ "//build/config/compiler:no_chromium_code" ]
+  deps = [
+    ":libwebp_utils",
+  ]
 }
 
 source_set("libwebp_dsp") {
@@ -74,7 +77,9 @@ source_set("libwebp_dsp") {
   configs += [ "//build/config/compiler:no_chromium_code" ]
 
   all_dependent_configs = [ ":libwebp_config" ]
-  deps = []
+  deps = [
+    ":libwebp_utils",
+  ]
   if (is_android) {
     deps += [ "//third_party/android_tools:cpu_features" ]
   }
@@ -151,6 +156,10 @@ source_set("libwebp_enc") {
   configs += [ "//build/config/compiler:no_chromium_code" ]
 
   all_dependent_configs = [ ":libwebp_config" ]
+
+  deps = [
+    ":libwebp_utils",
+  ]
 }
 
 source_set("libwebp_utils") {
@@ -172,6 +181,13 @@ source_set("libwebp_utils") {
   configs += [ "//build/config/compiler:no_chromium_code" ]
 
   all_dependent_configs = [ ":libwebp_config" ]
+
+  config("libwebp_utils_warnings") {
+    if (is_clang) {
+      cflags = [ "-Wno-incompatible-pointer-types" ]
+    }
+  }

[Nico, 2015/07/07 18:25:11]

Can you add a short comment about this? Also, since webp is "kind of" chromium
code, maybe file an upstream issue and link to it (in the gyp file too)

[Sam McNally, 2015/07/08 00:52:23]

Done.

+  public_configs = [ ":libwebp_utils_warnings" ]
 }
 
 group("libwebp") {