+# Suppress -Wextra warnings in third party code.
+$(BUILD_PFX)third_party/googletest/%.cc.o: CXXFLAGS += -Wno-missing-field-initializers
+# Suppress -Wextra warnings in first party code pending investigation.
+# https://bugs.chromium.org/p/webm/issues/detail?id=1069
+$(BUILD_PFX)vp8/encoder/onyx_if.c.o: CFLAGS += -Wno-unknown-warning-option -Wno-clobbered
+$(BUILD_PFX)vp8/decoder/onyxd_if.c.o: CFLAGS += -Wno-unknown-warning-option -Wno-clobbered