message: Make OSS errors match the internal errors.
diff: @@ -116,7 +116,6 @@ endif
  OPTIMIZATION_LEVEL := -O3
  CC_WARNINGS := \
  - -Werror \
  -Wsign-compare \
  -Wdouble-promotion \
  -Wshadow \
  @@ -131,6 +130,7 @@ CC_WARNINGS := \
  -Wno-unused-parameter
  COMMON_FLAGS := \
  + -Werror \
  -fno-unwind-tables \
  -ffunction-sections \
  -fdata-sections \
  @@ -155,6 +155,7 @@ CXXFLAGS := \
  $(COMMON_FLAGS)
  CCFLAGS := \
  + -Wimplicit-function-declaration \
  -std=c11 \
  $(COMMON_FLAGS)
  