More forced-C++03 -Werror tweaking

Change-Id: I69c0311df4bd234ebecb866b950fa7f58a13563c

solenv/gbuild/platform/com_GCC_defs.mk

@@ -100,9 +100,11 @@ gb_CFLAGS_WERROR := $(if $(ENABLE_WERROR),-Werror)
 # This is the default in non-C++11 mode
 ifeq ($(COM_GCC_IS_CLANG),TRUE)
 # doesn't know gnu++03 and this seems to be the same anyway
-gb_CXX03FLAGS := -std=gnu++98 -Werror=c++11-extensions -Wno-c++11-long-long
+gb_CXX03FLAGS := -std=gnu++98 -Werror=c++11-extensions -Wno-c++11-long-long \
+    -Wno-deprecated-declarations
 else
-gb_CXX03FLAGS := -std=gnu++03 -pedantic-errors -Wno-long-long -Wno-variadic-macros -Wno-non-virtual-dtor
+gb_CXX03FLAGS := -std=gnu++03 -pedantic-errors -Wno-long-long \
+    -Wno-variadic-macros -Wno-non-virtual-dtor -Wno-deprecated-declarations
 endif
 
 ifeq ($(ENABLE_LTO),TRUE)