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disable security warning flags when possible

Some toolchains enable security warning flags by default, but these don't
really make sense in the u-boot world.  Such as forcing changes like:
	-printf(foo);
	+printf("%s", foo);

So disable the flags when the compiler supports them.  Linux has already
merged a similar change in their build system.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Mike Frysinger %!s(int64=13) %!d(string=hai) anos
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Modificáronse 1 ficheiros con 4 adicións e 0 borrados
  1. 4 0
      config.mk

+ 4 - 0
config.mk

@@ -211,6 +211,10 @@ CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes
 endif
 
 CFLAGS += $(call cc-option,-fno-stack-protector)
+# Some toolchains enable security related warning flags by default,
+# but they don't make much sense in the u-boot world, so disable them.
+CFLAGS += $(call cc-option,-Wno-format-nonliteral)
+CFLAGS += $(call cc-option,-Wno-format-security)
 
 # $(CPPFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
 # option to the assembler.