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Add more -W options to gcc.
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@ -21,27 +21,16 @@ CPPFLAGS += \
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CFLAGS += $(call cc-option,-Wall -Wshadow -Wwrite-strings,)
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CFLAGS += $(call cc-option,-Wall -Wshadow -Wwrite-strings,)
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CFLAGS += $(call cc-option,-Wundef -Wstrict-prototypes,)
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CFLAGS += $(call cc-option,-Wundef -Wstrict-prototypes,)
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CFLAGS += $(call cc-option,-Wunused -Wunused-parameter,)
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CFLAGS += $(call cc-option,-Wunused -Wunused-parameter,)
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# If you want to add "-Wmissing-prototypes -Wmissing-declarations" above
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CFLAGS += $(call cc-option,-Wmissing-prototypes -Wmissing-declarations,)
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# (or anything else for that matter) make sure that it is still possible
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# If you want to add more -Wsomething above, make sure that it is
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# to build bbox without warnings. Current offender: find.c:alloc_action().
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# still possible to build bbox without warnings.
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# Looks more like gcc bug: gcc will warn on it with or without prototype.
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# But still, warning-free compile is a must, or else we will drown
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# in warnings pretty soon.
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ifeq ($(CONFIG_WERROR),y)
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ifeq ($(CONFIG_WERROR),y)
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CFLAGS += $(call cc-option,-Werror,)
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CFLAGS += $(call cc-option,-Werror,)
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else
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# for development, warn a little bit about unused results..
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CPPFLAGS += -D_FORTIFY_SOURCE=2
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endif
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endif
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# gcc 3.x emits bogus "old style proto" warning on find.c:alloc_action()
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# gcc 3.x emits bogus "old style proto" warning on find.c:alloc_action()
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CFLAGS += $(call cc-ifversion, -ge, 0400, -Wold-style-definition)
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CFLAGS += $(call cc-ifversion, -ge, 0400, -Wold-style-definition)
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# gcc emits bogus "no prev proto" warning on find.c:alloc_action()
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ifneq ($(CONFIG_WERROR),y)
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CFLAGS += $(call cc-option,-Wmissing-prototypes -Wmissing-declarations,)
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endif
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CFLAGS += $(call cc-option,-Os -fno-builtin-strlen -finline-limit=0 -fomit-frame-pointer -ffunction-sections -fdata-sections,)
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CFLAGS += $(call cc-option,-Os -fno-builtin-strlen -finline-limit=0 -fomit-frame-pointer -ffunction-sections -fdata-sections,)
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# -fno-guess-branch-probability: prohibit pseudo-random guessing
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# -fno-guess-branch-probability: prohibit pseudo-random guessing
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# of branch probabilities (hopefully makes bloatcheck more stable):
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# of branch probabilities (hopefully makes bloatcheck more stable):
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