diff options
| -rw-r--r-- | Makefile.flags | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/Makefile.flags b/Makefile.flags index cec73df8f..b39dfbb3c 100644 --- a/Makefile.flags +++ b/Makefile.flags @@ -5,8 +5,8 @@ BB_VER = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION) # -std=gnu99 needed for [U]LLONG_MAX on some systems - CPPFLAGS += $(call cc-option,-std=gnu99,) + CPPFLAGS += \ -Iinclude -Ilibbb \ $(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) -I$(srctree)/libbb \ @@ -20,11 +20,21 @@ CFLAGS += $(call cc-option,-Wall -Wshadow,) ifeq ($(CONFIG_WERROR),y) CFLAGS += $(call cc-option,-Werror,) endif -CFLAGS += $(call cc-option,-Wundef -Wold-style-definition -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations,) +CFLAGS += $(call cc-option,-Wundef -Wold-style-definition -Wstrict-prototypes,) +# If you want to add "-Wmissing-prototypes -Wmissing-declarations" above +# (or anything else for that matter) make sure that it is still possible +# to build bbox without warnings. Current offender: find.c:alloc_action(). +# Looks more like gcc bug: gcc will warn on it with or without prototype. +# But still, warning-free compile is a must, or else we will drown +# in warnings pretty soon. +ifneq ($(CONFIG_WERROR),y) +CFLAGS += $(call cc-option,-Wmissing-prototypes -Wmissing-declarations,) +endif CFLAGS += $(call cc-option,-Os -fno-builtin-strlen -finline-limit=0 -fomit-frame-pointer -ffunction-sections -fdata-sections,) # -fno-guess-branch-probability: prohibit pseudo-random guessing -# of branch probabilities (hopefully makes bloatcheck more stable) -CFLAGS += $(call cc-option,-funsigned-char -fno-guess-branch-probability -static-libgcc,) +# of branch probabilities (hopefully makes bloatcheck more stable): +CFLAGS += $(call cc-option,-fno-guess-branch-probability,) +CFLAGS += $(call cc-option,-funsigned-char -static-libgcc,) CFLAGS += $(call cc-option,-falign-functions=1 -falign-jumps=1 -falign-labels=1 -falign-loops=1,) # FIXME: These warnings are at least partially to be concerned about and should |