# ==========================================================================
# Build system
# ==========================================================================

BB_VER = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)

# -std=gnu99 needed for [U]LLONG_MAX on some systems

CPPFLAGS += \
	-std=gnu99 \
	-Iinclude -Ilibbb \
	$(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) -I$(srctree)/libbb \
	-include include/autoconf.h \
	-D_GNU_SOURCE -DNDEBUG \
	$(if $(CONFIG_LFS),-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64) \
	-D"BB_VER=KBUILD_STR($(BB_VER))" -DBB_BT=AUTOCONF_TIMESTAMP

CFLAGS += \
	-Wall -Wstrict-prototypes -Wshadow -Werror -Wundef \
	-funsigned-char -fno-builtin-strlen -finline-limit=0 -static-libgcc \
	-Os -falign-functions=1 -falign-jumps=1 -falign-loops=1 \
	-fomit-frame-pointer -ffunction-sections -fdata-sections

ifeq ($(CONFIG_DEBUG),y)
CFLAGS += -g
LDFLAGS += -g
endif