Makefile.flags

   1 # ==========================================================================
   2 # Build system
   3 # ==========================================================================
   4
   5 BB_VER = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
   6
   7 # -std=gnu99 needed for [U]LLONG_MAX on some systems
   8
   9 CPPFLAGS += \
  10         -std=gnu99 \
  11         -Iinclude -Ilibbb \
  12         $(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) -I$(srctree)/libbb \
  13         -include include/autoconf.h \
  14         -D_GNU_SOURCE -DNDEBUG \
  15         $(if $(CONFIG_LFS),-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64) \
  16         -D"BB_VER=KBUILD_STR($(BB_VER))" -DBB_BT=AUTOCONF_TIMESTAMP
  17
  18 CFLAGS += \
  19         -Wall -Wshadow -Wno-error -Wundef \
  20         -Wold-style-definition \
  21         -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations \
  22         -funsigned-char -fno-builtin-strlen -finline-limit=0 -static-libgcc \
  23         -Os -falign-functions=1 -falign-jumps=1 -falign-loops=1 \
  24         -fomit-frame-pointer -ffunction-sections -fdata-sections
  25 # FIXME: These warnings are at least partially to be concerned about and should
  26 # be fixed..
  27 #CFLAGS+=-Wconversion
  28
  29
  30 ifeq ($(CONFIG_DEBUG),y)
  31 CFLAGS += -g
  32 endif
  33
  34 ifeq ($(CONFIG_STATIC),y)
  35 LDFLAGS += -static
  36 endif
  37 #LDFLAGS += -nostdlib