| Denis Vlasenko | 7d219aa | 2006-10-05 10:17:08 +0000 | [diff] [blame] | 1 | # ========================================================================== |
| Denis Vlasenko | da8f43f | 2006-10-09 19:47:38 +0000 | [diff] [blame] | 2 | # Build system |
| Denis Vlasenko | 7d219aa | 2006-10-05 10:17:08 +0000 | [diff] [blame] | 3 | # ========================================================================== |
| 4 | |
| 5 | BB_VER = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION) |
| 6 | |
| Denis Vlasenko | bf11e89 | 2006-11-26 22:17:46 +0000 | [diff] [blame] | 7 | # -std=gnu99 needed for [U]LLONG_MAX on some systems |
| 8 | |
| Denis Vlasenko | 7039a66 | 2006-10-08 17:54:47 +0000 | [diff] [blame] | 9 | CPPFLAGS += \ |
| Denis Vlasenko | bf11e89 | 2006-11-26 22:17:46 +0000 | [diff] [blame] | 10 | -std=gnu99 \ |
| Denis Vlasenko | 7039a66 | 2006-10-08 17:54:47 +0000 | [diff] [blame] | 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 $(CONFIG_LFS),-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64) \ |
| Bernhard Reutner-Fischer | feea1b9 | 2006-12-06 21:51:59 +0000 | [diff] [blame] | 16 | -D"BB_VER=KBUILD_STR($(BB_VER))" -DBB_BT=AUTOCONF_TIMESTAMP |
| 17 | |
| 18 | CFLAGS += \ |
| Denis Vlasenko | a7189f0 | 2006-11-17 20:29:00 +0000 | [diff] [blame] | 19 | -Wall -Wstrict-prototypes -Wshadow -Werror -Wundef \ |
| Denis Vlasenko | 7039a66 | 2006-10-08 17:54:47 +0000 | [diff] [blame] | 20 | -funsigned-char -fno-builtin-strlen -finline-limit=0 -static-libgcc \ |
| Denis Vlasenko | 1db39b2 | 2006-10-11 20:59:02 +0000 | [diff] [blame] | 21 | -Os -falign-functions=1 -falign-jumps=1 -falign-loops=1 \ |
| Bernhard Reutner-Fischer | dd29828 | 2006-10-20 12:21:17 +0000 | [diff] [blame] | 22 | -fomit-frame-pointer -ffunction-sections -fdata-sections |
| Bernhard Reutner-Fischer | 9729e65 | 2006-12-13 17:44:24 +0000 | [diff] [blame] | 23 | |
| 24 | ifeq ($(CONFIG_DEBUG),y) |
| 25 | CFLAGS += -g |
| Bernhard Reutner-Fischer | 9729e65 | 2006-12-13 17:44:24 +0000 | [diff] [blame] | 26 | endif |
| 27 | |
| Bernhard Reutner-Fischer | c1feac6 | 2007-01-08 16:29:15 +0000 | [diff] [blame^] | 28 | ifeq ($(CONFIG_STATIC),y) |
| 29 | LDFLAGS += -static |
| 30 | endif |
| 31 | LDFLAGS += -nostdlib |