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-rw-r--r--Makefile.flags2
1 files changed, 1 insertions, 1 deletions
diff --git a/Makefile.flags b/Makefile.flags
index 12c5d58..ed42c2b 100644
--- a/Makefile.flags
+++ b/Makefile.flags
@@ -11,7 +11,7 @@ CPPFLAGS += \
-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 \
- -Wall -Wstrict-prototypes -Wshadow -Werror \
+ -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