Messages in this thread Patch in this message | | | From | Bobby Powers <> | Subject | [PATCH] tools/lib/api: undefine _FORTIFY_SOURCE before setting it | Date | Sat, 18 Apr 2015 10:46:20 -0400 |
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Some toolchains (like Hardened Gentoo) define _FORTIFY_SOURCE in the built-in, default args. This causes perf builds to fail with:
<command-line>:0:0: error: "_FORTIFY_SOURCE" redefined [-Werror] <built-in>: note: this is the location of the previous definition cc1: all warnings being treated as errors
To avoid this, undefine _FORTIFY_SOURCE before (possibly re-)defining it in tools/lib/api.
Signed-off-by: Bobby Powers <bobbypowers@gmail.com> --- tools/lib/api/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/lib/api/Makefile b/tools/lib/api/Makefile index 36c08b1..87c72d1 100644 --- a/tools/lib/api/Makefile +++ b/tools/lib/api/Makefile @@ -21,7 +21,7 @@ LIB_OBJS += $(OUTPUT)fd/array.o LIBFILE = libapikfs.a -CFLAGS = -ggdb3 -Wall -Wextra -std=gnu99 -Werror -O6 -D_FORTIFY_SOURCE=2 $(EXTRA_WARNINGS) $(EXTRA_CFLAGS) -fPIC +CFLAGS = -ggdb3 -Wall -Wextra -std=gnu99 -Werror -O6 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $(EXTRA_WARNINGS) $(EXTRA_CFLAGS) -fPIC EXTLIBS = -lelf -lpthread -lrt -lm ALL_CFLAGS = $(CFLAGS) $(BASIC_CFLAGS) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 ALL_LDFLAGS = $(LDFLAGS) -- 2.3.5
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