On Sat, Apr 18, 2015 at 10:46:20AM -0400, Bobby Powers wrote: > 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 <[email protected]>
Acked-by: Jiri Olsa <[email protected]> thanks, jirka > --- > 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 > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
