When compile with debug, without the proper -O flag the compiler complains: /usr/include/features.h:331:4: warning: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Wcpp] # warning _FORTIFY_SOURCE requires compiling with optimization (-O) Signed-off-by: Dave Jiang <dave.jiang@xxxxxxxxx> --- Makefile | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Makefile b/Makefile index b3a12dd..4e7a0b4 100644 --- a/Makefile +++ b/Makefile @@ -30,6 +30,8 @@ SCRIPTS = $(addprefix $(SRCDIR)/,tools/fio_generate_plots tools/plot/fio2gnuplot ifndef CONFIG_FIO_NO_OPT CFLAGS += -O3 +else + CFLAGS += -O endif ifdef CONFIG_GFIO -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html