-std=gnu11 is not available with gcc < 4.7. Signed-off-by: Vinson Lee <vlee@xxxxxxxxxxxxxxx> --- Makefile | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/Makefile b/Makefile index a47e248..9fbdb94 100644 --- a/Makefile +++ b/Makefile @@ -10,7 +10,9 @@ endif CC := $(CROSS_COMPILE)$(CC) LD := $(CROSS_COMPILE)$(LD) -CFLAGS += -Wall -Wextra -g -O2 -I. -Iinclude/ -Wimplicit -D_FORTIFY_SOURCE=2 -D_GNU_SOURCE -D__linux__ -std=gnu11 +CFLAGS += -Wall -Wextra -g -O2 -I. -Iinclude/ -Wimplicit -D_FORTIFY_SOURCE=2 -D_GNU_SOURCE -D__linux__ + +CFLAGS += $(shell if $(CC) -std=gnu11 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-std=gnu11"; else echo "-std=gnu99"; fi) # Only enabled during development, and on gcc 4.9+ CPP_MAJOR := $(shell $(CPP) -dumpversion 2>&1 | cut -d'.' -f1) -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe trinity" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
