* [PATCH] fs/proc: Add compiler check for -Wno-override-init to support gcc < 4.2
@ 2016-08-03 15:33 Geert Uytterhoeven
2016-08-03 15:51 ` Valdis.Kletnieks
0 siblings, 1 reply; 2+ messages in thread
From: Geert Uytterhoeven @ 2016-08-03 15:33 UTC (permalink / raw)
To: Valdis Kletnieks, Andrew Morton, Linus Torvalds
Cc: linux-kernel, Geert Uytterhoeven
With gcc < 4.2 (e.g. 4.1.2):
CC fs/proc/task_mmu.o
cc1: error: unrecognized command line option "-Wno-override-init"
To fix this, only enable the compiler option when it is actually
supported by the compiler.
Fixes: ca52953f5f24aff0 ("fs/proc/task_mmu.c: suppress compilation warnings with W=1")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
fs/proc/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/proc/Makefile b/fs/proc/Makefile
index a8c13605b43482a7..12c6922c913c4519 100644
--- a/fs/proc/Makefile
+++ b/fs/proc/Makefile
@@ -4,7 +4,7 @@
obj-y += proc.o
-CFLAGS_task_mmu.o += -Wno-override-init
+CFLAGS_task_mmu.o += $(call cc-option,-Wno-override-init,)
proc-y := nommu.o task_nommu.o
proc-$(CONFIG_MMU) := task_mmu.o
--
1.9.1
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2016-08-03 15:33 [PATCH] fs/proc: Add compiler check for -Wno-override-init to support gcc < 4.2 Geert Uytterhoeven
2016-08-03 15:51 ` Valdis.Kletnieks
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