Commit 4b2e0162 authored by Geert Uytterhoeven's avatar Geert Uytterhoeven Committed by Linus Torvalds

fs/proc: Add compiler check for -Wno-override-init to support gcc < 4.2

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: ca52953f ("fs/proc/task_mmu.c: suppress compilation warnings with W=1")
Signed-off-by: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
Acked-by: default avatarValdis Kletnieks <valdis.kletnieks@vt.edu>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent f0936155
......@@ -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
......
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