[Xen-changelog] [xen-unstable] xen/x86: Add -Wnested-externs to CFLAGS

[Xen patchbot-unstable <patchbot@xxxxxxx>]

# HG changeset patch
# User Tim Deegan <Tim.Deegan@xxxxxxxxxx>
# Date 1306483007 -3600
# Node ID fc963f9f2808484c8c2d39146754d217873f3b41
# Parent  a307a212b08687882e02d975e13eafacc207d9ce
xen/x86: Add -Wnested-externs to CFLAGS

This will catch any new extern declarations that happen actually
inside function bodies.  Unfortunately there's no equivalent
warning for extern declarations at rootl level in .c files.

Signed-off-by: Tim Deegan <Tim.Deegan@xxxxxxxxxx>
---


diff -r a307a212b086 -r fc963f9f2808 xen/arch/x86/Rules.mk
--- a/xen/arch/x86/Rules.mk     Fri May 27 08:56:12 2011 +0100
+++ b/xen/arch/x86/Rules.mk     Fri May 27 08:56:47 2011 +0100
@@ -27,6 +27,7 @@
 CFLAGS += -msoft-float
 
 $(call cc-options-add,CFLAGS,CC,$(EMBEDDED_EXTRA_CFLAGS))
+$(call cc-option-add,CFLAGS,CC,-Wnested-externs)
 
 ifeq ($(supervisor_mode_kernel),y)
 CFLAGS += -DCONFIG_X86_SUPERVISOR_MODE_KERNEL=1

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