[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Build failure on i386 fedora core 4
On Mon, Jan 30, 2006 at 01:52:07PM -0800, Kamble, Nitin A wrote: > I am observing xen-unstable build failing on i386 FC4, as seen bellow. > mm.c:1975: warning: ?mapcache.pfn? may be used uninitialized in this > function > > mm.c:1975: warning: ?mapcache.va? may be used uninitialized in this > function that's a bogus gcc4 warning. the variable is fine and not used uninitialized, i checked. I think just not using -Werror for gcc4 is a much better alternative, cf following patch. diff -r 690fc13948db xen/arch/x86/Rules.mk --- a/xen/arch/x86/Rules.mk Mon Jan 30 13:35:43 2006 +0100 +++ b/xen/arch/x86/Rules.mk Mon Jan 30 22:40:33 2006 +0000 @@ -8,7 +8,7 @@ pae ?= n CFLAGS += -nostdinc -fno-builtin -fno-common -fno-strict-aliasing -CFLAGS += -iwithprefix include -Wall -Werror -Wno-pointer-arith -pipe +CFLAGS += -iwithprefix include -Wall -Wno-pointer-arith -pipe CFLAGS += -I$(BASEDIR)/include CFLAGS += -I$(BASEDIR)/include/asm-x86/mach-generic CFLAGS += -I$(BASEDIR)/include/asm-x86/mach-default @@ -55,3 +55,7 @@ $(error gcc-3.1.x unsupported - upgrade to at least gcc-3.2.x) endif endif +ifneq ($(call gcc-ver,1),4) +# gcc 4 have lots of spurious warnings, don't -Werror +CFLAGS += -Werror +endif -- Vincent Hanquez _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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