[Xen-ia64-devel] "-Wall" option doesn't work

["Xu, Anthony" <anthony.xu@xxxxxxxxx>]

Hi all,
        I have been wondering why "-Wall" option doesn't work, and I had
suffered much from this. Without -Wall, gcc will not complain about
missing prototype etc., for example, assume function A return type is
unsigned long, according to calling convention, if function A is called
and there is no prototype, the return type will be int by default, which
is 4 type. This kind of issue is hard to debug. Below small patch make
"-Wall" take effect, seems "-w" overwrites "-Wall", then you recompile,
you will find a lot of warning messages like redefinition, missing
prototype etc. I would like to remove all these warning message, but all
my hands are full.

Anyone would like to volunteer; this will help community a lot.


diff -r 5bd5121efa22 xen/arch/ia64/Rules.mk
--- a/xen/arch/ia64/Rules.mk    Wed Jan 11 05:57:14 2006
+++ b/xen/arch/ia64/Rules.mk    Thu Jan 12 09:08:44 2006
@@ -26,7 +26,7 @@
 CFLAGS  += -Wno-pointer-arith -Wredundant-decls
 CFLAGS  += -DIA64 -DXEN -DLINUX_2_6 -DV_IOSAPIC_READY
 CFLAGS += -ffixed-r13 -mfixed-range=f12-f15,f32-f127
-CFLAGS += -w -g
+CFLAGS += -g
 


Thanks,
-Anthony 


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