On Mon, Nov 10, 2014 at 4:31 PM, Peter Geoghegan <p...@heroku.com> wrote:
> I see this when I build at -O2 from master's tip:
>
> gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith
> -Wdeclaration-after-statement -Wendif-labels
> -Wmissing-format-attribute -Wformat-security -fno-strict-aliasing
> -fwrapv -fexcess-precision=standard -Werror -I../../../../src/include
> -D_FORTIFY_SOURCE=2 -D_GNU_SOURCE -I/usr/include/libxml2 -c -o
> brin_revmap.o brin_revmap.c -MMD -MP -MF .deps/brin_revmap.Po
> brin_revmap.c: In function ‘brinRevmapExtend’:
> brin_revmap.c:113:14: error: variable ‘mapBlk’ set but not used
> [-Werror=unused-but-set-variable]
> BlockNumber mapBlk;
> ^
>
> I'm using gcc 4.8.2 here.
>
>
It would appear just to need the attached.
Regards
David Rowley
diff --git a/src/backend/access/brin/brin_revmap.c
b/src/backend/access/brin/brin_revmap.c
index 7f55ded..272c74e 100644
--- a/src/backend/access/brin/brin_revmap.c
+++ b/src/backend/access/brin/brin_revmap.c
@@ -110,7 +110,7 @@ brinRevmapTerminate(BrinRevmap *revmap)
void
brinRevmapExtend(BrinRevmap *revmap, BlockNumber heapBlk)
{
- BlockNumber mapBlk;
+ BlockNumber mapBlk PG_USED_FOR_ASSERTS_ONLY;
mapBlk = revmap_extend_and_get_blkno(revmap, heapBlk);
--
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