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Fix most -Wundef warnings

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In some cases #if was used instead of #ifdef in an inconsistent style.
Cleaning this up also helps when analyzing cases like
38d8dce61f where this makes a
difference.

There are no behavior changes here, but the change in pg_bswap.h would
prevent possible accidental misuse by third-party code.

Discussion: https://www.postgresql.org/message-id/flat/3b615ca5-c595-3f1d-fdf7-a429e564f614%402ndquadrant.com
This commit is contained in:
Peter Eisentraut
2019-10-19 18:21:58 +02:00
parent 48cc59ed24
commit 5d3587d14b
11 changed files with 27 additions and 19 deletions
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2
src/backend/utils/mmgr/freepage.c
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@@ -164,7 +164,7 @@ static void FreePagePushSpanLeader(FreePageManager *fpm, Size first_page,
static Size FreePageManagerLargestContiguous(FreePageManager *fpm);
static void FreePageManagerUpdateLargest(FreePageManager *fpm);
#if FPM_EXTRA_ASSERTS
#ifdef FPM_EXTRA_ASSERTS
static Size sum_free_pages(FreePageManager *fpm);
#endif