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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/storage/file/fd.c
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@@ -738,7 +738,7 @@ durable_link_or_rename(const char *oldfile, const char *newfile, int elevel)
if (fsync_fname_ext(oldfile, false, false, elevel) != 0)
return -1;
#if HAVE_WORKING_LINK
#ifdef HAVE_WORKING_LINK
if (link(oldfile, newfile) < 0)
{
ereport(elevel,