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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2019-10-10 14:24:56 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2019-10-10 14:24:56 -0400 |
| commit | 06a367c382d0a3595238eff2e777222dbc91911b (patch) | |
| tree | 2c5896ecae3f20f756d634750627be991fb5c92e /src/backend/access/gist/gistbuildbuffers.c | |
| parent | 3b5d3721c25ed1270832265c5475649c3baa0e26 (diff) | |
| download | postgresql-06a367c382d0a3595238eff2e777222dbc91911b.tar.gz postgresql-06a367c382d0a3595238eff2e777222dbc91911b.zip | |
Put back pqsignal() as an exported libpq symbol.
This reverts commit f7ab80285. Per discussion, we can't remove an
exported symbol without a SONAME bump, which we don't want to do.
In particular that breaks usage of current libpq.so with pre-9.3
versions of psql etc, which need libpq to export pqsignal().
As noted in that commit message, exporting the symbol from libpgport.a
won't work reliably; but actually we don't want to export src/port's
implementation anyway. Any pre-9.3 client is going to be expecting the
definition that pqsignal() had before 9.3, which was that it didn't
set SA_RESTART for SIGALRM. Hence, put back pqsignal() in a separate
source file in src/interfaces/libpq, and give it the old semantics.
Back-patch to v12.
Discussion: https://postgr.es/m/E1g5vmT-0003K1-6S@gemulon.postgresql.org
Diffstat (limited to 'src/backend/access/gist/gistbuildbuffers.c')
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