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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2018-07-09 17:23:31 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2018-07-09 17:23:31 -0400 |
| commit | 6532ca57ad326d6ac9200eff3f93c3b036626bb6 (patch) | |
| tree | d5280513ef4e721883f080034a3aaaf67648ba2f /contrib/postgres_fdw | |
| parent | 62203e6084adcebd277a138e2e0ed21f2b8ed305 (diff) | |
| download | postgresql-6532ca57ad326d6ac9200eff3f93c3b036626bb6.tar.gz postgresql-6532ca57ad326d6ac9200eff3f93c3b036626bb6.zip | |
Prevent accidental linking of system-supplied copies of libpq.so etc.
Back-patch commit dddfc4cb2, which broke LDFLAGS and related Makefile
variables into two parts, one for within-build-tree library references and
one for external libraries, to ensure that the order of -L flags has all
of the former before all of the latter. This turns out to fix a problem
recently noted on buildfarm member peripatus, that we attempted to
incorporate code from libpgport.a into a shared library. That will fail on
platforms that are sticky about putting non-PIC code into shared libraries.
(It's quite surprising we hadn't seen such failures before, since the code
in question has been like that for a long time.)
I think that peripatus' problem could have been fixed with just a subset
of this patch; but since the previous issue of accidentally linking to the
wrong copy of a Postgres shlib seems likely to bite people in the field,
let's just back-patch the whole change. Now that commit dddfc4cb2 has
survived some beta testing, I'm less afraid to back-patch it than I was
at the time.
This also fixes undesired inclusion of "-DFRONTEND" in pg_config's CPPFLAGS
output (in 9.6 and up) and undesired inclusion of "-L../../src/common" in
its LDFLAGS output (in all supported branches).
Back-patch to v10 and older branches; this is already in v11.
Discussion: https://postgr.es/m/20180704234304.bq2dxispefl65odz@ler-imac.local
Diffstat (limited to 'contrib/postgres_fdw')
| -rw-r--r-- | contrib/postgres_fdw/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/contrib/postgres_fdw/Makefile b/contrib/postgres_fdw/Makefile index d2b98e10f3a..08af622bae1 100644 --- a/contrib/postgres_fdw/Makefile +++ b/contrib/postgres_fdw/Makefile @@ -5,7 +5,7 @@ OBJS = postgres_fdw.o option.o deparse.o connection.o $(WIN32RES) PGFILEDESC = "postgres_fdw - foreign data wrapper for PostgreSQL" PG_CPPFLAGS = -I$(libpq_srcdir) -SHLIB_LINK = $(libpq) +SHLIB_LINK_INTERNAL = $(libpq) EXTENSION = postgres_fdw DATA = postgres_fdw--1.0.sql |