Fix Mkvcbuild.pm builds of test_cloexec.c.
Mkvcbuild.pm scrapes Makefile contents, but couldn't understand the
change made by commit bec2a0aa. Revealed by BF animal hamerkop in
branch REL_16_STABLE.
1. It used += instead of =, which didn't match the pattern that
Mkvcbuild.pm looks for. Drop the +.
2. Mkvcbuild.pm doesn't link PROGRAM executables with libpgport. Apply
a local workaround to REL_16_STABLE only (later branches dropped
Mkvcbuild.pm).
Backpatch-through: 16
Reported-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/175163.1766357334%40sss.pgh.pa.us
Branch
------
REL_16_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/80e8ec772bff93e04f6cafe20bdf142bfa8c79de
Modified Files
--------------
src/test/modules/test_cloexec/Makefile | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
