pgsql: Fix pkg-config files for static linking

Fix pkg-config files for static linking

Since ea53100d5 (PostgreSQL 12), the shipped pkg-config files have
been broken for statically linking libpq because libpgcommon and
libpgport are missing. This patch adds those two missing private
dependencies (in a non-hardcoded way).

Reported-by: Filip Gospodinov <f@gospodinov.ch>
Discussion: /messages/by-id/c7108bde-e051-11d5-a234-99beec01ce2a@gospodinov.ch

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/4c2eab3a0dec2eae40892fb525830a5947a398c7

Modified Files
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src/Makefile.shlib | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)