pgsql: libpq: Authorize pthread_exit() in libpq_check

libpq: Authorize pthread_exit() in libpq_check

pthread_exit() is added to the list of symbols allowed when building
libpq. This has been reported as possible when libpq is statically
linked to libcrypto, where pthread_exit() could be called.

Reported-by: Torsten Rupp <torsten.rupp@gmx.net>
Author: Nazir Bilal Yavuz <byavuz81@gmail.com>
Reviewed-by: Daniel Gustafsson <daniel@yesql.se>
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Discussion: /messages/by-id/19095-6d8256d0c37d4be2@postgresql.org

Branch
------
master

Details
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https://git.postgresql.org/pg/commitdiff/8268e66ac64cb846517580e0808f971343391fdf

Modified Files
--------------
src/interfaces/libpq/libpq_check.pl | 4 ++++
1 file changed, 4 insertions(+)