pgsql: Fix compiler warning for ppoll() on Cygwin

Peter Eisentraut <[email protected]> Sun, 22 Dec 2019 22:21:53 +0000
Newsgroups gmane.comp.db.postgresql.devel.cvs
Message-ID <[email protected]>
Fix compiler warning for ppoll() on Cygwin

_GNU_SOURCE is required to get the prototype, so just define that
globally, as was already done in the linux template.

Discussion: https://www.postgresql.org/message-id/flat/6b467edc-4018-521f-ab18-171f098557ca%402ndquadrant.com

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/127ccb37251744c0fad2df0f3f67dd2c38fe8389

Modified Files
--------------
src/template/cygwin | 3 +++
1 file changed, 3 insertions(+)