From: Peter Eisentraut <peter@eisentraut.org>
Date: Sun, 22 Dec 2019 22:20:00 +0000 (+0100)
Subject: Fix compiler warning for ppoll() on Cygwin
X-Git-Tag: REL_13_BETA1~979
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=127ccb37251744c0fad2df0f3f67dd2c38fe8389;p=thirdparty%2Fpostgresql.git

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
---

diff --git a/src/template/cygwin b/src/template/cygwin
index 79a108145ff..1e7274bc33a 100644
--- a/src/template/cygwin
+++ b/src/template/cygwin
@@ -2,6 +2,9 @@
 
 SRCH_LIB="/usr/local/lib"
 
+# This is required for ppoll(2), and perhaps other things
+CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
+
 # Extra CFLAGS for code that will go into a shared library
 CFLAGS_SL=""