From b4857c6043f8b8a4a0e4e8f8dd091d128effa9ca Mon Sep 17 00:00:00 2001
From: Paul Fertser <fercerpav@gmail.com>
Date: Thu, 21 Apr 2022 13:24:00 +0300
Subject: [PATCH] Fix xscreensaver detection

Using pkg-config to find libraries requires explicit mention of the
relevant _CFLAGS and _LIBS variables.

Fixes #1695.
---
 configure.ac | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index f4653a03..158878b0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -270,7 +270,8 @@ AS_IF([test "x$PLATFORM" = xosx],
 dnl feature: xscreensaver
 AS_IF([test "x$enable_xscreensaver" != xno],
     [PKG_CHECK_MODULES([xscrnsaver], [xscrnsaver],
-        [AC_MSG_NOTICE([xscreensaver support is enabled])],
+        [AC_MSG_NOTICE([xscreensaver support is enabled]);
+         LIBS="$xscrnsaver_LIBS $LIBS" CFLAGS="$CFLAGS $xscrnsaver_CFLAGS"],
         [AS_IF([test "x$enable_xscreensaver" = xyes],
             [AC_MSG_ERROR([xscreensaver is required but does not exist])],
             [AC_MSG_NOTICE([xscreensaver support is disabled])])])])