From 679b9cc9ff3c65b4b6d3da2987703e0dfd3001be Mon Sep 17 00:00:00 2001
From: Robert Pluim <rpluim@gmail.com>
Date: Wed, 16 Mar 2022 15:24:35 +0100
Subject: [PATCH] Link with libdl when using pgtk

* configure.ac: Define LIBMODULES on GNU/Linux when using pgtk, even
when not using modules, since pgtkterm.c uses dlsym.  (Bug#54378)
---
 configure.ac | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/configure.ac b/configure.ac
index a315eeb6bd2..bc17935eb13 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3940,6 +3940,16 @@ case "${opsys}" in
   darwin) MODULES_SECONDARY_SUFFIX='.so' ;;
   *) MODULES_SECONDARY_SUFFIX='' ;;
 esac
+
+# pgtkterm.c uses dlsym
+if test $window_system = pgtk; then
+  case $opsys in
+    gnu|gnu-linux)
+    LIBMODULES="-ldl"
+    ;;
+  esac
+fi
+
 if test "${with_modules}" != "no"; then
   case $opsys in
     gnu|gnu-linux)
-- 
2.39.5