From eca698eaf5404071e90505d195c5237739f244db Mon Sep 17 00:00:00 2001
From: Alexander Gramiak <agrambot@gmail.com>
Date: Sat, 6 Apr 2019 23:02:24 -0600
Subject: [PATCH] Plug memory leak in GTK x-display-monitor-attributes-list

* src/frame.c (free_monitors) [USE_GTK]: Define in the GTK case as
  well.

* src/xfns.c (x-display-monitor-attributes-list) [USE_GTK]: Plug
  memory leak.

* src/frame.h (MonitorInfo): Declare name as pointing to const char.
---
 src/frame.c | 4 ++--
 src/frame.h | 2 +-
 src/xfns.c  | 1 +
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/frame.c b/src/frame.c
index d0c77149ba..6fdb7d0cbb 100644
--- a/src/frame.c
+++ b/src/frame.c
@@ -5662,8 +5662,8 @@ selected frame.  This is useful when `make-pointer-invisible' is set.  */)
 
 #ifdef HAVE_WINDOW_SYSTEM
 
-# if (defined HAVE_NS \
-      || (!defined USE_GTK && (defined HAVE_XINERAMA || defined HAVE_XRANDR)))
+# if (defined USE_GTK || defined HAVE_NS || defined HAVE_XINERAMA \
+      || defined HAVE_XRANDR)
 void
 free_monitors (struct MonitorInfo *monitors, int n_monitors)
 {
diff --git a/src/frame.h b/src/frame.h
index ed62e7ace0..b1eedf36a3 100644
--- a/src/frame.h
+++ b/src/frame.h
@@ -1648,7 +1648,7 @@ flush_frame (struct frame *f)
 struct MonitorInfo {
   XRectangle geom, work;
   int mm_width, mm_height;
-  char *name;
+  const char *name;
 };
 
 extern void free_monitors (struct MonitorInfo *monitors, int n_monitors);
diff --git a/src/xfns.c b/src/xfns.c
index f238a3daa1..33595afc1e 100644
--- a/src/xfns.c
+++ b/src/xfns.c
@@ -5041,6 +5041,7 @@ Internal use only, use `display-monitor-attributes-list' instead.  */)
                                                  primary_monitor,
                                                  monitor_frames,
                                                  source);
+  free_monitors (monitors, n_monitors);
   unblock_input ();
 #else  /* not USE_GTK */
 
-- 
2.21.0