[gimp/gimp-2-10] app: add missing includes for windows

[Jehan <jehanp src gnome org>]

commit a66f88287cf6c656ee26fcd859560597c8607d72
Author: Félix Piédallu <felix piedallu me>
Date:   Fri Aug 23 00:33:31 2019 +0200

    app: add missing includes for windows
    
    (cherry picked from commit 46f706a40302626d8aaed20f049391d0c4aa94aa)

 app/core/gimpdatafactory.c     | 1 +
 app/display/gimpdisplayshell.c | 1 +
 2 files changed, 2 insertions(+)
---
diff --git a/app/core/gimpdatafactory.c b/app/core/gimpdatafactory.c
index 3b4a6db52f..5ee7114101 100644
--- a/app/core/gimpdatafactory.c
+++ b/app/core/gimpdatafactory.c
@@ -22,6 +22,7 @@
 
 #include <gdk-pixbuf/gdk-pixbuf.h>
 #include <gegl.h>
+#include <stdlib.h>
 
 #include "libgimpbase/gimpbase.h"
 #include "libgimpmath/gimpmath.h"
diff --git a/app/display/gimpdisplayshell.c b/app/display/gimpdisplayshell.c
index 4df3a05f94..4198a86d88 100644
--- a/app/display/gimpdisplayshell.c
+++ b/app/display/gimpdisplayshell.c
@@ -18,6 +18,7 @@
 #include "config.h"
 
 #include <string.h>
+#include <stdlib.h>
 
 #include <gegl.h>
 #include <gtk/gtk.h>