[gegl] gegl: install gegl-buffer-iterator2.h header

[Øyvind "pippin" Kolås <ok src gnome org>]

commit 8fa0839798846b5a7d7b7deb93ebc7397c13fea7
Author: Øyvind Kolås <pippin gimp org>
Date:   Mon Sep 10 23:34:57 2018 +0200

    gegl: install gegl-buffer-iterator2.h header

 gegl/Makefile.am | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/gegl/Makefile.am b/gegl/Makefile.am
index 4f15c69b1..e0dbe7c9b 100644
--- a/gegl/Makefile.am
+++ b/gegl/Makefile.am
@@ -59,6 +59,7 @@ GEGL_introspectable_headers = \
        gegl-version.h                  \
        buffer/gegl-buffer.h            \
        buffer/gegl-buffer-iterator.h   \
+       buffer/gegl-buffer-iterator2.h  \
        buffer/gegl-buffer-backend.h    \
        buffer/gegl-tile-backend.h              \
        buffer/gegl-tile-handler.h              \