--- gegl-0.4.30/operations/external/exr-save.cc	2021-03-27 20:13:57.953967000 +0100
+++ gegl-0.4.30.new/operations/external/exr-save.cc	2021-04-06 10:52:11.522619509 +0200
@@ -45,6 +45,7 @@
 #include <ImfChromaticities.h>
 #include <ImfStandardAttributes.h>
 #include <ImfArray.h>
+#include <ImfFrameBuffer.h>
 #include "ImathRandom.h"