Index: gegl-0.4.30/operations/external/exr-load.cpp
===================================================================
--- gegl-0.4.30.orig/operations/external/exr-load.cpp	2021-03-27 20:13:57.953967000 +0100
+++ gegl-0.4.30/operations/external/exr-load.cpp	2021-04-14 12:59:45.356157579 +0200
@@ -31,6 +31,7 @@ property_file_path (path, "File", "")
 
 #include "gegl-op.h"
 
+#include <ImfFrameBuffer.h>
 #include <ImfInputFile.h>
 #include <ImfChannelList.h>
 #include <ImfRgbaFile.h>
Index: gegl-0.4.30/operations/external/exr-save.cc
===================================================================
--- gegl-0.4.30.orig/operations/external/exr-save.cc	2021-03-27 20:13:57.953967000 +0100
+++ gegl-0.4.30/operations/external/exr-save.cc	2021-04-14 13:00:22.140377503 +0200
@@ -39,6 +39,7 @@ extern "C" {
 } /* extern "C" */
 
 #include <exception>
+#include <ImfFrameBuffer.h>
 #include <ImfTiledOutputFile.h>
 #include <ImfOutputFile.h>
 #include <ImfChannelList.h>