diff -ru cinepaint-0.21-2/plug-ins/openexr/Makefile.am cinepaint-0.21-2.b/plug-ins/openexr/Makefile.am
--- cinepaint-0.21-2/plug-ins/openexr/Makefile.am	2006-08-04 10:54:39.000000000 +0200
+++ cinepaint-0.21-2.b/plug-ins/openexr/Makefile.am	2007-02-20 16:47:27.000000000 +0100
@@ -27,6 +27,7 @@
 	$(top_builddir)/lib/libcinepaint.la \
 	$(X_LIBS) \
 	$(OPENEXR_LIBS) \
+	$(THREAD_LIBS) \
 	@LCMS_LIB@ \
 	-lc
 
diff -ru cinepaint-0.21-2/plug-ins/openexr/Makefile.in cinepaint-0.21-2.b/plug-ins/openexr/Makefile.in
--- cinepaint-0.21-2/plug-ins/openexr/Makefile.in	2006-11-01 14:06:49.000000000 +0100
+++ cinepaint-0.21-2.b/plug-ins/openexr/Makefile.in	2007-02-20 16:47:09.000000000 +0100
@@ -293,6 +293,7 @@
 	$(top_builddir)/lib/libcinepaint.la \
 	$(X_LIBS) \
 	$(OPENEXR_LIBS) \
+	$(THREAD_LIBS) \
 	@LCMS_LIB@ \
 	-lc