diff -rupN openexr-2.2.0/IlmImf/Makefile.am openexr-2.2.0-new/IlmImf/Makefile.am
--- openexr-2.2.0/IlmImf/Makefile.am	2014-08-10 06:23:57.000000000 +0200
+++ openexr-2.2.0-new/IlmImf/Makefile.am	2014-11-26 09:57:44.976842092 +0100
@@ -197,15 +197,7 @@ CLEANFILES = b44ExpLogTable b44ExpLogTab
 b44ExpLogTable_SOURCES = b44ExpLogTable.cpp
 b44ExpLogTable_LDADD = @ILMBASE_LDFLAGS@ @ILMBASE_LIBS@
 
-b44ExpLogTable.h: b44ExpLogTable
-	./b44ExpLogTable > b44ExpLogTable.h
-
 dwaLookups_SOURCES = dwaLookups.cpp
 dwaLookups_LDADD = @ILMBASE_LDFLAGS@ @ILMBASE_LIBS@
 
-dwaLookups.h: dwaLookups
-	./dwaLookups > dwaLookups.h
-
-BUILT_SOURCES = b44ExpLogTable.h dwaLookups.h
-
 noinst_PROGRAMS = b44ExpLogTable dwaLookups