From: Helmut Grohne <>
Subject: compile build tools with the build architecture compiler

Patch-Source: https://github.com/openexr/openexr/issues/221

Index: ilmbase-2.2.0/configure.ac
===================================================================
--- ilmbase-2.2.0.orig/configure.ac
+++ ilmbase-2.2.0/configure.ac
@@ -28,6 +28,7 @@
 AC_PROG_LN_S
 AC_PROG_LIBTOOL
 AC_PROG_MAKE_SET
+AX_PROG_CXX_FOR_BUILD
 
 dnl
 dnl PKGCONFIG preparations
Index: ilmbase-2.2.0/Half/Makefile.am
===================================================================
--- ilmbase-2.2.0.orig/Half/Makefile.am
+++ ilmbase-2.2.0/Half/Makefile.am
@@ -17,9 +17,11 @@
 
 CLEANFILES = eLut eLut.h toFloat toFloat.h
 
-eLut_SOURCES = eLut.cpp
+eLut$(EXEEXT): eLut.cpp
+	$(CXX_FOR_BUILD) $(CXXFLAGS_FOR_BUILD) $< -o $@
 
-toFloat_SOURCES = toFloat.cpp
+toFloat$(EXEEXT): toFloat.cpp
+	$(CXX_FOR_BUILD) $(CXXFLAGS_FOR_BUILD) $< -o $@
 
 eLut.h:	eLut
 	./eLut > eLut.h