Index: icedtea6/acinclude.m4
===================================================================
--- icedtea6.orig/acinclude.m4	2011-12-20 02:25:50.000000000 +0100
+++ icedtea6/acinclude.m4	2011-12-20 18:02:08.340386576 +0100
@@ -928,6 +928,21 @@
   AC_SUBST(ALT_CACAO_SRC_DIR)
 ])
 
+AC_DEFUN([AC_CHECK_WITH_CC_FOR_BUILD],
+[
+  AC_MSG_CHECKING(for compiler used for subsidiary programs)
+  AC_ARG_WITH([cc-for-build],
+              [AS_HELP_STRING(--with-cc-for-build,specify the compiler for subsidiary (helper) programs)],
+  [
+    CC_FOR_BUILD="${withval}"
+  ],
+  [
+    CC_FOR_BUILD="\$(CC)"
+  ])
+  AC_MSG_RESULT(${CC_FOR_BUILD})
+  AC_SUBST(CC_FOR_BUILD)
+])
+
 AC_DEFUN([IT_WITH_GCJ],
 [
   AC_MSG_CHECKING([whether to compile ecj natively])
Index: icedtea6/Makefile.am
===================================================================
--- icedtea6.orig/Makefile.am	2011-12-20 17:59:27.000000000 +0100
+++ icedtea6/Makefile.am	2011-12-20 18:04:32.972312064 +0100
@@ -538,6 +538,7 @@
 	JAVAC="" \
 	JAVA_HOME="" \
 	JDK_HOME="" \
+	CC_FOR_BUILD="$(CC_FOR_BUILD)" \
         OE_CFLAGS="$(OE_CFLAGS)" \
         OE_CPPFLAGS="$(OE_CPPFLAGS)" \
         OE_CXXFLAGS="$(OE_CXXFLAGS)" \
Index: icedtea6/configure.ac
===================================================================
--- icedtea6.orig/configure.ac	2011-12-20 02:25:50.000000000 +0100
+++ icedtea6/configure.ac	2011-12-20 18:03:04.534043885 +0100
@@ -18,6 +18,8 @@
 AC_PROG_CC
 AC_PROG_CXX
 
+AC_CHECK_WITH_CC_FOR_BUILD
+
 IT_FIND_TOOL([MAKE], [make])
 IT_FIND_TOOL([GZIP], [gzip])
 IT_FIND_TOOL([ANT], [ant])