--- a/common/autoconf/spec.gmk.in	Mon Aug 18 10:05:34 2014 +0100
+++ b/common/autoconf/spec.gmk.in	Tue Aug 19 13:43:40 2014 +0200
@@ -106,6 +106,7 @@
 # When not cross-compiling, it is the same as the target.
 OPENJDK_BUILD_OS:=@OPENJDK_BUILD_OS@
 OPENJDK_BUILD_OS_API:=@OPENJDK_BUILD_OS_API@
+OPENJDK_BUILD_OS_ENV:=@OPENJDK_BUILD_OS_ENV@
 
 OPENJDK_BUILD_CPU:=@OPENJDK_BUILD_CPU@
 OPENJDK_BUILD_CPU_ARCH:=@OPENJDK_BUILD_CPU_ARCH@