--- a/jdk/make/common/shared/Defs-versions.gmk	Sat Dec 18 18:28:01 2010 -0800
+++ b/jdk/make/common/shared/Defs-versions.gmk	Tue Dec 21 18:21:26 2010 -0800
@@ -27,7 +27,22 @@
 # WARNING: This file is shared with other workspaces.
 #
 
-# This file needs these set: CC_VERSION, PLATFORM, ARCH_FAMILY, and ARCH_DATA_MODEL.
+# This file needs these set: PLATFORM, ARCH_FAMILY, and ARCH_DATA_MODEL.
+
+# Windows uses Microsoft compilers by default
+ifeq ($(PLATFORM), windows)
+  override CC_VERSION = msvc
+endif
+
+# Solaris uses Sun Studio compilers by default
+ifeq ($(PLATFORM), solaris)
+  override CC_VERSION = sun
+endif
+
+# Linux uses GNU compilers by default
+ifeq ($(PLATFORM), linux)
+  override CC_VERSION = gcc
+endif
 
 ##########################################################################
 #