--- solenv/gbuild/Jar.mk.old	2012-02-24 16:34:51.000000000 +0100
+++ solenv/gbuild/Jar.mk	2012-03-20 19:54:16.000000000 +0100
@@ -145,6 +145,11 @@ define gb_Jar_add_system_jar
 $(call gb_JavaClassSet_add_system_jar,$(call gb_Jar_get_classsetname,$(1)),$(2))
 endef
 
+# specify Xbootclasspath/p
+define gb_Jar_prepend_xboot_jars
+$(call gb_JavaClassSet_prepend_xboot_jars,$(call gb_Jar_get_classsetname,$(1)),$(2))
+endef
+
 # specify jars with imported modules
 define gb_Jar_add_jars
 $(call gb_JavaClassSet_add_jars,$(call gb_Jar_get_classsetname,$(1)),$(2))
--- solenv/gbuild/JavaClassSet.mk.old	2012-02-24 16:34:51.000000000 +0100
+++ solenv/gbuild/JavaClassSet.mk	2012-03-20 19:55:15.000000000 +0100
@@ -43,6 +43,8 @@ $(call gb_Helper_abbreviate_dirs_native,
 			$(filter-out $(JARDEPS),$(4))))) && \
 	$(if $(3),$(gb_JavaClassSet_JAVACCOMMAND) \
 		$(gb_JavaClassSet_JAVACDEBUG) \
+		$(gb_JavaClassSet_XBOOTCLASSPATH) \
+		-Xbootclasspath/p:$(XBOOT_CP_P) \
 		-cp "$(T_CP)$(gb_CLASSPATHSEP)$(call gb_JavaClassSet_get_classdir,$(2))" \
 		-d $(call gb_JavaClassSet_get_classdir,$(2)) \
 		@$$RESPONSEFILE &&) \
@@ -85,6 +87,18 @@ $(eval $(call gb_JavaClassSet_get_target
 
 endef
 
+
+# Xbootclasspath
+define gb_JavaClassSet_prepend_xboot_jar
+$(eval $(call gb_JavaClassSet_get_target,$(1)) : $(2))
+$(eval $(call gb_JavaClassSet_get_target,$(1)) : XBOOT_CP_P := $$(XBOOT_CP_P)$(gb_CLASSPATHSEP)$(strip $(2)))
+$(eval $(call gb_JavaClassSet_get_target,$(1)) : JARDEPS += $(2))
+endef
+
+define gb_JavaClassSet_prepend_xboot_jars
+$(foreach jar,$(2),$(call gb_JavaClassSet_prepend_xboot_jar,$(1),$(jar)))
+endef
+
 # problem: currently we can't get these dependencies to work
 # build order dependency is a hack to get these prerequisites out of the way in the build command
 define gb_JavaClassSet_add_jar
--- scripting/Jar_ScriptProviderForJavaScript.mk.old	2012-03-20 19:17:32.000000000 +0100
+++ scripting/Jar_ScriptProviderForJavaScript.mk	2012-03-20 19:49:17.000000000 +0100
@@ -37,6 +37,10 @@ $(eval $(call gb_Jar_add_jars,ScriptProv
 	$(OUTDIR)/bin/js.jar \
 ))
 
+$(eval $(call gb_Jar_prepend_xboot_jars,ScriptProviderForJavaScript,\
+	$(OUTDIR)/bin/js.jar \
+))
+
 $(eval $(call gb_Jar_set_manifest,ScriptProviderForJavaScript,$(SRCDIR)/scripting/java/com/sun/star/script/framework/provider/javascript/MANIFEST.MF))
 
 $(eval $(call gb_Jar_set_jarclasspath,ScriptProviderForJavaScript, \