7041284: arm/ppc Missing launcher mapfiles prevent build

Summary: Disable use of launcher mapfiles when cross-compiling
Reviewed-by: ohair, ksrini

make/common/Program.gmk

@@ -55,10 +55,13 @@ program_default_rule: all
 
 program: $(ACTUAL_PROGRAM)
 
-# reuse the mapfiles in the launcher's directory, the same should
-# be applicable to the tool launchers as well.
-FILES_m = $(BUILDDIR)/java/main/java/mapfile-$(ARCH)
-include $(BUILDDIR)/common/Mapfile-vers.gmk
+# Work-around for missing processor specific mapfiles
+ifndef CROSS_COMPILE_ARCH
+  # reuse the mapfiles in the launcher's directory, the same should
+  # be applicable to the tool launchers as well.
+  FILES_m = $(BUILDDIR)/java/main/java/mapfile-$(ARCH)
+  include $(BUILDDIR)/common/Mapfile-vers.gmk
+endif
 
 include $(JDK_TOPDIR)/make/common/Rules.gmk