Two dist-check related changes:

1. Allow DIST_CHECK_CONFIG_OPTION to specify a set of options to be passed
   to the configure script during the dist-check target. This allows things
   to be passed down on a project basis so the configure doesn't fail.

2. Use the tar | (cd ; tar ) idiom to copy files which is more flexible
   than using the cp command. THis allows us to exclude CVS .svn
   directories at source rather than stripping them out of the tar ball.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22166 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Makefile b/Makefile
index e9cbc78..d221175 100644
--- a/Makefile
+++ b/Makefile
@@ -18,6 +18,10 @@
 
 include $(LEVEL)/Makefile.common
 
+# Specify options to pass to configure script when we're
+# running the dist-check target
+DIST_CHECK_CONFIG_OPTIONS = --with-llvmgccdir=$(LLVMGCCDIR)
+
 .PHONY: debug-opt-prof
 debug-opt-prof:
 	$(Echo) Building Debug Version