Add target to regenerate top-level "configure" script.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8927 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/Makefile b/Makefile
index 735ba5fe0ccccb0fe8033c6e2b4b804e1c40044e..46851a4e72db2f6bd3152e2f72786d145b7eb5a5 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -14,3 +14,8 @@ distclean:: clean
                          $(LEVEL)/config.log \
                          $(LEVEL)/TAGS
 
+AUTOCONF = autoconf
+
+configure: autoconf/configure.ac
+       cd autoconf && $(AUTOCONF) -o ../configure configure.ac
+