-# This is useful because it prints out all of the source files. Useful for
-# greps.
-PATTERN="$*"
-TOPDIR=`pwd | sed -e 's#(.*/llvm).*#$1#'`
+##===- utils/llvmgrep - Counts Lines Of Code -----------------*- Script -*-===##
+#
+# The LLVM Compiler Infrastructure
+#
+# This file is distributed under the University of Illinois Open Source
+# License. See LICENSE.TXT for details.
+#
+##===----------------------------------------------------------------------===##
+#
+# This script searches your srcdir for an egrep style pattern. This can quickly
+# help you build a list of the places you need to modify when changing a header
+# or other "global" name. The only argument is the pattern you want to search
+# for. It should be quoted to escape shell interpretation of the pattern's
+# special characters.
+#
+# Note that the implementation is based on llvmdo. See that script for more
+# details.
+##===----------------------------------------------------------------------===##
+
+if test "$1" = "-topdir" ; then
+ TOPDIR="$2"
+ shift; shift;
+else
+ TOPDIR=`llvm-config --src-root`
+fi
+