# HG changeset patch
# User Jim Meyering <meyering@fb.com>
# Date 1383001696 25200
# Node ID 336fcfecc05e3be9206d73914664760a96e00734
# Parent  9b560a24dd4eabcd504d64a7f040eca4b312dd7c
gnulib-tool: protect against CDPATH

* gnulib-tool: Many "cd" built-in functions print a directory name
to stdout when CDPATH is set, e.g.,
  $ bash -c 'CDPATH=/; cd tmp'
  /tmp
Unset it, when possible.  Prompted by a comment from Bruce Korb.

diff -r 9b560a24dd4e -r 336fcfecc05e ChangeLog
--- a/ChangeLog	Mon Oct 28 15:25:25 2013 -0700
+++ b/ChangeLog	Mon Oct 28 16:08:16 2013 -0700
@@ -1,5 +1,12 @@
 2013-10-28  Jim Meyering  <meyering@fb.com>
 
+	gnulib-tool: protect against CDPATH
+	* gnulib-tool: Many "cd" built-in functions print a directory name
+	to stdout when CDPATH is set, e.g.,
+	  $ bash -c 'CDPATH=/; cd tmp'
+	  /tmp
+	Unset it, when possible.  Prompted by a comment from Bruce Korb.
+
 	maint.mk: restore functionality removed by recent change...
 	Sunday's change, v0.0-8062-g6b24f60, may have appeared correct from
 	the context of a shallow-cloned gnulib repository: "git describe"
diff -r 9b560a24dd4e -r 336fcfecc05e gnulib-tool
--- a/gnulib-tool	Mon Oct 28 15:25:25 2013 -0700
+++ b/gnulib-tool	Mon Oct 28 16:08:16 2013 -0700
@@ -898,6 +898,9 @@
   shift
 fi
 
+# Unset CDPATH.  Otherwise, output from 'cd dir' can surprise callers.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
 # Command-line option processing.
 # Removes the OPTIONS from the arguments. Sets the variables:
 # - mode            one of: list, find, import, add-import, remove-import,