Add advice to an error message.

diff --git a/ChangeLog b/ChangeLog
index 70b592d..c72f224 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2009-09-18  Bruno Haible  <bruno@clisp.org>
+
+       * gnulib-tool: Add advice to "cannot find configure.ac" error message.
+       Reported by <erobles@sensacd.com.mx>.
+
 2009-09-17  Eric Blake  <ebb9@byu.net>
 
        canonicalize: in CAN_ALL_BUT_LAST, allow trailing slash

diff --git a/gnulib-tool b/gnulib-tool
index 46f5f87..a847431 100755 (executable)
--- a/gnulib-tool
+++ b/gnulib-tool
@@ -4420,7 +4420,7 @@ case $mode in
       if test -f "$destdir"/configure.in; then
         configure_ac="$destdir/configure.in"
       else
-        func_fatal_error "cannot find $destdir/configure.ac"
+        func_fatal_error "cannot find $destdir/configure.ac - make sure you run gnulib-tool from within your package's directory"
       fi
     fi