[dasher] 2nd attempt at: Make PACKAGE_URL work with all versions of autoconf. (#615564)

[Patrick Welche <pwelche src gnome org>]

commit fdb78a71fb4f56fb9f7f90bc51adadbb3454d8d1
Author: Patrick Welche <prlw1 cam ac uk>
Date:   Sat Apr 17 22:37:13 2010 +0100

    2nd attempt at: Make PACKAGE_URL work with all versions of autoconf. (#615564)

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 5aca74f..144b0ea 100644
--- a/configure.ac
+++ b/configure.ac
@@ -7,7 +7,7 @@ AC_INIT([dasher],
 
 # This becomes part of AC_INIT in autoconf 2.64
 m4_ifndef([AC_PACKAGE_URL],
-	[m4_define([AC_PACKAGE_URL],[http://www.inference.phy.cam.ac.uk/dasher/])
+	[m4_define([AC_PACKAGE_URL],["http://www.inference.phy.cam.ac.uk/dasher/";])
 	AC_DEFINE_UNQUOTED([PACKAGE_URL],
                        [AC_PACKAGE_URL],
                        [Define to the home page for this package.])