[PATCH] xfsprogs - resolve Debian readline build issue

[Nathan Scott]

Address the recently reported build issue with libreadline5/6, via
the gplv2 route.  Since this appears to be a relatively recent pkg,
I made its use conditional so the deb build continues to work for
everyone not running a bleeding edge distro.  Works For Me (tm).

This addresses Debian bug 553875: libreadline5-dev removal pending

Signed-off-by: Nathan Scott <nathans at debian.org>

diff --git a/debian/control b/debian/control
index 401cdab..f813a43 100644
--- a/debian/control
+++ b/debian/control
@@ -3,7 +3,7 @@ Section: admin
 Priority: optional
 Maintainer: XFS Development Team <xfs at oss.sgi.com>
 Uploaders: Nathan Scott <nathans at debian.org>, Anibal Monsalve Salazar <anibal at debian.org>
-Build-Depends: uuid-dev, autoconf, debhelper (>= 5), gettext, libtool, libreadline5-dev, libblkid-dev (>= 2.17)
+Build-Depends: uuid-dev, autoconf, debhelper (>= 5), gettext, libtool, libreadline5-dev | libreadline-gplv2-dev, libblkid-dev (>= 2.17)
 Standards-Version: 3.9.1
 Homepage: http://oss.sgi.com/projects/xfs/