[grilo] Expand twice the value of ${libdir} in GRL_PLUGINS_DIR

[Juan A. Suarez Romero <jasuarez src gnome org>]

commit f1f5517567244b6f58a7c1bddf00e980c8713a60
Author: Alberto Garcia <agarcia igalia com>
Date:   Mon Mar 26 14:37:00 2012 +0300

    Expand twice the value of ${libdir} in GRL_PLUGINS_DIR
    
    This is necessary because ${libdir} may contain more variables inside,
    e.g. --libdir=\${prefix}/lib/x86_64-linux-gnu

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 7f1cec7..ac2202b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -76,7 +76,7 @@ fi
 
 # Plugins directory
 
-GRL_PLUGINS_DIR="${libdir}/${GRL_NAME}"
+GRL_PLUGINS_DIR=`eval echo ${libdir}/${GRL_NAME}`
 AC_SUBST(GRL_PLUGINS_DIR)
 AC_DEFINE_UNQUOTED(GRL_PLUGINS_DIR, "$GRL_PLUGINS_DIR", [Plugins directory])
 # Plugins configuration directory