Fixed compilation problem with newer tail programs which don't understand "-1"

(bug #303630).

ChangeLog

@@ -1,3 +1,8 @@
+2006-07-25  Henning Meier-Geinitz <henning@meier-geinitz.de>
+
+	* tools/libtool-get-dll-ext: Fixed compilation problem with newer
+	  tail programs which don't understand "-1" (bug #303630).
+
 2006-07-17  m. allan noah <anoah AT pfeiffer DOT edu>
 
 	* backend/fujitsu.c: backend v1.0.39, rewrite contrast slope

tools/libtool-get-dll-ext

@@ -13,7 +13,7 @@ fi
 lafile=$1
 
 libnames=`grep library_names= $lafile`
-last=`echo $libnames | cut -d\' -f2|tr " " "\n"|tail -1`
+last=`echo $libnames | cut -d\' -f2|tr " " "\n"|tail -n 1`
 dllend=`echo $last | cut -d. -f2`
 
 echo $dllend