--- a/mozilla-xulrunner192/find-external-requires.sh	Fri May 20 07:05:50 2011 +0200
+++ b/mozilla-xulrunner192/find-external-requires.sh	Tue Jun 14 11:58:26 2011 +0200
@@ -1,23 +1,9 @@
 #!/bin/sh
-
 # Finds requirements provided outside of the current file set
 
-filelist=`sed "s/[]['\"*?{}]/\\\\\&/g"`
-
-provides=`echo "$filelist" | /usr/lib/rpm/find-provides`
-
-{
-for f in $filelist ; do
-	echo $f | /usr/lib/rpm/find-requires | while read req ; do
-		found=0
-		for p in $provides ; do
-			if [ "$req" = "$p" ]; then
-				found=1
-			fi
-		done
-		if [ "$found" = "0" ]; then
-			echo $req
-		fi
-	done
-done
-} | sort -u
+filelist=$( sed "s/[]['\"*?{}]/\\\\\&/g" )
+provides=$( echo "$filelist" | /usr/lib/rpm/find-provides )
+echo "$filelist" \
+    | /usr/lib/rpm/find-requires \
+    | grep -F -v "$provides" \
+    | sort -u