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--- configure.orig	2007-07-30 02:45:45.000000000 -0400
+++ configure	2007-07-30 02:46:26.000000000 -0400
@@ -20025,7 +20025,7 @@ MOZILLA_1_8_BRANCH=1
 LIBS_PATH=
 for lib_arg in $NSPR_LIBS $TK_LIBS; do
   case $lib_arg in
-    -L* ) LIBS_PATH="${LIBS_PATH:+$LIBS_PATH:}"`expr $lib_arg : "-L\(.*\)"` ;;
+    -L* ) LIBS_PATH="${LIBS_PATH:+$LIBS_PATH:}"`expr -- $lib_arg : "-L\(.*\)"` ;;
       * ) ;;
   esac
 done