pkgs/development/libraries/glibc-2.5: patch the 'configure' script to support ld 2.21 or later

This patch fixes a flawed shell expression that attempts (but fails) to ensure
that GNU ld version 2.13 or later is available.

svn path=/nixpkgs/trunk/; revision=25382

pkgs/development/libraries/glibc-2.5/builder.sh

@@ -19,6 +19,9 @@ preConfigure() {
             --replace "@PWD@" "pwd"
     done
 
+    # Fix shell code that tries to determine whether GNU ld is recent enough.
+    substituteInPlace configure --replace '2.1[3-9]*)' '2.1[3-9]*|2.[2-9][0-9]*)'
+
     mkdir ../build
     cd ../build