[glibc] Allow building on case insensitive filesystems

scripts/check-local-headers.sh

 #! /bin/bash
 # Copyright (C) 2005, 2007 Free Software Foundation, Inc.
 # This file is part of the GNU C Library.
 
 # The GNU C Library is free software; you can redistribute it and/or
 # modify it under the terms of the GNU Lesser General Public
 # License as published by the Free Software Foundation; either
 # version 2.1 of the License, or (at your option) any later version.
 
 # The GNU C Library is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 # Lesser General Public License for more details.
 
 # You should have received a copy of the GNU Lesser General Public
 # License along with the GNU C Library; if not, write to the Free
 # Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
 # 02111-1307 USA.
 #
 includedir="$1"
 objpfx="$2"
 
 # To avoid long paths.
 cd "$objpfx"
 
 
 # Search all dependency files for file names in the include directory.
 # There are a few system headers we are known to use.
-if fgrep "$includedir" */*.{o,os,oS}.d |
+if fgrep "$includedir" */*.{o,os,ons}.d |
 fgrep -v "$includedir/asm" |
 fgrep -v "$includedir/linux" |
 fgrep -v "$includedir/selinux" |
 fgrep -v "$includedir/sys/capability.h" |
 fgrep -v "$includedir/gd"; then
   # If we found a match something is wrong.
   exit 1
 fi
 
 exit 0