Fix newlib build for iconv so that we support UTF-16LE and UCS-4LE.

pnacl/build.sh

 #!/bin/bash
 # Copyright (c) 2012 The Native Client Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 #
 #@                 PNaCl toolchain build script
 #@-------------------------------------------------------------------
 #@ This script builds the ARM and PNaCl untrusted toolchains.
 #@ It MUST be run from the native_client/ directory.
 ######################################################################
@@ skipping 2318 matching lines @@
     env -i \
     PATH="/usr/bin:/bin" \
     "${STD_ENV_FOR_NEWLIB[@]}" \
     ${srcdir}/configure \
         --disable-multilib \
         --prefix="${NEWLIB_INSTALL_DIR}" \
         --disable-newlib-supplied-syscalls \
         --disable-texinfo \
         --disable-libgloss \
         --enable-newlib-iconv \
-        --enable-newlib-iconv-from-encodings=UTF-8,UTF-16,UCS-4 \
-        --enable-newlib-iconv-to-encodings=UTF-8,UTF-16,UCS-4 \
+        --enable-newlib-iconv-from-encodings=UTF-8,UTF-16LE,UCS-4LE,UTF-16,UCS-4 \
+        --enable-newlib-iconv-to-encodings=UTF-8,UTF-16LE,UCS-4LE,UTF-16,UCS-4 \
         --enable-newlib-io-long-long \
         --enable-newlib-io-long-double \
         --enable-newlib-io-c99-formats \
         --enable-newlib-mb \
         --target="${NEWLIB_TARGET}"
 
   spopd
 }
 
 newlib-needs-make() {
@@ skipping 1084 matching lines @@
 
 if [ "$(type -t $1)" != "function" ]; then
   #Usage
   echo "ERROR: unknown function '$1'." >&2
   echo "For help, try:"
   echo "    $0 help"
   exit 1
 fi
 
 "$@"