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

tools/Makefile

 # 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.
 
 ##############################################################################
 # Helper script for NaCl toolchain development workflow.
 #
 # Buildbots:
 # - Sync needed sources at pinned revision and build newlib-based toolchain:
 #     make buildbot-build-with-newlib TOOLCHAINLOC=<where-to-install-the-toolchain>
@@ skipping 549 matching lines @@
 NEWLIB_CFLAGS = -O2 -D_I386MACH_ALLOW_HW_INTERRUPTS -mtls-use-call
 
 BUILD/stamp-$(CROSSARCH)-newlib: | SRC/newlib BUILD newlib-libc-script
         rm -rf BUILD/build-newlib-$(CROSSARCH)
         mkdir BUILD/build-newlib-$(CROSSARCH)
         PATH=$(BUILDPATH) && export PATH && \
           cd BUILD/build-newlib-$(CROSSARCH) && \
           ../../SRC/newlib/configure \
                       --disable-libgloss \
                       --enable-newlib-iconv \
-                      --enable-newlib-iconv-from-encodings=UTF-8,UTF-16,UCS-4 \
-                      --enable-newlib-iconv-to-encodings=UTF-8,UTF-16,UCS-4 \
+                      --enable-newlib-iconv-from-encodings=UTF-8,UTF-16LE,UCS-4LE,UTF-16,UCS-4 \
+                      --enable-newlib-iconv-to-encodings=UTF-8,UTF-16LE,UCS-4LE,UTF-16,UCS-4 \
                       --enable-newlib-io-long-long \
                       --enable-newlib-io-long-double \
                       --enable-newlib-io-c99-formats \
                       --enable-newlib-mb \
             --prefix=$(PREFIX) \
             CFLAGS="$(USER_CFLAGS)" \
             CFLAGS_FOR_TARGET='$(NEWLIB_CFLAGS)' \
             CXXFLAGS_FOR_TARGET='$(NEWLIB_CFLAGS)' \
             --target=$(CROSSARCH) && \
           $(MAKE) && \
@@ skipping 531 matching lines @@
 
 
 ##################################################################
 # Remove the BUILD directory.
 # Library builds are maintained by scons.
 ##################################################################
 
 .PHONY: clean
 clean:
         rm -rf BUILD/*