Add bitcoin to naclports

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.
 #
 # Makefile
 #
 # usage: 'make [package]'
 #
 # This makefile builds all of the Native Client ports listed below
 # in $(ALL_PORTS). Each port has a dependency on its own sentinel
@@ skipping 65 matching lines @@
 else
 NACLPORTS_PREFIX ?= $(NACL_TOOLCHAIN_ROOT)/usr
 endif
 
 ALL_PORTS = \
      ports/agg \
      ports/bash \
      ports/bochs \
      ports/boost \
      ports/box2d \
+     ports/bitcoin \
      ports/bullet \
      ports/bzip2 \
      ports/cairo \
      ports/cfitsio \
      ports/civetweb \
      ports/curl \
      ports/DevIL \
      ports/dosbox \
      ports/dreadthread \
      ports/drod \
@@ skipping 217 matching lines @@
 $(SENT)/ports/DevIL: ports/libpng ports/jpeg8d ports/libmng ports/tiff \
     ports/lcms
 $(SENT)/ports/physfs: ports/zlib
 $(SENT)/ports/mpg123: ports/openal-soft
 $(SENT)/ports/ImageMagick: ports/libpng ports/jpeg8d ports/bzip2 ports/zlib
 $(SENT)/ports/gdb: ports/ncurses ports/expat ports/readline
 $(SENT)/ports/zeromq: ports/glibc-compat
 
 # shortcuts libraries (alphabetical)
 agg: ports/agg ;
+bitcoin: ports/bitcoin ;
 boost: ports/boost ;
 box2d: ports/box2d ;
 bullet: ports/bullet ;
 bzip2: ports/bzip2 ;
 cairo: ports/cairo ;
 cfitsio: ports/cfitsio ;
 curl: ports/curl ;
 DevIL: ports/DevIL ;
 dreadthread: ports/dreadthread ;
 expat: ports/expat ;
@@ skipping 85 matching lines @@
 ruby_ppapi: ports/ruby_ppapi ;
 scummvm: ports/scummvm ;
 snes9x: ports/snes9x ;
 texlive: ports/texlive ;
 thttpd: ports/thttpd ;
 openssh: ports/openssh ;
 # Deliberate space after vim target to avoid detection
 # as modeline string.
 vim : ports/vim ;
 xaos: ports/xaos ;