Switch devenv to use pkg packages

ports/xorg-server/build.sh

 #!/bin/bash
 # Copyright (c) 2014 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.
 
 NACLPORTS_CPPFLAGS+=" -I${NACLPORTS_INCLUDE}/pixman-1"
 NACLPORTS_CPPFLAGS+=" -DFASYNC=O_NONBLOCK -DFNDELAY=O_NONBLOCK"
 
 EXECUTABLES=hw/kdrive/sdl/Xsdl${NACL_EXEEXT}
 
@@ skipping 65 matching lines @@
                 ${ASSEMBLY_DIR}/Xsdl_${NACL_ARCH}${NACL_EXEEXT}
   LogExecute python ${NACL_SDK_ROOT}/tools/create_nmf.py \
       ${ASSEMBLY_DIR}/Xsdl_*${NACL_EXEEXT} \
       -s . \
       -o Xsdl.nmf
 
   # Bash is already platform specific split, copy the whole thing.
   local BASH_DIR=${NACL_PACKAGES_PUBLISH}/bash/${TOOLCHAIN}/bash_multiarch
   LogExecute cp -fR ${BASH_DIR}/* ${ASSEMBLY_DIR}
 
-  local XKBCOMP_DIR=${NACL_PACKAGES_PUBLISH}/xkbcomp/${TOOLCHAIN}/${NACL_ARCH}
-  LogExecute cp ${XKBCOMP_DIR}/xkbcomp \
+  LogExecute cp ${NACLPORTS_BIN}/xkbcomp${NACL_EXEEXT} \
       ${ASSEMBLY_DIR}/xkbcomp_${NACL_ARCH}${NACL_EXEEXT}
   LogExecute python ${NACL_SDK_ROOT}/tools/create_nmf.py \
       ${ASSEMBLY_DIR}/xkbcomp_*${NACL_EXEEXT} \
       -s . \
       -o xkbcomp.nmf
 
   # Install the HTML/JS for the terminal.
   LogExecute python ${TOOLS_DIR}/create_term.py -i whitelist.js Xsdl.nmf
   InstallNaClTerm ${ASSEMBLY_DIR}
 
@@ skipping 11 matching lines @@
   LogExecute tar cvf ${ASSEMBLY_DIR}/xorg-xkb.tar share/X11/xkb
   LogExecute shasum ${ASSEMBLY_DIR}/xorg-xkb.tar > \
       ${ASSEMBLY_DIR}/xorg-xkb.tar.hash
   local XFONTS_DIR=${NACL_PACKAGES_PUBLISH}/xfonts/${TOOLCHAIN}
   LogExecute cp ${XFONTS_DIR}/xorg-fonts.tar ${ASSEMBLY_DIR}/
   LogExecute cp ${XFONTS_DIR}/xorg-fonts.tar.hash ${ASSEMBLY_DIR}/
 
   ChangeDir ${PUBLISH_DIR}
   LogExecute zip -r xorg-server.zip xorg-server
 }