Switch devenv to use pkg packages

ports/devenv/install-base-packages.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.
 
 # This is for bash on NaCl. Note that you cannot use external commands
 # until the installation is completed. Also, you cannot use features
 # which nacl_io does not support yet (e.g., pipes and sub-shells).
 
 CheckNaClEnabled() {
   # Skip check on if this isn't newlib.
-  if [[ "${TOOLCHAIN}" != newlib ]]; then
+  if [[ ${TOOLCHAIN} != newlib ]]; then
     return
   fi
   TMP_CHECK_FILE="/tmp/.enable_nacl_check.nexe"
   # Assume we can reuse the test file if present.
   if [[ ! -e ${TMP_CHECK_FILE} ]]; then
     geturl -q _platform_specific/${NACL_ARCH}/bash.nexe \
       ${TMP_CHECK_FILE} || exit 1
   fi
   ${TMP_CHECK_FILE} -c 'exit 42'
   if [[ $? != 42 ]]; then
@@ skipping 12 matching lines @@
     // and keep window open so that error message could be shown.
     while [[ 1 == 1 ]]; do
       read
     done
   fi
 }
 
 InstallBasePackages() {
   # Core packages.
   local default_packages="\
+    -i corelibs \
+    -i nacl-spawn \
     -i coreutils \
     -i bash \
     -i curl \
     -i findutils \
+    -i pcre \
     -i grep \
     -i git \
     -i less \
     -i make \
     -i nano \
     -i python \
-    -i grep \
     -i vim"
 
   local have_gcc=0
-  if [[ "${NACL_ARCH}" == "i686" || "${NACL_ARCH}" == "x86_64" ]]; then
-    default_packages+=" \
-  -i emacs \
-  -i mingn.base \
-  -i mingn.lib"
-    have_gcc=1
+  if [[ ${TOOLCHAIN} == glibc ]]; then
+    if [[ ${NACL_ARCH} == i686 || ${NACL_ARCH} == x86_64 ]]; then
+      default_packages+=" \
+    -i binutils \
+    -i gcc \
+    -i mingn"
+      have_gcc=1
+    fi
   fi
 
   # Check for updates on some packages.
   package ${default_packages[@]} $@
 
   if [[ ${have_gcc} == 0 ]]; then
     echo "WARNING: \
 emacs and gcc not yet available for your platform (coming soon)."
   fi
 }
 
 CheckNaClEnabled
 InstallBasePackages $@