Add top level build script for building packages.

ports/scummvm/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.
 
-source pkg_info
-source ../../build_tools/common.sh
 
 # Beneath a Steel Sky (floppy version)
 readonly BASS_FLOPPY_URL=http://commondatastorage.googleapis.com/nativeclient-mirror/nacl/scummvm_games/bass/BASS-Floppy-1.3.zip
 readonly BASS_FLOPPY_NAME=BASS-Floppy-1.3
 
 readonly LURE_URL=http://commondatastorage.googleapis.com/nativeclient-mirror/nacl/scummvm_games/lure/lure-1.1.zip
 readonly LURE_NAME=lure-1.1
 
 EXECUTABLES=scummvm
 
@@ skipping 10 matching lines @@
   # without this setting *make* will not show the full command lines
   export VERBOSE_BUILD=1
   export RANLIB=${NACLRANLIB}
   export PKG_CONFIG_PATH=${NACLPORTS_LIBDIR}/pkgconfig
   export PKG_CONFIG_LIBDIR=${NACLPORTS_LIBDIR}
   export CFLAGS=${NACLPORTS_CFLAGS}
   export CXXFLAGS=${NACLPORTS_CXXFLAGS}
   export LDFLAGS=${NACLPORTS_LDFLAGS}
   export PATH="${NACL_BIN_PATH}:${PATH}"
   export PATH="${NACLPORTS_PREFIX_BIN}:${PATH}"
-  local SRC_DIR=${NACL_PACKAGES_REPOSITORY}/${PACKAGE_DIR}
   if [ ! -f "${NACL_CONFIGURE_PATH:-${SRC_DIR}/configure}" ]; then
     echo "No configure script found"
     return
   fi
-  local DEFAULT_BUILD_DIR=${SRC_DIR}/${NACL_BUILD_SUBDIR}
-  local BUILD_DIR=${NACL_BUILD_DIR:-${DEFAULT_BUILD_DIR}}
   MakeDir ${BUILD_DIR}
   ChangeDir ${BUILD_DIR}
   echo "Directory: $(pwd)"
 
   local conf_host=${NACL_CROSS_PREFIX}
   if [ "${NACL_ARCH}" = "pnacl" ]; then
     conf_host="pnacl"
   elif [ "${NACL_ARCH}" = "arm" ]; then
     conf_host="nacl-arm"
   else
     conf_host="nacl-x86"
   fi
   export DEFINES="-DNACL -DSYSTEM_NOT_SUPPORTING_D_TYPE=1"
 
   # NOTE: disabled mt32emu because it using inline assembly that won't
   #     validate.
   ../configure \
     --host=${conf_host} \
     --libdir=${NACLPORTS_LIBDIR} \
     --disable-flac \
     --disable-zlib \
     --disable-mt32emu \
     --disable-timidity \
     --disable-all-engines \
     --enable-engine=lure \
     --enable-engine=sky
 }
 
 InstallStep() {
-  SRC_DIR=${NACL_PACKAGES_REPOSITORY}/${PACKAGE_NAME}
   SCUMMVM_DIR=runimage/usr/local/share/scummvm
   ChangeDir ${SRC_DIR}
 
   mkdir -p ${SCUMMVM_DIR}
   cp gui/themes/scummclassic.zip \
      dists/engine-data/sky.cpt \
      gui/themes/scummmodern.zip \
      gui/themes/translations.dat \
      dists/engine-data/lure.dat \
      dists/pred.dic \
@@ skipping 89 matching lines @@
   ExtractGameZipStep
   PACKAGE_NAME=${PACKAGE_NAME_TEMP}
   PACKAGE_DIR=${PACKAGE_DIR_TEMP}
 }
 
 PackageInstall() {
   GameGetStep ${BASS_FLOPPY_URL} ${BASS_FLOPPY_NAME}
   GameGetStep ${LURE_URL} ${LURE_NAME}
   DefaultPackageInstall
 }
-
-PackageInstall
-exit 0