Switch from using 'nacl_main' to 'main' entry point

ports/lua/build.sh

 # Copyright (c) 2011 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.
 
 BUILD_DIR=${SRC_DIR}
 EXECUTABLES="src/lua${NACL_EXEEXT} src/luac${NACL_EXEEXT}"
 
-NACLPORTS_CPPFLAGS+=" -Dmain=nacl_main"
-NACLPORTS_LDFLAGS+=" ${NACL_CLI_MAIN_LIB}"
+EnableCliMain
 
 if [ "${NACL_LIBC}" = "glibc" ]; then
   PLAT=nacl-glibc
 else
   PLAT=nacl-newlib
 fi
 
 TEST_FILE=lua-5.3.0-tests.tar.gz
 TEST_URL=http://www.lua.org/tests/${TEST_FILE}
 TEST_SHA1=8fd633ab67edf5e824c2afc62f318de245fce268
@@ skipping 14 matching lines @@
   LogExecute tar zxf ${NACL_PACKAGES_CACHE}/${TEST_FILE}
   ChangeDir lua-5.3.0-tests
   LogExecute patch -p1 < ${START_DIR}/lua_tests.patch
 }
 
 BuildStep() {
   LogExecute make PLAT=${PLAT} clean
   set -x
   make MYLDFLAGS="${NACLPORTS_LDFLAGS}" MYCFLAGS="${NACLPORTS_CPPFLAGS}" \
       AR="${NACLAR} rcu" RANLIB="${NACLRANLIB}" CC="${NACLCC} -std=gnu99" \
+      MYLIBS="${NACLPORTS_LIBS}" \
       PLAT=${PLAT} EXEEXT=${NACL_EXEEXT} -j${OS_JOBS}
   set +x
 }
 
 TestStep() {
   if [ "${NACL_ARCH}" = pnacl ]; then
     ChangeDir src
     # Just do the x86-64 version for now.
     TranslateAndWriteLauncherScript lua.pexe x86-64 lua.x86-64.nexe lua
     TranslateAndWriteLauncherScript luac.pexe x86-64 luac.x86-64.nexe luac
@@ skipping 43 matching lines @@
   LogExecute cp ${START_DIR}/icon_48.png ${PUBLISH_DIR}
   LogExecute cp ${START_DIR}/icon_128.png ${PUBLISH_DIR}
   LogExecute rm -rf ${PUBLISH_DIR}/lua-5.3.0-tests
   LogExecute cp -r ${BUILD_DIR}/lua-5.3.0-tests ${PUBLISH_DIR}
   ChangeDir ${PUBLISH_DIR}
   rm -f manifest.txt lua.zip
   ${NACL_SDK_ROOT}/tools/genhttpfs.py . -r > ../manifest.txt
   mv ../manifest.txt .
   CreateWebStoreZip lua.zip .
 }