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

ports/emacs/build.sh

 # 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.
 
 OS_JOBS=1
 
 export RUNPROGRAM="${NACL_SDK_ROOT}/tools/sel_ldr.py"
 
 EXTRA_CONFIGURE_ARGS+=" --prefix=/usr --exec-prefix=/usr"
 
@@ skipping 24 matching lines @@
   # but required for static linking.
   COMPAT_LIBS="-pthread ${COMPAT_LIBS}"
   if [ ${EMACS_X:-0} = 1 ]; then
     COMPAT_LIBS="-lxcb -lXau -lXpm ${COMPAT_LIBS}"
   fi
   COMPAT_LIBS="-lnacl_io ${COMPAT_LIBS}"
   COMPAT_LIBS+=" -lglibc-compat"
   NACLPORTS_LIBS+=" ${COMPAT_LIBS}"
 fi
 
+EnableCliMain
 EnableGlibcCompat
 
 ConfigureStep() {
   export CFLAGS="${NACLPORTS_CFLAGS} -I${NACL_SDK_ROOT}/include"
   DefaultConfigureStep
 }
 
 # Build twice to workaround a problem in the build script that builds something
 # partially the first time that makes the second time succeed.
 # TODO(petewil): Find and fix the problem that makes us build twice.
@@ skipping 81 matching lines @@
     fi
     LogExecute cp ${XORG_DIR}/*.tar ${ASSEMBLY_DIR}/
     LogExecute cp ${XORG_DIR}/*.js ${ASSEMBLY_DIR}/
     LogExecute cp ${XORG_DIR}/*.html ${ASSEMBLY_DIR}/
 
     LogExecute cp ${START_DIR}/../emacs-x/Xsdl.js ${ASSEMBLY_DIR}/
   fi
   ChangeDir ${PUBLISH_DIR}
   CreateWebStoreZip emacs-${VERSION}.zip emacs
 }