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

ports/geturl/build.sh

Index: ports/geturl/build.sh
diff --git a/ports/geturl/build.sh b/ports/geturl/build.sh
index 3cbfee8fecb966380a81d10f1667bb47d85c8a11..ad8d50257d0154748dd064cfffd462bad9cbc8bc 100644
--- a/ports/geturl/build.sh
+++ b/ports/geturl/build.sh
@@ -2,6 +2,8 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+EnableCliMainCxx
+
 ConfigureStep() {
   MakeDir ${BUILD_DIR}
   cp -rf ${START_DIR}/* ${BUILD_DIR}
@@ -12,6 +14,7 @@ BuildStep() {
   export CFLAGS="${NACLPORTS_CPPFLAGS} ${NACLPORTS_CFLAGS}"
   export CXXFLAGS="${NACLPORTS_CPPFLAGS} ${NACLPORTS_CXXFLAGS}"
   export LDFLAGS="${NACLPORTS_LDFLAGS}"
+  export LIBS="${NACLPORTS_LIBS}"
   DefaultBuildStep
 }