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

ports/gforth/build.sh

Index: ports/gforth/build.sh
diff --git a/ports/gforth/build.sh b/ports/gforth/build.sh
index 57b20c154136d2029d100a04db254f1d2302b88b..fe30e09281f513b466a5658e13c71b18af32756f 100644
--- a/ports/gforth/build.sh
+++ b/ports/gforth/build.sh
@@ -27,9 +27,7 @@ ConfigureStep() {
   BuildHostGforth
   export PATH="${HOST_INSTALL_DIR}/bin:${PATH}"
   export skipcode=no
-  NACLPORTS_CPPFLAGS+=" -Dmain=nacl_main"
-  export LIBS+=" -Wl,--undefined=nacl_main ${NACL_CLI_MAIN_LIB} \
-      -ltar -lppapi_simple -lnacl_io -lppapi -l${NACL_CXX_LIB}"
+  export LIBS+=" ${NACL_CLI_MAIN_LIB}"

[binji, 2015/10/27 21:52:38]

or here

[Sam Clegg, 2015/10/28 17:06:31]

Done.

   EnableGlibcCompat
   ChangeDir ${BUILD_DIR}
   EXTRA_CONFIGURE_ARGS="--without-check"