Add needed functions to glibc-compat for pkg

ports/gtk+/build.sh

 # Copyright 2015 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.
 
 ConfigureStep() {
   if [ "${NACL_LIBC}" = "newlib" ]; then
     # newlib requires different library order to deal with static libraries
-    export LIBS+=" -lXext -lX11 -lxcb -lXau"
+    export LIBS+=" -lXext -lX11 -lxcb -lXau -lglibc-compat"
     NACLPORTS_CPPFLAGS+=" -I${NACLPORTS_INCLUDE}/glibc-compat"
   fi
 
   # fix pkgconfig files to explicitly include libffi
   # for things that depend on glib
   sed -i 's/-lglib-2.0 -lintl/-lglib-2.0 -lffi -lintl/'\
    ${NACLPORTS_LIBDIR}/pkgconfig/glib-2.0.pc
 
+  if [ "${NACL_LIBC}" = "newlib" ]; then
+      sed -i 's/-lffi -lintl/-lffi -lglibc-compat -lintl/'\
+          ${NACLPORTS_LIBDIR}/pkgconfig/glib-2.0.pc
+  fi
+
   EXTRA_CONFIGURE_ARGS+=" --disable-shm --enable-explicit-deps --disable-cups \
    --enable-gtk-doc-html=no"
 
   NACLPORTS_CPPFLAGS+=" -Dmain=nacl_main -pthread"
   NACLPORTS_LDFLAGS+=" ${NACL_CLI_MAIN_LIB}"
   export enable_gtk_doc=no
 
   DefaultConfigureStep
 }
 
 PublishStep() {
   MakeDir ${PUBLISH_DIR}
   local APP_DIR="${PUBLISH_DIR}/${NACL_ARCH}/gtk+"
   MakeDir ${APP_DIR}
   ChangeDir ${APP_DIR}
   local exe="${APP_DIR}/gtk-demo${NACL_EXEEXT}"
   LogExecute cp ${INSTALL_DIR}/naclports-dummydir/bin/gtk-demo${NACL_EXEEXT} \
    ${exe}
   LogExecute python ${NACL_SDK_ROOT}/tools/create_nmf.py \
           ${exe} -s . -L ${INSTALL_DIR}/naclports-dummydir/lib \
           -o gtk-demo.nmf
   LogExecute python ${TOOLS_DIR}/create_term.py -n gtk-demo gtk-demo.nmf
   InstallNaClTerm ${APP_DIR}
   LogExecute cp -f ${START_DIR}/*.js ${APP_DIR}
 }