Build gtest from source rather than using SDK-provided version

ports/sqlite/build.sh

 # Copyright (c) 2013 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.
 
 MAKE_TARGETS="CCLD=\$(CXX) all"
 NACLPORTS_CPPFLAGS+=" -DNACL_SDK_VERSION=$NACL_SDK_VERSION"
 if [ "${NACL_DEBUG}" = "1" ] ; then
   NACLPORTS_CPPFLAGS+=" -DSQLITE_DEBUG -DSQLITE_LOCK_TRACE"
 fi
 if [ "${NACL_SHARED}" = "1" ]; then
@@ skipping 35 matching lines @@
 
 TestStep() {
   MakeDir naclport_test
 
   if [[ ${NACL_ARCH} == "pnacl" ]]; then
     EXT=.bc
   else
     EXT=${NACL_EXEEXT}
   fi
 
-  INCLUDES="-I${SRC_DIR}"
+  INCLUDES="-I${SRC_DIR} -I${GTEST_SRC}/include"
+  LogExecute ${NACLCXX} ${INCLUDES} ${NACLPORTS_CPPFLAGS} -I${GTEST_SRC} \
+    ${NACLPORTS_CFLAGS} -o gtest-all.o -c ${GTEST_SRC}/src/gtest-all.cc
+
   LogExecute ${NACLCXX} ${INCLUDES} ${NACLPORTS_CPPFLAGS} \
-    ${NACLPORTS_CFLAGS} ${NACLPORTS_LDFLAGS} \
-    -DPPAPI -o naclport_test/test${EXT} \
-    ${START_DIR}/test.cc sqlite3.o ${NACLPORTS_LIBS} -lgtest
+    ${NACLPORTS_CFLAGS} -o test.o -c ${START_DIR}/test.cc
+
+  LogExecute ${NACLCXX} ${NACLPORTS_LDFLAGS} \
+    -o naclport_test/test${EXT} test.o gtest-all.o sqlite3.o ${NACLPORTS_LIBS}
 
   [[ ${NACL_ARCH} == "pnacl" ]] && ${PNACLFINALIZE} \
     -o naclport_test/test${NACL_EXEEXT} naclport_test/test${EXT}
 
   echo "Running test"
 
   if [ "${NACL_ARCH}" = "pnacl" ]; then
     local pexe=test${NACL_EXEEXT}
     (cd naclport_test;
      TranslateAndWriteLauncherScript ${pexe} x86-32 test.x86-32${EXT} \
        test)
     RunTest
     (cd naclport_test;
      TranslateAndWriteLauncherScript ${pexe} x86-64 test.x86-64${EXT} \
        test)
     RunTest
     echo "Tests OK"
   elif [ "$(uname -m)" = "${NACL_ARCH_ALT}" ]; then
     WriteLauncherScript naclport_test/test test${EXT}
     RunTest
     echo "Tests OK"
   fi
 }