Many changes:

- appends "_" to internal macro names (by Markus Heule).
- makes Google Test work with newer versions of tools on Symbian and Windows CE (by Mika Raento).
- adds the (ASSERT|EXPECT)_NO_FATAL_FAILURE macros (by Markus Heule).
- changes EXPECT_(NON|)FATAL_FAILURE to catch failures in the current thread only (by Markus Heule).
- adds the EXPECT_(NON|)FATAL_FAILURE_ON_ALL_THREADS macros (by Markus Heule).
- adds GTEST_HAS_PTHREAD and GTEST_IS_THREADSAFE to indicate the availability of <pthread.h> and Google Test's thread-safety (by Zhanyong Wan).
- adds scons/SConscript for building with scons (by Joi Sigurdsson).
- adds src/gtest-all.cc for building Google Test from a single file (by Markus Heule).
- updates the xcode project to include new tests (by Preston Jackson).

src/gtest-filepath.cc

@@ -36,10 +36,14 @@
 
 #ifdef _WIN32_WCE
 #include <windows.h>
-#elif defined(_WIN32)
+#elif defined(GTEST_OS_WINDOWS)
 #include <direct.h>
 #include <io.h>
 #include <sys/stat.h>
+#elif defined(GTEST_OS_SYMBIAN)
+// Symbian OpenC has PATH_MAX in sys/syslimits.h
+#include <sys/syslimits.h>
+#include <unistd.h>
 #else
 #include <sys/stat.h>
 #include <unistd.h>
@@ -249,7 +253,7 @@ bool FilePath::CreateDirectoriesRecursively() const {
 // directory for any reason, including if the parent directory does not
 // exist. Not named "CreateDirectory" because that's a macro on Windows.
 bool FilePath::CreateFolder() const {
-#ifdef _WIN32
+#ifdef GTEST_OS_WINDOWS
 #ifdef _WIN32_WCE
   FilePath removed_sep(this->RemoveTrailingPathSeparator());
   LPCWSTR unicode = String::AnsiToUtf16(removed_sep.c_str());