Fixed unreached code, deprecated fopen(), unused arguments, and other warnings with MSVC

git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@2407 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/pjlib/include/pj/compat/cc_gcc.h b/pjlib/include/pj/compat/cc_gcc.h
index 35aecf2..edf0479 100644
--- a/pjlib/include/pj/compat/cc_gcc.h
+++ b/pjlib/include/pj/compat/cc_gcc.h
@@ -69,6 +69,7 @@
 #   define PJ_HAS_BZERO		1
 #endif
 
+#define PJ_UNREACHED(x)	    	
 
 #endif	/* __PJ_COMPAT_CC_GCC_H__ */