Bug 1423649 - Fix compiler errors that happen when building with VS2017 15.5. r=rillian

memory/mozalloc/mozalloc.h

@@ -130,7 +130,11 @@ MOZ_END_EXTERN_C
 /*
  * Suppress build warning spam (bug 578546).
  */
+#if _MSC_VER < 1912
 #define MOZALLOC_THROW_IF_HAS_EXCEPTIONS
+#else
+#define MOZALLOC_THROW_IF_HAS_EXCEPTIONS throw()
+#endif
 #define MOZALLOC_THROW_BAD_ALLOC_IF_HAS_EXCEPTIONS
 #elif __cplusplus >= 201103
 /*

old-configure.in

@@ -1039,6 +1039,8 @@ case "$target" in
         # make 'foo == bar;' error out
         CFLAGS="$CFLAGS -we4553"
         CXXFLAGS="$CXXFLAGS -we4553"
+        # Silence VS2017 15.5+ TR1 deprecation warnings hit by older gtest versions
+        CXXFLAGS="$CXXFLAGS -D_SILENCE_TR1_NAMESPACE_DEPRECATION_WARNING"
         LIBS="$LIBS kernel32.lib user32.lib gdi32.lib winmm.lib wsock32.lib advapi32.lib secur32.lib"
         MOZ_DEBUG_LDFLAGS='-DEBUG -DEBUGTYPE:CV'
         WARNINGS_AS_ERRORS='-WX'