COMMON: Add nullptr_t check for MacOSX i386

Author: lephilousophe

common/scummsys.h

@@ -506,5 +506,13 @@
 #endif
 #endif
 
+//
+// std::nullptr_t when this type is not available
+//
+#if defined(NO_CXX11_NULLPTR_T)
+namespace std {
+	typedef decltype(nullptr) nullptr_t;
+}
+#endif
 
 #endif

configure

@@ -1028,6 +1028,23 @@ android | gamecube | psp | wii)
 	;;
 esac
 
+# Check if std::nullptr_t is available
+echo_n "Checking if C++11 std::nullptr_t is available..."
+cat > $TMPC << EOF
+#include <cstddef>
+int main(int argc, char *argv[]) {
+	std::nullptr_t i = nullptr;
+	return 0;
+}
+EOF
+cc_check
+if test "$TMPR" -eq 0; then
+		echo yes
+else
+		echo no
+		define_in_config_if_yes yes 'NO_CXX11_NULLPTR_T'
+fi
+
 if test -n "$STRINGS"; then
 	_strings=$STRINGS
 else