OS version detection without deprecated API

src/cocoa/i_backend_cocoa.mm

@@ -153,6 +153,7 @@ typedef NSInteger NSApplicationActivationPolicy;
 #include "v_video.h"
 #include "version.h"
 #include "i_rbopts.h"
+#include "i_osversion.h"
 
 #undef Class
 
@@ -2094,9 +2095,33 @@ void CreateMenu()
 	[NSApp setMainMenu:menuBar];
 }
 
+DarwinVersion GetDarwinVersion()
+{
+	DarwinVersion result = {};
+
+	int mib[2] = { CTL_KERN, KERN_OSRELEASE };
+	size_t size = 0;
+
+	if (0 == sysctl(mib, 2, NULL, &size, NULL, 0))
+	{
+		char* version = static_cast<char*>(alloca(size));
+
+		if (0 == sysctl(mib, 2, version, &size, NULL, 0))
+		{
+			sscanf(version, "%hu.%hu.%hu",
+				&result.major, &result.minor, &result.bugfix);
+		}
+	}
+
+	return result;
+}
+
 } // unnamed namespace
 
 
+const DarwinVersion darwinVersion = GetDarwinVersion();
+
+
 #ifdef main
 #undef main
 #endif // main

src/cocoa/i_osversion.h

@@ -0,0 +1,43 @@
+/*
+ ** i_osversion.h
+ **
+ **---------------------------------------------------------------------------
+ ** Copyright 2012-2014 Alexey Lysiuk
+ ** All rights reserved.
+ **
+ ** Redistribution and use in source and binary forms, with or without
+ ** modification, are permitted provided that the following conditions
+ ** are met:
+ **
+ ** 1. Redistributions of source code must retain the above copyright
+ **    notice, this list of conditions and the following disclaimer.
+ ** 2. Redistributions in binary form must reproduce the above copyright
+ **    notice, this list of conditions and the following disclaimer in the
+ **    documentation and/or other materials provided with the distribution.
+ ** 3. The name of the author may not be used to endorse or promote products
+ **    derived from this software without specific prior written permission.
+ **
+ ** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ ** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ ** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ ** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ ** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ ** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **---------------------------------------------------------------------------
+ **
+ */
+
+#include <stdint.h>
+
+struct DarwinVersion
+{
+	uint16_t major;
+	uint16_t minor;
+	uint16_t bugfix;
+};
+
+extern const DarwinVersion darwinVersion;