1 files changed, 64 insertions, 0 deletions
diff --git a/indra/llcommon/llsys_objc.mm b/indra/llcommon/llsys_objc.mm
new file mode 100644
index 0000000000..cdb1e320d5
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+++ b/indra/llcommon/llsys_objc.mm
@@ -0,0 +1,64 @@
+/**
+ * @file llsys_objc.mm
+ * @brief obj-c implementation of the system information functions
+ *
+ * $LicenseInfo:firstyear=2022&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2022, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+#import "llsys_objc.h"
+#import <AppKit/AppKit.h>
+
+static int intAtStringIndex(NSArray *array, int index)
+{
+    return [(NSString *)[array objectAtIndex:index] integerValue];
+}
+
+bool LLGetDarwinOSInfo(int &major, int &minor, int &patch)
+{
+    if (NSAppKitVersionNumber > NSAppKitVersionNumber10_8)
+    {
+        NSOperatingSystemVersion osVersion = [[NSProcessInfo processInfo] operatingSystemVersion];
+        major = osVersion.majorVersion;
+        minor = osVersion.minorVersion;
+        patch = osVersion.patchVersion;
+    }
+    else
+    {
+        NSString* versionString = [[NSDictionary dictionaryWithContentsOfFile:
+                                    @"/System/Library/CoreServices/SystemVersion.plist"] objectForKey:@"ProductVersion"];
+        NSArray* versions = [versionString componentsSeparatedByString:@"."];
+        NSUInteger count = [versions count];
+        if (count > 0)
+        {
+            major = intAtStringIndex(versions, 0);
+            if (count > 1)
+            {
+                minor = intAtStringIndex(versions, 1);
+                if (count > 2)
+                {
+                    patch = intAtStringIndex(versions, 2);
+                }
+            }
+        }
+    }
+    return true;
+}