ObjFW  Check-in [1590be4bbc]

		 * iOS does not provide environ and Apple does not allow using
		 * _NSGetEnviron on iOS. Therefore, we just get a few common
		 * variables from the environment which applications might
		 * expect.
		 */
		if ((env = getenv("HOME")) != NULL)
			[environment
			    setObject: [OFString stringWithCString: env]
			    setObject: [OFString stringWithUTF8String: env]
			       forKey: @"HOME"];
		if ((env = getenv("PATH")) != NULL)
			[environment
			    setObject: [OFString stringWithCString: env]
			    setObject: [OFString stringWithUTF8String: env]
			       forKey: @"PATH"];
		if ((env = getenv("SHELL")) != NULL)
			[environment
			    setObject: [OFString stringWithCString: env]
			    setObject: [OFString stringWithUTF8String: env]
			       forKey: @"SHELL"];
		if ((env = getenv("TMPDIR")) != NULL)
			[environment
			    setObject: [OFString stringWithCString: env]
			    setObject: [OFString stringWithUTF8String: env]
			       forKey: @"TMPDIR"];
		if ((env = getenv("USER")) != NULL)
			[environment
			    setObject: [OFString stringWithCString: env]
			    setObject: [OFString stringWithUTF8String: env]
			       forKey: @"USER"];
#endif
		[pool release];

		[environment makeImmutable];
	} @catch (id e) {
		[self release];