diff --git a/src/os/macosx/macos.m b/src/os/macosx/macos.m
deleted file mode 100644
--- a/src/os/macosx/macos.m
+++ /dev/null
@@ -1,160 +0,0 @@
-/* $Id$ */
-
-#include <AppKit/AppKit.h>
-
-#include <mach/mach.h>
-#include <mach/mach_host.h>
-#include <mach/host_info.h>
-#include <mach/machine.h>
-#include <stdio.h>
-#include "../../stdafx.h"
-#include "../../macros.h"
-
-#ifndef CPU_SUBTYPE_POWERPC_970
-#define CPU_SUBTYPE_POWERPC_970 ((cpu_subtype_t) 100)
-#endif
-
-/*
- * This file contains objective C
- * Apple uses objective C instead of plain C to interact with OS specific/native functions
- *
- * Note: TrueLight's crosscompiler can handle this, but it likely needs a manual modification for each change in this file.
- * To insure that the crosscompiler still works, let him try any changes before they are committed
- */
-
-void ToggleFullScreen(bool fs);
-
-static char *GetOSString(void)
-{
-	static char buffer[175];
-	const char* CPU;
-	char OS[20];
-	char newgrf[125];
-	long sysVersion;
-	extern const char _openttd_revision[];
-
-	// get the hardware info
-	host_basic_info_data_t hostInfo;
-	mach_msg_type_number_t infoCount;
-
-	infoCount = HOST_BASIC_INFO_COUNT;
-	host_info(
-		mach_host_self(), HOST_BASIC_INFO, (host_info_t)&hostInfo, &infoCount
-	);
-
-	// replace the hardware info with strings, that tells a bit more than just an int
-	switch (hostInfo.cpu_subtype) {
-#ifdef __POWERPC__
-		case CPU_SUBTYPE_POWERPC_750:  CPU = "G3"; break;
-		case CPU_SUBTYPE_POWERPC_7400:
-		case CPU_SUBTYPE_POWERPC_7450: CPU = "G4"; break;
-		case CPU_SUBTYPE_POWERPC_970:  CPU = "G5"; break;
-		default:                       CPU = "Unknown PPC"; break;
-#else
-		/* it looks odd to have a switch for two cases, but it leaves room for easy
-		 * expansion. Odds are that Apple will some day use newer CPUs than i686
-		 */
-		case CPU_SUBTYPE_PENTPRO: CPU = "i686"; break;
-		default:                  CPU = "Unknown Intel"; break;
-#endif
-	}
-
-	// get the version of OSX
-	if (Gestalt(gestaltSystemVersion, &sysVersion) != noErr) {
-		sprintf(OS, "Undetected");
-	} else {
-		int majorHiNib = GB(sysVersion, 12, 4);
-		int majorLoNib = GB(sysVersion,  8, 4);
-		int minorNib   = GB(sysVersion,  4, 4);
-		int bugNib     = GB(sysVersion,  0, 4);
-
-		sprintf(OS, "%d%d.%d.%d", majorHiNib, majorLoNib, minorNib, bugNib);
-	}
-
-	// make a list of used newgrf files
-/*	if (_first_grffile != NULL) {
-		char* n = newgrf;
-		const GRFFile* file;
-
-		for (file = _first_grffile; file != NULL; file = file->next) {
-			n = strecpy(n, " ", lastof(newgrf));
-			n = strecpy(n, file->filename, lastof(newgrf));
-		}
-	} else {*/
-		sprintf(newgrf, "none");
-//	}
-
-	snprintf(
-		buffer, lengthof(buffer),
-		"Please add this info: (tip: copy-paste works)\n"
-		"CPU: %s, OSX: %s, OpenTTD version: %s\n"
-		"NewGRF files:%s",
-		CPU, OS, _openttd_revision, newgrf
-	);
-	return buffer;
-}
-
-
-#ifdef WITH_SDL
-
-void ShowMacDialog(const char* title, const char* message, const char* buttonLabel)
-{
-	NSRunAlertPanel([NSString stringWithCString: title], [NSString stringWithCString: message], [NSString stringWithCString: buttonLabel], nil, nil);
-}
-
-#elif defined WITH_COCOA
-
-void CocoaDialog(const char* title, const char* message, const char* buttonLabel);
-
-void ShowMacDialog(const char* title, const char* message, const char* buttonLabel)
-{
-	CocoaDialog(title, message, buttonLabel);
-}
-
-
-#else
-
-void ShowMacDialog(const char* title, const char* message, const char* buttonLabel)
-{
-	fprintf(stderr, "%s: %s\n", title, message);
-}
-
-#endif
-
-void ShowMacAssertDialog(const char* function, const char* file, const int line, const char* expression)
-{
-	const char* buffer =
-		[[NSString stringWithFormat:@
-			"An assertion has failed and OpenTTD must quit.\n"
-			"%s in %s (line %d)\n"
-			"\"%s\"\n"
-			"\n"
-			"You should report this error the OpenTTD developers if you think you found a bug.\n"
-			"\n"
-			"%s",
-			function, file, line, expression, GetOSString()] cString
-		];
-	NSLog(@"%s", buffer);
-	ToggleFullScreen(0);
-	ShowMacDialog("Assertion Failed", buffer, "Quit");
-
-	// abort so that a debugger has a chance to notice
-	abort();
-}
-
-
-void ShowMacErrorDialog(const char *error)
-{
-	const char* buffer =
-		[[NSString stringWithFormat:@
-			"Please update to the newest version of OpenTTD\n"
-			"If the problem presists, please report this to\n"
-			"http://bugs.openttd.org\n"
-			"\n"
-			"%s",
-			GetOSString()] cString
-		];
-	ToggleFullScreen(0);
-	ShowMacDialog(error, buffer, "Quit");
-	abort();
-}