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diff --git a/crawl-ref/source/libmac.h b/crawl-ref/source/libmac.h
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+/*
+ *  File:       libmac.h
+ *  Summary:    Mac specific routines used by Crawl.
+ *  Written by: Jesse Jones
+ *
+ *  Change History (most recent first): 
+ *
+ *    <2>     5/25/02     JDJ       Updated for Mach-O targets
+ *    <1>     3/23/99     JDJ       Created
+ */
+ 
+#ifndef LIBMAC_H
+#define LIBMAC_H
+
+#if macintosh
+
+#ifdef _BSD_SIZE_T_			// $$$ is there a better way to test for OS X?
+	#define OSX	1
+#else
+	#define OS9	1
+#endif
+
+#include <fcntl.h>
+#include <stdlib.h>
+#include <string.h>
+
+#if OSX
+	#include <unistd.h>
+#endif
+
+#define MAC_NUMBER_OF_LINES     30
+
+// constants
+const int _NORMALCURSOR = 1;
+const int _NOCURSOR = 0;
+
+
+// non-ANSI functions
+int stricmp(const char* lhs, const char* rhs);
+char* strlwr(char* str);
+void itoa(int n, char* buffer, int radix);
+
+#if !OSX
+	inline void srandom(unsigned int seed)
+	{
+	    srand(seed);
+	}
+
+	int open(const char* path, int openFlags, int permissions);
+	int open(const char* path, int openFlags, int permissions, int mysteryFlags);
+	int close(int desc);
+	int read(int desc, void *buffer, unsigned int bytes);
+	int write(int desc, const void *buffer, unsigned int bytes);
+	int unlink(const char* path);
+#endif
+
+
+// curses(?) functions
+void clrscr();
+void gotoxy(int x, int y);
+void textcolor(int c);
+void cprintf(const char* format,...);
+
+void window(int x, int y, int lx, int ly);
+int wherex();
+int wherey();
+void putch(char c);
+int kbhit();
+
+char getche();
+int getch();
+void getstr(char* buffer, int bufferSize);
+
+void textbackground(int c);
+void _setcursortype(int curstype);
+
+
+// misc functions
+void delay(int ms);
+
+void init_mac();
+void deinit_mac();
+
+
+#endif // macintosh
+#endif // LIBMAC_H