--- mpmf20.cpp.orig	Wed Sep 22 22:55:50 1999
+++ mpmf20.cpp	Wed Sep 22 22:47:45 1999
@@ -23,6 +23,17 @@
 	#define		DELETEARRAY				delete[]
 	#define		STRICMP					stricmp
 
+#elif defined(__FreeBSD__)
+	// FreeBSD g++
+	#include	<fcntl.h>
+	#include	<unistd.h>
+	#include	<machine/cpufunc.h>
+	#define		OUTPORT(p,v)			outb( (p), (v) )
+	#define		INPORT(p)				inb( p )
+	#define		CLOCK_SECOND			CLOCKS_PER_SEC
+	#define		DELETEARRAY				delete[]
+	#define		STRICMP					strcasecmp
+
 #elif defined(__linux__)
 	// linux g++
 	#include	<unistd.h>
@@ -237,6 +248,15 @@
 	// init error
 	m_szError[ 0 ] = 0;
 	m_iIDError = CMPMF20_ERROR_NONE;
+
+	// if FreeBSD
+	#if defined(__FreeBSD__)
+		// request access to required ports
+		if (open("/dev/io", O_RDONLY) < 0) {
+			LogError( CMPMF20_ERROR_IOPRERM, "open(\"/dev/io\") failed, reason '%s'", SZERROR );
+			return FALSE;
+		}
+	#endif
 
 	// if linux
 	#if defined(__linux__)