This is an extremely crude patch for gpart to make it compile under MacOS X.
I suppose his  version will not work as expected due to endianess issues. 
More testing is needed.

  --Maximillian Dornseif <md@hudora.de>


*** gpart-0.1h/src/gm_ntfs.h	Mon Jan 29 21:33:58 2001
--- gpart-0.1h-mac/src/gm_ntfs.h	Tue Oct 19 17:55:32 2004
***************
*** 40,45 ****
--- 39,57 ----
  typedef s64_t			ntfs_u64;
  #endif /* NTFS_INTEGRAL_TYPES */
  #endif /* defined(i386) || defined(__i386__) || defined(__alpha__) */
+ 
+ /* we would like some big endianess magic here, for now we play stupid */
+ #if defined(__powerpc__) || defined(__APPLE__)
+ /* unsigned integral types */
+ #ifndef NTFS_INTEGRAL_TYPES
+ #define NTFS_INTEGRAL_TYPES
+ typedef unsigned char           ntfs_u8;
+ typedef unsigned short          ntfs_u16;
+ typedef unsigned int            ntfs_u32;
+ typedef s64_t                   ntfs_u64;
+ #endif /* NTFS_INTEGRAL_TYPES */
+ #endif /* defined(__powerpc__) || defined(__APPLE__) */
+ 
  
  
  /* Macros reading unsigned integers from a byte pointer */
diff -rcbB gpart-0.1h/src/l64seek.h gpart-0.1h-mac/src/l64seek.h
*** gpart-0.1h/src/l64seek.h	Wed Dec 13 23:56:07 2000
--- gpart-0.1h-mac/src/l64seek.h	Mon Oct 18 22:54:32 2004
***************
*** 32,37 ****
--- 32,41 ----
  	typedef int64_t off64_t;
  #endif
  
+ #if defined(__APPLE__)
+ #       include <sys/types.h>
+         typedef int64_t off64_t;
+ #endif
          
  #if defined(__FreeBSD__)
  	typedef off_t off64_t;