code:

---

1. download an unpack the archive

2. modify sys/unix/Makefile.src (or src/Makefile after running 
sys/unix/setup.sh):
223c223,224
< WINTTYLIB = -ltermlib
---
>  # WINTTYLIB = -ltermlib
>  WINTTYLIB = -framework System

3. modify include/unixconf.h:
48a49
>  #define DARWIN
50c51
< #define TERMINFO      /* uses terminfo rather than termcap */
---
>  /* #define TERMINFO */        /* uses terminfo rather than termcap */
300c301
< #if defined(BSD) || defined(ULTRIX) || defined(CYGWIN32) || defined(RANDOM)
---
>  #if defined(BSD) || defined(ULTRIX) || defined(CYGWIN32) || 
>defined(RANDOM) || defined(DARWIN)

4. modify include/system.h:
80c80
< # if !defined(SUNOS4) || defined(RANDOM)
---
>  # if !defined(SUNOS4) || defined(RANDOM) || defined(DARWIN)

5. modify src/hacklib.c:
446c446
< # if defined(BSD) || defined(ULTRIX) || defined(CYGWIN32) /* system 
srandom() */
---
>  # if defined(BSD) || defined(ULTRIX) || defined(CYGWIN32) || 
>defined(DARWIN) /* system srandom() */
448c448
< #   if defined(SUNOS4)
---
>  #   if defined(SUNOS4) || defined(DARWIN)

6. That's all... make and install as usual.

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