From: tibor AT iname DOT com (Tibor Polgar)
Subject: B18 Make fix for rules containing drive:/path
5 Sep 1997 15:45:23 -0700
Approved: cygnus DOT gnu-win32 AT cygnus DOT com
Distribution: cygnus
Message-ID: <340CF907.C1DB9AA6.cygnus.gnu-win32@iname.com>
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Currently when make is compiled for cygwin it can't handle rules 
such as

c:/usr/src/obj/foo.o : c:/usr/src/foo.c

The following patch to the distribution b18 appears to work of all the
cases i need.  Note that i feel the __MS-DOS__ ifdefs in many read.c
and misc.c should be able to be folded into the ones i did for
WIN32 and __CYGWIN32__.

-- 
Tibor Polgar                                 Alteon Networks
tibor AT alteon DOT com                             6351 San Ignacio Ave.
(408)360-5522                                San Jose, CA  95119
----------------------------------cut---------------------------------
*** make.h.orig Tue Apr 15 10:21:23 1997
--- make.h  Mon Sep 01 01:01:23 1997
***************
*** 292,299 ****
  extern void sync_Path_environment(void);
  extern int kill(int pid, int sig);
  extern int safe_stat(char *file, struct stat *sb);
- extern char *end_of_token_w32();
  #endif
  
  extern void die ();
  extern void message ();
--- 292,301 ----
  extern void sync_Path_environment(void);
  extern int kill(int pid, int sig);
  extern int safe_stat(char *file, struct stat *sb);
  #endif
+ #if defined( WIN32 ) || defined (__CYGWIN32__)
+ extern char *end_of_token_w32();
+ #endif /* defined( WIN32 ) || defined (__CYGWIN32__) */
  
  extern void die ();
  extern void message ();
*** read.c.orig Tue Apr 15 09:33:55 1997
--- read.c  Mon Sep 01 01:54:35 1997
***************
*** 288,294 ****
    char *pattern = 0, *pattern_percent;
  
    int makefile_errno;
! #ifdef WIN32
    int check_again;
  #endif
  
--- 288,295 ----
    char *pattern = 0, *pattern_percent;
  
    int makefile_errno;
! /* CYGNUS LOCAL: or __CYGWIN32__ */
! #if defined( WIN32)  || defined (__CYGWIN32__)
    int check_again;
  #endif
  
***************
*** 769,778 ****
          else
        break;
        }
! /* CYGNUS LOCAL: or __CYGWIN32__ */
! #if defined (__MSDOS__) || defined (__CYGWIN32__)
      /* For MS-DOS, skip a "C:\...".  */
!     if (p != 0 && p[1] == '\\' && isalpha (p[-1]))
        p = 0;
  #endif
  #ifdef _AMIGA
--- 770,778 ----
          else
        break;
        }
! #if defined (__MSDOS__)
      /* For MS-DOS, skip a "C:\...".  */
!     if (p != 0 && (p[1] == '\\' || p[1] == '/') && isalpha (p[-1]))
        p = 0;
  #endif
  #ifdef _AMIGA
***************
*** 791,797 ****
      if (p && !(isspace(p[1]) || !p[1] || isspace(p[-1])))
        p = 0;
  #endif
! #ifdef WIN32
            do {
              check_again = 0;
              /* For WIN32, skip a "C:\..." or a "C:/..." */
--- 791,798 ----
      if (p && !(isspace(p[1]) || !p[1] || isspace(p[-1])))
        p = 0;
  #endif
! /* CYGNUS LOCAL: or __CYGWIN32__ */
! #if defined(WIN32) || defined (__CYGWIN32__)
            do {
              check_again = 0;
              /* For WIN32, skip a "C:\..." or a "C:/..." */
***************
*** 1627,1634 ****
        if (p && *p == ',')
    *p =' ';
  #endif
! /* CYGNUS LOCAL: or __CYGWIN32__ */
! #if defined (__MSDOS__) || defined (__CYGWIN32__)
        /* For MS-DOS, skip a "C:\...".  */
        if (stopchar == ':' && p != 0 && p[1] == '\\' && isalpha (p[-1]))
    p = 0;
--- 1628,1634 ----
        if (p && *p == ',')
    *p =' ';
  #endif
! #if defined (__MSDOS__)
        /* For MS-DOS, skip a "C:\...".  */
        if (stopchar == ':' && p != 0 && p[1] == '\\' && isalpha (p[-1]))
    p = 0;
***************
*** 1640,1648 ****
    p = find_char_unquote (p+1, stopchars, 1);
        }
  #endif
! #ifdef WIN32
        /* For WIN32, skip a "C:\..." or "C:/...". */
!       if (stopchar == ':' &&
            p != 0 &&
            (p[1] == '\\' || p[1] == '/') &&
            isalpha (p[-1])) {
--- 1640,1649 ----
    p = find_char_unquote (p+1, stopchars, 1);
        }
  #endif
! /* CYGNUS LOCAL: or __CYGWIN32__ */
! #if defined( WIN32 ) || defined (__CYGWIN32__)
        /* For WIN32, skip a "C:\..." or "C:/...". */
!      if (stopchar == ':' &&
            p != 0 &&
            (p[1] == '\\' || p[1] == '/') &&
            isalpha (p[-1])) {
***************
*** 1650,1656 ****
          if (*p == '\0' && p[-1] == ':')
            p--;
        }
! #endif
        if (p == 0)
    p = q + strlen (q);
  
--- 1651,1657 ----
          if (*p == '\0' && p[-1] == ':')
            p--;
        }
! #endif /* defined( WIN32 ) || defined (__CYGWIN32__) */
        if (p == 0)
    p = q + strlen (q);
  
***************
*** 1710,1716 ****
  #else
    name = savestring (q, p - q);
  #endif
- 
        /* Add it to the front of the chain.  */
        new1 = (struct nameseq *) xmalloc (size);
        new1->name = name;
--- 1711,1716 ----
*** misc.c.orig Tue Apr 15 09:33:53 1997
--- misc.c  Mon Sep 01 01:01:23 1997
***************
*** 397,403 ****
    return s;
  }
  
! #ifdef WIN32
  /*
   * Same as end_of_token, but take into account a stop character
   */
--- 397,403 ----
    return s;
  }
  
! #if defined( WIN32 ) || defined (__CYGWIN32__)
  /*
   * Same as end_of_token, but take into account a stop character
   */
***************
*** 426,432 ****
  
    return p;
  }
! #endif
  
  /* Return the address of the first nonwhitespace or null in the string S.  */
  
--- 426,432 ----
  
    return p;
  }
! #endif /* #if defined( WIN32 ) || defined (__CYGWIN32__) */
  
  /* Return the address of the first nonwhitespace or null in the string S.  */
-
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