From mboxrd@z Thu Jan  1 00:00:00 1970
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From: "Jan D." <jan.h.d@swipnet.se>
Newsgroups: gmane.emacs.devel
Subject: Re: emacs & MAXPATHLEN
Date: Sat, 30 Jul 2005 13:27:23 +0200
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>
>> +#else
>> +      {
>> +        int buf_size = 2;
>> +        buf = xmalloc (buf_size);
>> +        for(;;)
>> +          {
>> +            if(getcwd (buf, buf_size) == 0)
>> +              {
>> +                if(errno == ERANGE)
>> +                  {
>> +                    buf_size *= 2;
>> +                    buf = xrealloc (buf, buf_size);
>> +                  }
>> +                else
>> +                  fatal ("`getcwd' failed: %s\n", strerror (errno));
>> +              }
>> +            else
>> +              break;
>> +          }
>> +
>> +      }
>> +#endif
>>

You can initialize buf_size to something bigger than 2.  This almost  
guarantees multiple calls to realloc.  Try 1024 or something more  
reasonable that will at least hold most paths.  2 will only hold "/"  
and nothing else.

Also, space after if and for.

     Jan D.