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Date: Thu, 7 Aug 2003 22:49:42 -0400
From: Christopher Faylor <cgf-idd AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Problems with fork()
Message-ID: <20030808024942.GA27523@redhat.com>
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References: <3F32F92D DOT 3010803 AT bellsouth DOT net> <Pine DOT GSO DOT 4 DOT 44 DOT 0308072209400 DOT 5132-100000 AT slinky DOT cs DOT nyu DOT edu>
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On Thu, Aug 07, 2003 at 10:10:07PM -0400, Igor Pechtchanski wrote:
>On Thu, 7 Aug 2003, wanderso wrote:
>>Hate to ask a stupid question, but I cannot get fork() to work in a c++
>>program.  I keep getting a link error saying - "undefined reference to
>>fork()".  Same problem goes for other low-level C calls like 'unlink',
>>'open', etc...
>>
>>The test stub I'm using is this:

>>
>>         #include <stdio.h>
>>         #include <stdlib.h>
>>
>>         int fork();
>>
>>         main( int argc, char **argv )
>>         {
>>                 int i = fork();
>>         }
>>
>>NOTE: the same code works fine as a straight C program, it fails when I
>>try and compile it as a .cpp file.
>>
>>I checked other posts and didn't see anything close; any help would be
>>most appreciated.
>>
>>Ross Anderson.
>
>Use 'extern "C"'.

Or include the proper header "unistd.h".

cgf

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