Mailing-List: contact cygwin-help@sourceware.cygnus.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@sources.redhat.com Delivered-To: mailing list cygwin@sources.redhat.com Message-ID: <39903635.C4D09ADB@veritas.com> Date: Tue, 08 Aug 2000 09:32:53 -0700 From: Bob McGowan Organization: VERITAS Software X-Mailer: Mozilla 4.73 [en] (WinNT; U) X-Accept-Language: en MIME-Version: 1.0 To: Benjamin Riefenstahl CC: cygwin@sourceware.cygnus.com Subject: Re: System call References: <200008071421.KAA02793@envy.delorie.com> <20000807161543.G12330@cygnus.com> <398F32A3.12530BE4@veritas.com> <398FD5CC.38E3715C@ision.net> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Transfer-Encoding: 7bit Benny, Thanks for the additional info. I'm too much of a UNIX/Linux C programmer, I guess;-) Benjamin Riefenstahl wrote: > > Hi Bob, > > Bob McGowan wrote: > > /* `dir', `vdir' and `ls' directory listing programs for GNU. > > Copyright (C) 85, 88, 90, 91, 95, 1996 Free Software Foundation, Inc. > > [...] > > Perhaps this is the source of some of the confusion? > > Part of it probably. Another is the definition of the system() function > most likely. > > It's supposed to call the system shell for processing of it's argument. > Now for Cygwin this would be "/bin/sh -c", naturally. For VC++, > Borland, Metrowerks or any other straight Windows compiler the system > shell should be "%COMSPEC% /c". So for any newby coming from a Windows > background and trying Cygwin, it's kind of mysterious at first, why > system("dir") works in VC++, and not in Cygwin. > > Basically, the system() functions is highly specific to the compiler and > environment. This goes so far that some Macintosh compilers implement > it with a simple "return NULL;", with the reasoning that there *is* no > shell on MacOS to call. > > so long, benny > -- > ISION Internet AG > Benjamin Riefenstahl > mailto:benjamin.riefenstahl@ision.net > > Ruhrstrasse 61 > D-22761 Hamburg > http://www.ision.net > > -- > Want to unsubscribe from this list? > Send a message to cygwin-unsubscribe@sourceware.cygnus.com -- Bob McGowan Staff Software Quality Engineer VERITAS Software rmcgowan@veritas.com -- Want to unsubscribe from this list? Send a message to cygwin-unsubscribe@sourceware.cygnus.com