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List:       imagemagick-developer
Subject:    RE: compilation failure under Visual C++ on NT
From:       Bill Radcliffe <BillR () corbis ! com>
Date:       2000-08-30 5:39:57
[Download RAW message or body]

First take a good long look at the VisualC++ section of the README.txt files
and see if that helps explain how to integrate ImageMagick with your own
code.

> -----Original Message-----
> From:	Hellenga Gary [SMTP:hellenga_gary@bah.com]
> Sent:	Monday, August 28, 2000 10:02 AM
> To:	magick-developer@imagemagick.org
> Subject:	compilation failure under Visual C++ on NT
> 
> I'm pretty new to the Windows and Visual C++ environment.  I am trying
> to port a UNIX-developed application to NT.  One of my source files
> #includes magick/magick.h.  The Visual C++ compiler choked on #including
> unistd.h, in the code segment
> 
> #if defined(_VISUALC_)
> #   include <direct.h>
> #   define HAVE_STRERROR
> #else
> #   include <unistd.h>
> #endif
> 
> 
> The symbol _VISUALC_ is not pre-defined in my Visual C++ environment,
> and I cannot even find a reference to it in the Visual C++ help.  Thus,
> the "if" clause is skipped, and unistd.h is sought.  The only unistd.h
> file I can find, however, is in the /fpx/macdeps subdirectory, and it is
> an EMPTY file!
> 
> Should I be defining the _VISUALC_ symbol before compiling?  From the
> name, it seems obvious that it should, but I noted that it was not
> defined when I built all the utilities (display, identify, mogrify,
> convert, etc.) that are included in the IM download, and no error
> occurred.
> 
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