Legacy ImageMagick Discussions Archive

Hi everyone,

I new to ImageMagick and was hoping to start working with it, but when I tried to link ImageMagick.h, a series of errors come up during building, all relating to ssize_t.
I am currently working with c++ in visual studio 2010, on windows 7. I am trying to work with the source code for ImageMagick-6.7.4-4. My code at the moment is just:

#include "magick\ImageMagick.h"

int main()
{
return 0;
}

The errors that come up during building are of the form:

error C201: syntax error indentifier 'ssize_t'
error C2086: 'const int size_t' : redefinition
IntelliSense: identifier "ssize_t" is undefined

and these repeat for various files such as delegate.h, deprecate.h, etc...

Does anyone have an idea what might be causing these errors, and possible fixes?

Thanks,

Try each of these.

For C programs which use MagickWand I use this:
#include <wand/magick_wand.h>

A C program using MagickCore would use:
#include <magick/MagickCore.h>

The button demo for Magick++ uses:
#include <Magick++.h>

Pete

Thanks for your response, I tried your suggestions. I am trying to write a c++ program, so for the includes I used something like:
extern "C" {
#include <magick/MagickCore.h>
}
but the same errors still pop up. I have taken a look at one of the file where the errors are and the line that was marked was:

extern MagickExport MagickStatusType
GetGeometry(const char *,ssize_t *,ssize_t *,size_t *,size_t *),

I have never worked with C source before so I can't tell if there is something wrong. I am not sure if the source files that I have are bugged or I am missing something when linking them. I suspect the latter though.

We build ImageMagick with Visual Studio 2010 on Windows 7 without complaint. However, if ssize_t is undefined you can always use this define:

• #if !defined(ssize_t)
  typedef long ssize_t;
  #endif

Thanks Magick, that resolved most of the errors. But a couple of errors still remain:

error C2485: '_restrict' : unrecognized extended attribute

and that error repeats for several lines in stdlib.h.

I was wondering, I got the source codes from ftp://ftp.fifi.org/pub/ImageMagick/windows/
and I downloaded ImageMagick-6.74-4.zip and extracted everything. Is that all I need to use ImageMagick or are there files that I should download along with it? Perhaps that is why I am getting so many complaints.

Edit: Thanks everyone for your help, ImageMagick is building just fine now. Thanks a lot.