Re: magic.mgk not found [WAS: Re: Issues & questions building Octave-3.4.2 MinGW]

[Tatsuro MATSUOKA]

Hello

Thank you for your report.
I have been  still  using Graphics Magick 1.3.7.
I will try to build Graphics Magick 1.3.12 including Benjamin's Patch.

Regards

Tatsuro
 
--- On Mon, 2011/8/8, Philip Nienhuis  wrote:

> Hi Tatsuro,
> 
> Picking up again on MinGW.
> Reviving a post from July 9th...
> 
> Tatsuro MATSUOKA wrote:
> > Hello
> > 
> > --- On Sun, 2011/7/10, Philip Nienhuis  wrote:
> <snip>
> >> As to the tests, the three unexpected FAILs are in:
> >> - imread.m
> >> "imread: invalid image file: Magick++ exception: Magick: Unable to access 
> >> configuration file (magic.mgk) reported by magick/blob.c:1830 
> >> (GetConfigureBlob)"
> > 
> > Hmmm. I have never seen this error.
> 
> Could it be that you don't see this because you have your GraphicsMagick 
> development in place, so that GraphicsMagick knows where to find its config 
> file on your system?
> 
> I tried with your binary; unzipped it, started Octave, and entered
> 
>   test imread
> 
> to get the same error. Indeed, a search in the unzipped binary tree shows no 
> trace of magic.mgk.
> 
> 
> In the 3.2.4 MinGW binary it is in /share/GraphicsMagick/config/
> 
> Benjamin made some patches to GraphicsMagick to fix this issue for 
> Octave-3.2.0, see here:
> 
> http://octave.1599824.n4.nabble.com/imread-on-Octave-3-2-0-for-Windows-td1636683.html
>  
> 
> and here:
> 
> http://octave.svn.sourceforge.net/viewvc/octave/trunk/octave-forge/admin/Windows/mingw32/graphicsmagick/GraphicsMagick-1.3.12-5.patch?revision=8447&content-type=text%2Fplain
> 
> (line wrap!)  The relevant patch for blob.c starts around L. 47. I've seen 
> this code snippet elsewhere when googling for solutions.
> 
> The error can also be circumvented by adding a setenv statement in octaverc:
> setenv ("MAGICK_CONFIGURE_PATH", "/full/path/to/magic.mgk")
> 
> Philip
>