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

[Tatsuro MATSUOKA]

Hello

I have updated GraphicsMagick (version 1.3.7-> 1.3.12). 
I have applied Benjamin's blob.c patch and place configuration files in 
 share/GraphicsMagick-1.3.12/config  
Hope the above fixes the bug.
(In GraphicsMagick-1.3.12, magic.mgk is not used.)

http://www.tatsuromatsuoka.com/octave/Eng/Win/

Regards

Tatsuro

--- On Mon, 2011/8/8, Tatsuro MATSUOKA wrote:

> 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
> >
>