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On 9/20/11 9:29 PM, Daniel Johnson wrote:
>
> On Sep 20, 2011, at 6:23 PM, Alexander Hansen wrote:
>
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>>
>> On 9/19/11 9:10 PM, Alexander Hansen wrote:
>>> On 9/19/11 5:40 PM, Alan Rakes wrote:
>>>
>>>> I need to have the unstable tree enabled in order to install
>>>> some of the packages I need. However, I am having a problem
>>>> with crashes in Octave. My research on this implies it is
>>>> related to the version of graphicsmagick in the unstable
>>>> tree, but may not be a problem with the version in the stable
>>>> tree.
>>>
>>>> Is there a way I can reinstall Octave using just stable tree
>>>> version of graphicsmagick?
>>>
>>>
>>>> If anyone is interested, here is the crash report I am
>>>> getting which seems to be related to the combo of Octave
>>>> 3.2.4 and graphicsmagic 1.3.12-1. More importantly, I want
>>>> to try it with the latest version that is supposed to work
>>>> which is graphicsmagick 1.3.7-2.
>>>
>>>
>>>> Here is the crash report.
>>>
>>>> Alan-Rakess-Pro:~ alanrakes$ octave GNU Octave, version 3.2.4
>>>> Copyright (C) 2009 John W. Eaton and others. This is free
>>>> software; see the source code for copying conditions. There
>>>> is ABSOLUTELY NO WARRANTY; not even for MERCHANTABILITY or
>>>> FITNESS FOR A PARTICULAR PURPOSE. For details, type
>>>> `warranty'.
>>>
>>>> Octave was configured for "i386-apple-darwin".
>>>
>>>> Additional information about Octave is available at
>>>> http://www.octave.org.
>>>
>>>> Please contribute if you find this software useful. For more
>>>> information, visit http://www.octave.org/help-wanted.html
>>>
>>>> Report bugs to <[email protected]> (but first, please read
>>>> http://www.octave.org/bugs.html to learn how to write a
>>>> helpful report).
>>>
>>>> For information about changes from previous versions, type
>>>> `news'.
>>>
>>>> octave:1> cd desktop octave:2> img=imread('scorpion.jpg')
>>>> Assertion failed: (semaphore_info != (SemaphoreInfo *)
>>>> NULL), function LockSemaphoreInfo, file magick/semaphore.c,
>>>> line 525. panic: Abort trap -- stopping myself... Abort trap
>>>> Alan-Rakess-Pro:~ alanrakes$
>>>
>>>
>>>> Thanks.
>>>
>>>
>>> In general, you can use "fink dumpinfo -fallversons
>>> <packagename>" to access all of the known versions of
>>> <packagename>
>>>
>>> $ fink dumpinfo -fallversions graphicsmagick Information about
>>> 10617 packages read in 1 seconds. allversions: 1.3.7-2 bi
>>> 1.3.12-1
>>>
>>> To roll graphicsmagick back, you can use "fink install
>>> graphicsmagick-1.3.7-2"
>>>
>>> My recollection is that I saw a similar error in the drawtiming
>>> package with graphicsmagick 1.3.12 but not 1.3.7-2, so I may
>>> need to apply a similar patch to octave-3.2.4 .
>>
>> (cc'ing the graphicsmagick maintainer)
>>
>> Interestingly enough, when I googled around about this issue, it
>> looks like other folks (cygwin, at least) have decided to patch
>> graphicsmagick-1.3.12 rather than octave-3.2.4:
>>
>> http://savannah.gnu.org/bugs/?29474
>>
>> A report from Macports:
>> http://octave.1599824.n4.nabble.com/Cannot-read-an-image-with-imread-on-Mac-td3339046.html
>>
>>
>>
>>
>>
I'm trying to figure out how to patch Octave-3.2.4 instead, but it
>> hasn't quite worked yet.
>
> According to GraphicsMagick upstream, this is a bug in the client
> code:
> http://sourceforge.net/tracker/?func=detail&aid=3104518&group_id=73485&atid=537937
>
>
>
>
Clients are supposed to call InitializeMagick() before using any
> GM calls. In the past it would work anyway so people got lazy and
> left it out, but now it's strictly enforced because it's used to
> ensure multithreaded safety. I'd suspect that patching GM to not
> need to do this would be impractical and likely dangerous.
>
> Daniel
>
>
>
Kicking this over to devel because I need some programming help here.
InitializeMagick apparently has to be called as
InitializeMagick(const *char)
, at least by clang. Unfortunately, I'm not sure what to use as an
argument.
I tried the following, knowing that args(0).string_value is a filename
in all cases:
DEFUN_DLD (__magick_finfo__, args, ,
"-*- texinfo -*-\n\
@deftypefn {Loadable File} {} __magick_finfo__(@var{fname})\n\
Read image information with GraphicsMagick++. In general you should\n\
not be using this function. Instead you should use @code{imfinfo}.\n\
@seealso{imfinfo, imread}\n\
@end deftypefn")
{
octave_value_list output;
#ifdef HAVE_MAGICK
//My stuff to initialize GraphicsMagick
const char* fn = args (0).string_value ();
InitializeMagick(fn);
...
But unfortunately that doesn't suffice.
./DLD-FUNCTIONS/__magick_read__.cc:361:15: error: no viable conversion
from
'std::string' (aka 'basic_string<char>') to 'const char *'
const char* fn = args (0).string_value ();
^ ~~~~~~~~~~~~~~~~~~~~~~~~
- ---
Alexander Hansen, Ph.D.
Fink User Liaison
http://finkakh.wordpress.com/
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