Re: Octave 4.0 on Mac OS Yosemite (with gui!)

[Alexander Hansen]

> On Oct 5, 2015, at 16:51, Ben Abbott <address@hidden> wrote:
> 
>> On Oct 5, 2015, at 7:46 PM, Alexander Hansen <address@hidden> wrote:
>> 
>>> On Oct 5, 2015, at 16:43, Ben Abbott <address@hidden> wrote:
>>> 
>>>> On Oct 5, 2015, at 7:32 PM, Ben Abbott <address@hidden> wrote:
>>>> 
>>>>> On Oct 5, 2015, at 5:31 PM, Marius Schamschula <address@hidden> wrote:
>>>>> 
>>>>> On Oct 5, 2015, at 3:05 PM, Dr. Sebastian Schöps <address@hidden> wrote:
>>>>> 
>>>>>>> The Qt libs for Mac OSX use native graphics, while osmesa support is 
>>>>>>> part of X11. Perhaps this is a problem? Does homebrew have an OSMesa 
>>>>>>> formula? I’ve just installed Fink’s package for osmesa and had to 
>>>>>>> tinker a bit for configure to work.
>>>>>>> 
>>>>>>> Initially, I got ...
>>>>>> 
>>>>>> Hi Ben, 
>>>>>> 
>>>>>> the problem seems to be the order of includes in __osmesa_print__. I did 
>>>>>> not yet fully understand why. However, I have created a small patch that 
>>>>>> fixes the problem for me
>>>>>> 
>>>>>> https://gist.githubusercontent.com/schoeps/3bc5ae93f7580ef88d7a/raw/osmesa.patch
>>>>>> 
>>>>>> Can you try it, please? (OS X 10.11, Xquartz 2.7.8_rc1)
>>>>>> 
>>>>>> Sebastian
>>>>> 
>>>>> Sebastian,
>>>>> 
>>>>> I applied the patch under Yosemite, it built w/o any issues, this time no 
>>>>> "--without-OSMesa” needed!
>>>>> 
>>>>> Marius
>>>>> --
>>>>> Marius Schamschula
>>>> 
>>>> Hi Sabastian,
>>>> 
>>>> Your patch allowed me to complete a build with osmesa enabled. However, 
>>>> when I tried to print for “visible” = “off” I encountered a seg-fault.
>>>> 
>>>> panic: Segmentation fault: 11 -- stopping myself
>>>> 
>>>> Were you and/or Marius able to print via osmesa.
>>>> 
>>>> Ben
>>> 
>>> Opps, I configured with the following options, and used Macports osmesa 
>>> port.
>>> 
>>>             --without-x \
>>>             --with-OSMesa \
>>>             --with-OSMesa-includedir=/sw/include/mesa \
>>>             --with-OSMesa-libdir=/sw/lib/mesa
>>> 
>>> $ fink list mesa
>>> Information about 10253 packages read in 14 seconds.
>>>  i   mesa                                 7.0.2-3                     3-D 
>>> graphics library
>>>      mesa-libglw-openmotif4               7.8.2-1                     Xt / 
>>> Motif OpenGL widgets
>>>      mesa-libglw-openmotif4-shlibs        7.8.2-1                     Xt / 
>>> Motif OpenGL widgets
>>>  i   mesa-shlibs                          7.0.2-3                     3-D 
>>> graphics library
>>>  i   system-pkgconfig-osmesa              8-1                         
>>> [virtual pkgconfig package representing osmesa]
>>> 
>>> Ben
>>> 
>> 
>> That’d be Fink’s osmesa. :-)
>> 
>> If I get a chance I’ll see about some modernization there to try to get a 
>> reasonable Octave 4.x into Fink.
>> 
>> -- 
>> Alexander Hansen, Ph.D.
>> Fink User Liaison
> 
> Hi Alex,
> 
> Opps. You are correct, I mis-typed. I’m using Fink, not macports … groan!
> 
> Does Fink’s mesa work with the OpenGL Carbon framework?
> 
> And what is the relationship between "system-pkgconfig-osmesa 8-1” and the 
> mesa 7.0.2-3 package?
> 
> Ben
> 
> 
> 

I don’t know much about it, but the last note from a maintainer said:  

Care needs to be taken to avoid system OpenGL,
 if you want to use Mesa3d, while compiling, like
 making sure that it's first in the linker's search
 path. Otherwise, you get runtime errors.

So my thought is that it isn’t compatible with OpenGL.framework

system-pkgconfig-osmesa isn’t related to the mesa package at all—it’s an 
indicator for the version of /opt/X11/lib/pkgconfig/osmesa.pc. 

—Alex