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

[Ben Abbott]

> On Oct 5, 2015, at 8:13 PM, Ben Abbott <address@hidden> wrote:
> 
>> On Oct 5, 2015, at 8:01 PM, Alexander Hansen <address@hidden> wrote:
>> 
>>> 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.
> 
> I’ll try changing that.

I tried …

export CPPFLAGS="-I/sw/include/mesa $CPPFLAGS"
export LDFLAGS="-L/sw/lib/mesa -lOSMesa $LDFLAGS”

./configure …

but I still get a seg-fault when tying to print using osmesa.

Ben