[Mesa-dev] demos / glew configure bug

[Brian Paul]

On 07/15/2010 03:22 AM, Dave Airlie wrote:
> On Thu, Jul 15, 2010 at 6:48 PM, Dan Nicholson<dbn.lists at gmail.com>  wrote:
>> On Tue, Jul 13, 2010 at 7:42 AM, Brian Paul<brianp at vmware.com>  wrote:
>>> On 07/13/2010 08:07 AM, Brian Paul wrote:
>>>>
>>>> I'm setting up the Mesa demos repo on a new system. autogen.sh fails
>>>> because it can't find GLEW. I think autogen is looking for GLEW in
>>>> /usr/include/GL/ and /usr/lib/libGLEW.a instead of using the copy of
>>>> GLEW in the demos tree itself.
>>>>
>>>> Dan, can you fix that?
>>>>
>>>>
>>>> $ ./autogen.sh
>>>> [...]
>>>> checking pkg-config is at least version 0.9.0... yes
>>>> checking for GL... yes
>>>> checking GL/glut.h usability... no
>>>> checking GL/glut.h presence... no
>>>> checking for GL/glut.h... no
>>>> checking for glutInit in -lglut... no
>>>> checking for GLEW... no
>>>> checking GL/glew.h usability... no
>>>> checking GL/glew.h presence... no
>>>> checking for GL/glew.h... no
>>>> configure: error: GLEW required
>>>
>>> Digging deeper...  The issue is actually in the configure script (I think).
>>>   Even after copying libGLEW.a from Mesa 7.8.2 into /usr/lib/libGLEW.a (which
>>> is the same as /usr/lib64/) configure is failing:
>>>
>>> [...]
>>> checking pkg-config is at least version 0.9.0... yes
>>> checking for GL... yes
>>> checking GL/glut.h usability... no
>>> checking GL/glut.h presence... no
>>> checking for GL/glut.h... no
>>> checking for glutInit in -lglut... no
>>> checking for GLEW... no
>>> checking GL/glew.h usability... yes
>>> checking GL/glew.h presence... yes
>>> checking for GL/glew.h... yes
>>> checking for glewInit in -lGLEW... no
>>> configure: error: GLEW required
>>>
>>> I wrote a test program that just calls glewInit() and compiled it with 'gcc
>>> foo.c -lGLEW -lGL -o foo' and it worked fine.
>>
>> I'm traveling right now, but I believe the problem is that mesa does
>> not install a glew.pc pkgconfig file. You can create one from the
>> glu.pc example (or one of the others) and install it in
>> /usr/lib/pkgconfig (for x86) or /usr/lib64/pkgconfig (for x86-64).
>>
>> The check for glew in the demos configure script would be something like:
>>
>> PKG_CHECK_MODULES([GLEW], [glew])
>>
>> This would search for glew.pc and then the flags would be stored in
>> GLEW_CFLAGS and GLEW_LIBS.
>>
>> I don't have a chance to fix this for another week or so, but it needs
>> a little fixing on the mesa side for glew to be a fully installed
>> library like gl or glu.
>
> Well we don't generally install glew from Mesa, we use glew from
> upstream in Fedora for example, it now install a pc file, since 1.5.4
> I think.

Just FYI: I just installed the latest Fedora 13 this week and glew is 
at version 1.5.2.  There was no .pc file in the RPM.

-Brian