[Mesa-dev] Meson mesademos (Was: [RFC libdrm 0/2] Replace the build system with meson)

[Dylan Baker]

Quoting Jose Fonseca (2017-03-28 09:19:48)
> On 28/03/17 00:12, Dylan Baker wrote:
> >
> > Okay, I have libepoxy working for windows. I also got libepoxy working as a
> > subproject, but it took a bit of hacking on their build system (there's
> > some things they're doing that make them non-subproject safe, I'll send patches
> > and work that out with them.
> >
> > https://github.com/dcbaker/libepoxy.git fix-suproject
> 
> Thanks.
> 
> GLEW is not the only one case though.  There's also FREEGLUT.  So we 
> can't really avoid the problem of external windows binaries/subprojects.
> 
> So I've been thinking, and I suspect is better if first get things 
> working with binary GLEW / FREGLUT projects, then try the glew -> 
> libepoxy in a 2nd step, so there's less to take in to merge meson into 
> master.

Is freeglut a hard requirement? At least in autoconf we have logic to look for
both, and use #defines to enable freeglut only features.

> 
> > Clone that repo into $mesa-demos-root/subprojects and things should just work,
> > or mostly work. I got epoxy compiling, but ran into some issues in the mingw glu
> > header.
> >
> > Dylan
> 
> I'm pretty sure the problem with MinGW glu is the lack of windows.h.  We 
> need to do the same as CMakeLists.txt snippet quoted below.
> 
> I'm running out of time today, but I'll look into porting this over to 
> meson tomorrow if you don't beat me to it.
> 
> Jose
> 
> 
> 
> if (WIN32)
>          # Nobody likes to include windows.h:
>          # - Microsoft's GL/gl.h header depends on windows.h but doesn't 
> include it;
>          # - GLEW temporarily defines the necessary defines but 
> undefines them later
>          # - certain GLUT distributions don't include it;
>          # - most of our programs are meant to be portable so don't 
> include it.
>          #
>          # We could try to replicate the windows.h definitions required by
>          # GL/gl.h, but the build time savings don't compensate the constant
>          # headaches that brings, so instead we force windows.h to be 
> included
>          # on every file.
>          if (MSVC)
>                  add_definitions (-FIwindows.h)
>          else (MSVC)
>                  add_definitions (--include windows.h)
>          endif (MSVC)
> 
>          # Don't define min/max macros
>          add_definitions (-DNOMINMAX)
> 
>          # MSVC & MinGW only define & use APIENTRY
>          add_definitions (-DGLAPIENTRY=__stdcall)
> 
>          link_libraries (winmm)
> endif (WIN32)
> 

I assumed it was probably something like that. I'll have a look.

Dylan
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 488 bytes
Desc: signature
URL: <https://lists.freedesktop.org/archives/mesa-dev/attachments/20170328/f4aa8bfd/attachment.sig>