(Guile-SDL) Build system woes

[David Thompson]

Hello,

In trying to package guile-sdl for the GNU Guix distribution, I've
encountered problems with the build system.  In Guix, each package
occupies its own place in the "store", a directory in /gnu/store.  This
means that each SDL library installed to a different place, the libs and
headers aren't in /usr/lib and /usr/include.

Here's what some SDL directories look like on my system right now:

  /gnu/store/lkfv5wld3rw1n87jl5fspp5xn0ihd9cs-sdl-1.2.15
  /gnu/store/n664n4210g2hblvfbp2dks224wv32ln2-sdl-gfx-2.0.24
  /gnu/store/3daj0irsjgzb1kvxm22ixkxvg2xa17bb-sdl-image-1.2.12
  /gnu/store/7jsaq8islf9chs2r16yr9j8sjy4hch9i-sdl-ttf-2.0.11

Guix automatically sets environment variables such as LIBRARY_PATH,
CPATH, and PKG_CONFIG path to the right values.  The 'configure' script
successfully detects the libraries.  However, during 'make', things go
south.  Here is one such error:

  ../../build-aux/guile-baux/gbaux-do k2c -o init.c init.kf 
-I/gnu/store/lkfv5wld3rw1n87jl5fspp5xn0ihd9cs-sdl-1.2.15/include/SDL
  sdl.c:183:20: fatal error: k/init.c: No such file or directory
   #include "k/init.c"
                      ^
  compilation terminated.
  sdlvideo.c:24:23: fatal error: SDL_image.h: No such file or directory
   #include "SDL_image.h"
                         ^
  compilation terminated.
  sdlsurface.c:24:23: fatal error: SDL_image.h: No such file or directory
   #include "SDL_image.h"
                         ^
  compilation terminated.

I can see that the -I flag only has the path to the core SDL headers,
but not the extension libraries.  I tried passing the proper CFLAGS into
'make' but to no avail.

Is it possible for the build system to work with such a configuration
right now?  If not, would it be easy to patch?

Thanks!

-- 
David Thompson
Web Developer - Free Software Foundation - http://fsf.org
GPG Key: 0FF1D807
Support the FSF: https://fsf.org/donate