Add inspekt3d to guile deps, and reorganize

I reorganized in order to debug a problem with the nix overlays. I think
having small, focused overlayes is more understandable than one overlay
that references itself via `rec`. Also the error traces are easier to
follow with smaller overlays.

1 files changed, 39 insertions, 0 deletions

diff --git a/Biz/Bild/Deps/guile-opengl.nix b/Biz/Bild/Deps/guile-opengl.nix
new file mode 100644
index 0000000..6b5df43
--- /dev/null
+++ b/Biz/Bild/Deps/guile-opengl.nix
@@ -0,0 +1,39 @@
+{ stdenv
+, fetchurl
+, pkgconfig
+, guile
+, libGL
+, libGLU
+, freeglut
+}:
+
+let
+  name = "guile-opengl-${version}";
+  version = "0.1.0";
+in stdenv.mkDerivation {
+  inherit name;
+
+  src = fetchurl {
+    url = "mirror://gnu/guile-opengl/${name}.tar.gz";
+    sha256 = "13qfx4xh8baryxqrv986l848ygd0piqwm6s2s90pxk9c0m9vklim";
+  };
+
+  patchPhase = ''
+    substituteInPlace glx/runtime.scm \
+      --replace '(dynamic-link "libGL")' '(dynamic-link "${libGL}/lib/libGL.so")'
+    substituteInPlace glu/runtime.scm \
+      --replace '(dynamic-link "libGLU")' '(dynamic-link "${libGLU}/lib/libGLU.so")'
+    substituteInPlace glut/runtime.scm \
+      --replace '(dynamic-link "libglut")' '(dynamic-link "${freeglut}/lib/libglut.so")'
+  '';
+
+  nativeBuildInputs = [ pkgconfig guile libGL libGLU freeglut ];
+
+  meta = with stdenv.lib; {
+    description = "Guile bindings for the OpenGL graphics API";
+    homepage = "https://www.gnu.org/software/guile-opengl/";
+    license = licenses.gpl3Plus;
+    maintainers = with maintainers; [ vyp ];
+    platforms = platforms.linux;
+  };
+}