Re: Not finding modules that opam appears to have installed.

On 13.04.2016 02:14, Hendrik Boom [email protected] [ocaml_beginners] wrote:
>  
>
> I uninstalled and then installed glMlite using opam, just to be sure I
> knew what was there. I subsequently trid once again to ocmpile my
> trivial game.
>
> hendrik@notlookedfor:~/dv/ocaml/wander$ make wander
> ocamlfind ocamlopt -package glMLite -package unix -linkpkg
> loader-libpng.c png_loader.ml wander.ml -o wander
> File "wander.ml", line 1:
> Error: No implementations provided for the following modules:
> Glut referenced from wander.cmx
> Makefile:6: recipe for target 'wander' failed
> make: *** [wander] Error 2
> hendrik@notlookedfor: ~/dv/ocaml/wander$
>
> Evidently it is not finding Glut.
>
> What could it be looking for by the nae of Glut that it doesn't find
> it in the glMlite that opam installed? To my eyes, it's right there
> where opam installed it:
>
> hendrik@notlookedfor:~/dv/ocaml/wander$ ls /home/hendrik/.opam/4.02.3/lib/glMLite/
> dllFunGL.so FunGlut.cmx Glut.cma libVBO.a
> dllgl_stubs.so FunGlut.cmxa Glut.cmi libvertArray.a
> dllGlu.so FunGlut.o Glut.cmx META
> dllGlut.so GL.a Glut.cmxa opam.config
> dlljpeg_loader.so GL.cma Glut.o VBO.a
> dllVBO.so GL.cmi jpeg_loader.a VBO.cma
> dllvertArray.so GL.cmx jpeg_loader.cma VBO.cmi
> FunGL.a GL.cmxa jpeg_loader.cmi VBO.cmx
> FunGL.cma GL.o jpeg_loader.cmx VBO.cmxa
> FunGL.cmi Glu.a jpeg_loader.cmxa VBO.o
> FunGL.cmx Glu.cma jpeg_loader.o vertArray.a
> FunGL.cmxa Glu.cmi libFunGL.a vertArray.cma
> FunGL.o Glu.cmx libgl_stubs.a vertArray.cmi
> FunGlut.a Glu.cmxa libGlu.a vertArray.cmx
> FunGlut.cma Glu.o libGlut.a vertArray.cmxa
> FunGlut.cmi Glut.a libjpeg_loader.a vertArray.o
> hendrik@notlookedfor:~/dv/ocaml/wander$
>
Do you have then necessary OS glut components installed? Here is what is offered on
my system:

  | freeglut             | Freely licensed alternative to the GLUT
library                           | Quellpaket
  | freeglut-demo        | Demonstration applications for the freeglut
library                       | Paket    
i | freeglut-devel       | Development libraries, includes and man pages for freeglut
(GLUT Library) | Paket    
  | freeglut-devel-32bit | Development libraries, includes and man pages for freeglut
(GLUT Library) | Paket    
  | ghc-GLUT             | A binding for the OpenGL Utility
Toolkit                                  | Paket    
  | ghc-GLUT             | A binding for the OpenGL Utility
Toolkit                                  | Quellpaket
  | ghc-GLUT-devel       | Haskell GLUT library development
files                                    | Paket    
i | libglut3             | Freely licensed alternative to the GLUT
library                           | Paket    
  | libglut3-32bit       | Freely licensed alternative to the GLUT
library                           | Paket    
  | libmgl-glut7_3_0     | Mathgl window library for making high-quality scientific
graphics  


/Str.