RE: [Caml-list] Specifying a framework to link with using ocamlopt?

[David Allsopp <dra-news@metastack.com>]

Alan Schmitt wrote:
> On 23 févr. 2011, at 14:59, David Allsopp wrote:
> 
> > Not necessarily - even if "-framework OpenGL" is working then the
> linker must still obey "-lGL" (it can't simply ignore it). Try including
> -verbose in your ocamlopt switches - this will display the calls to all
> external programs and you'll be able to verify that "-framework OpenGL"
> is indeed being passed to the linker (it should be, though).
> 
> The "-verbose" option is very interesting indeed!

It certainly is an invaluable platform debugging aid! ocamlmklib also supports it - perhaps using it with the command which generates the library may help further?

> It tells me the "-
> framework OpenGL" and "-framework GLUT" specified in the ocamlmklib are
> indeed taken into account. But for some reason, there are extra
> (spurious) -lGL, -lGlut, and -lGlu.

Could this arise from -lgl_stubs?

> These libraries are generated this way:
> ocamlmklib  -o  GL  GL.cmx  -framework OpenGL -lgl_stubs ocamlmklib -o
> Glu  Glu.cmx  -framework OpenGL ocamlmklib  -o  Glut  Glut.cmx  -
> framework GLUT
> 
> which do not contain such linking primitives.
> 
> Could this be related to this warning:
> ld: warning: -read_only_relocs cannot be used with x86_64 ?

http://caml.inria.fr/mantis/view.php?id=4863 (see the notes, not the bug report)


David