Re: [Caml-list] findlib help: how to specify dependencies against non-findlib packages ?

[Gerd Stolpmann <info@gerd-stolpmann.de>]

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Am Montag, den 02.10.2006, 11:24 +0200 schrieb Guillaume Rousse:
> I'm trying to add findlibsupport for camlimages.
> 
> It has a dependency on graphics, which is easily handled by adding a
> require variable in META file, as graphics provides findlib support.
> 
> However, camlimages can also get compiled with either lablgtk or
> lablgtk2 support (not both of them, as they have conflicting symbols),
> but none of those packages have findlib support. It means I can't
> ressort to smart dependency computation. I may eventually use the
> linkopts variable to add explicit linking flags (such as -I
> place/to/lablgtk2 lablgtk.cma), but this seem to be only possible for
> linking, not for compiling, whereas I also need to pass -I
> place/to/lablgtk2 option during compilation.
> 
> So, is this just not possible at all ?

Of course, it is possible: Just write your own META file for
lablgtk/lablgtk2 - this is what distros like GODI and Debian do. The
META file need not to be in the same directory as the library if you add
a line

directory="/path/where/the/library/really/is"

to the META file, so you can easily unify lablgtk's installation scheme
with the findlib requirements.

For your convenience, I attached the (generated) META file GODI uses for
lablgtk and lablgtk2.

Gerd
-- 
------------------------------------------------------------
Gerd Stolpmann * Viktoriastr. 45 * 64293 Darmstadt * Germany 
gerd@gerd-stolpmann.de          http://www.gerd-stolpmann.de
Phone: +49-6151-153855                  Fax: +49-6151-997714
------------------------------------------------------------

[-- Attachment #2: META for lablgtk --]
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description = "Bindings for gtk"
requires=""
requires(lablGL)="lablGL"
version="1.2.6"
archive(byte)="lablgtk.cma  gtkInit.cmo"
archive(native)="lablgtk.cmxa  gtkInit.cmx"
archive(byte,lablGL)="lablgtk.cma lablgtkgl.cma  gtkInit.cmo"
archive(native,lablGL)="lablgtk.cmxa lablgtkgl.cmxa  gtkInit.cmx"


[-- Attachment #3: META for lablgtk2 --]
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description = "Bindings for gtk2"
requires=""
requires(lablGL)="lablGL"
version="20051028"
archive(byte)="lablgtk.cma  lablglade.cma lablrsvg.cma lablgnomecanvas.cma lablgnomeui.cma lablpanel.cma gtkInit.cmo"
archive(native)="lablgtk.cmxa  lablglade.cmxa lablrsvg.cmxa lablgnomecanvas.cmxa lablgnomeui.cmxa lablpanel.cmxa gtkInit.cmx"
archive(byte,lablGL)="lablgtk.cma lablgtkgl.cma  lablglade.cma lablrsvg.cma lablgnomecanvas.cma lablgnomeui.cma lablpanel.cma gtkInit.cmo"
archive(native,lablGL)="lablgtk.cmxa lablgtkgl.cmxa  lablglade.cmxa lablrsvg.cmxa lablgnomecanvas.cmxa lablgnomeui.cmxa lablpanel.cmxa gtkInit.cmx"
archive(byte,mt) += "gtkThread.cmo"
archive(native,mt) += "gtkThread.cmx"
archive(byte,lablGL,mt) += "gtkThread.cmo"
archive(native,lablGL,mt) += "gtkThread.cmx"
archive(toploop,mt) += "gtkThInit.cmo"