Re: [Boost-build] Darwin toolset -bundle option: impossible?

From: Reece Dunn (msclrhd_at_[hidden])
Date: 2006-06-13 08:48:16

Chad Carr wrote:
> I am attempting to build a pam module that works on OS X and cannot 
> figure out for the life of me how to get the -bundle option to link.dll 
> in the darwin toolset.  Indeed, the -dynamiclib option appears to be 
> hardcoded in the toolset, so unless there is some kind of modifier that 
> will allow dynamic libraries to be used in a pam context, I appear to be 
> on the path to writing my own generator.
> 
> Can anyone tell me a possible solution to this problem?  I am using 
> boost-build-2.0-m10.

You will need to modify the darwin toolset:

(1)  At the top, somewhere after the imports (just below the
"feature framework : : free ;" line), add:

   feature mac-bundle : no yes : propagated ;

This will allow you to write:

   lib mybundle : source.cpp : <mac-bundle>yes ;
   lib mydll : source2.cpp ;

where, for mydll, mac-bundle will default to no.

(2) Remove the -dynamiclib part of the darwin link.dll action.

(3) You now need to map the mac-bundle feature to darwin options.
You can do this by adding the following lines just below
"# flags darwin.link.dll OPTIONS : -Wl,-v ;":

   flags darwin.link.dll OPTIONS : <mac-bundle>no : -dynamiclib ;
   flags darwin.link.dll OPTIONS : <mac-bundle>yes : -bundle ;

Then you are ready to go :).

Q: Is the -dynamic option passed to the compiler when building a
DLL (the "flags darwin.compile OPTIONS <link>shared : -dynamic ;"
line) needed when producing a bundle?

A: Yes -- then leave it as it is.
A: No -- replace that line with:

   flags darwin.compile OPTIONS <link>shared/<mac-bundle>no : -dynamic ;

HTH,
- Reece
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