Re: Obsoleting LT_SCOPE

[Peter Rosin]

Gary V. Vaughan skrev 2011-10-25 12:51:
> Hi Chuck,
> 
> I note that no other GNU projects that I'm aware of jump through all the
> __declspec hoops that the libltdl API tries to provide through LT_SCOPE.
> Is any of this stuff still required on any non-museum Windows compiler
> that would break if I removed it?
> 
> Here's what I'm proposing to do for the upcoming libtool alpha release:
> 
>   1. Remove all traces of LT_SCOPE, and just use plain 'extern' in
>      public header files.
>   2. Remove the code for setting and passing LTDL_DLL_IMPORT.
>   3. I can then safely eliminate $prefix/include/libltdl/lt_system.h,
>      and simplify the public headers for libltdl considerably.
> 
> Do you forsee any issues on Windows with my doing that?
> 
> I'm almost certain that modern gcc and hence cygwin and variants will
> continue to work correctly without LT_SCOPE, LTDL_DLL_IMPORT and friends,
> but I have no clue whether vendor compilers that currently work (or at
> least are supported and supposed to work) with the current release are
> relying on LT_SCOPE magic from libltdl.

I'm fairly certain that removing LT_SCOPE wholesale would break Libtool
in one way or the other for Microsoft Visual C. Please don't do it
without checking the effects on the testsuite first.

I can check if you provide a patch.

Cheers,
Peter