Re: Win32 libltdl issue

[Bob Friesenhahn]

On Wed, 27 Apr 2005, Howard Chu wrote:
> > Related question: Do I have to specify the declspec(export) in the same
> > translation unit in which I define the function?  This is what bugs us
> > in mingw ATM.  Specifying the declspec in another translation unit
> > seems to work with cygwin but fail on mingw.  (Of course, the unit gets
> > linked into the same lib in any case).
>
> Yes, I think so, but not entirely sure. Since all the code I work with always 
> puts the declarations in a header file that every source file includes, it 
> has never been an issue for me.

The declarations should be consistently applied across all translation 
units in the same DLL.  If a function prototype is supplied, then it 
should be appropriately scoped during compilation.

> I see that more recent versions of cygwin/mingw appear to have made using 
> declspec unnecessary:
>
> http://www.redhat.com/docs/manuals/enterprise/RHEL-4-Manual/gnu-linker/win32.html
>
> I don't know how others would feel about it, but perhaps you could just say 
> "version >= XX of cygwin/mingw binutils are required" and forget about all of 
> these issues.

This assumes that libtool should only support the GCC compiler under 
Windows.  Microsoft, Borland, and others, need not apply.  Is there a 
good reason to rule out all compilers except for GCC?

Bob
======================================
Bob Friesenhahn
address@hidden, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/