[Bug 91480] allow to build shared libraries in bundled projects on Windows

https://bugs.documentfoundation.org/show_bug.cgi?id=91480

--- Comment #4 from David Tardon <dtardon@redhat.com> ---
(In reply to Ashod Nakashian from comment #3)
> Thanks for the detailed feedback David.
>
> > So, that is probably because libtool finds no known dynamic linker.
>
> At least in the case of libwps shared lib was disabled explicitly for
> non-gcc compilers (actually, it assumes non-gcc to mean mvs/msc).

Do you speak about libwps itself here, or about its build inside libreoffice?
By the reference to msvc I assume the latter... In that case, libwps is not
being built using its native build mechanism on Windows, because that currently
cannot produce a shared library! The patch I attached switches the libwps build
to the native build mechanism, so it can be used for experimentation.

> I have a
> patch to enable it, but, as you note, it still defaults to static linking. I
> think I know where to look: libtool.

As I have said, you should check the build log first. There might be some info
message(s) from libtool telling why it switched back to static linking.

> > I agree that a ld-wrapper seems to be needed.
>
> I'll experiment with a wrapper and investigate how we could get it to
> cooperate with libtool to create shared libs.
>
> Btw, are we waiting for Windows support of shared libs to enable/test on
> other platforms, or does shared work on Linux? Do we know these libraries
> can/do link as shared? I haven't tried building on Linux, and it's easier to
> ask :)

It seems I was not clear enough on that in the initial description... The
libraries in question are already built as shared on all platforms. The
libraries' native build mechanism (IOW, configure + make) is used on Linux and
OS X. It is only Windows that needs special treatment (and the idea of this
task is to try to change that).

> > But not with the rest.
>
> You mean only with some projects? Not sure I get your point here.

I do not agree that there is any need to patch configure or Makefiles.

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