MSYS+MSVC for libtool branch-2-0, take 2

[Peter Ekberg]

Hello,

I have now fixed at least some issues with the previous
patch. I changed $libname_spec to plain $name for MSVC
as that seems to be the naming convention used by MS.

I also fixed locating potential dependent libs without
regard to the filename case (i.e -lwsock32 on the
link line will be matched by the file WSOCK32.lib).

I realize that this still is not in shape for a commit.
There's not even a changelog :-), but I'd really
appreciate any pointers on how to get it into shape.

Cheers,
Peter

msys_msvc-2.patch
Description: msys_msvc-2.patch