Windows DLLs using underscores instead of dashes

Since it shifted to a cmake build system libproj on windows has started using a naming scheme that separates components with underscores. This means the DLL is now libproj_9_1.dll instead of libproj-9-1.dll.

Assuming this is valid, the regexes at these points need to be updated.

FFI-CheckLib/lib/FFI/CheckLib.pm

Lines 93 to 98 in abd5339

    
           elsif($os eq 'MSWin32') 
        
           { 
        
             #  handle cases like libgeos-3-7-0___.dll and libgtk-2.0-0.dll 
        
             $pattern = [ qr{^(?:lib)?(\w+?)(?:-([0-9-\.]+))?_*\.dll$}i ]; 
        
             $version_split = qr/\-/; 
        
           }

I think this will do the trick but have not tested it yet.

  $pattern = [ qr{^(?:lib)?(\w+?)(?:[_-]([0-9-\._]+))?_*\.dll$}i ];
  $version_split = qr/[_\-]/;

Let me know if you want me to work up a PR.

Shawn.

Sounds reasonable. I can't think of how this will break anything.

just a heads up Fedora broke in CI when I bumped the version and I've not got around to fixing it (or deciding to just drop Fedora which might be what I end up doing) so don't worry if that is broken in CI.

	elsif($os eq 'MSWin32')
	{
	# handle cases like libgeos-3-7-0___.dll and libgtk-2.0-0.dll
	$pattern = [ qr{^(?:lib)?(\w+?)(?:-([0-9-\.]+))?_*\.dll$}i ];
	$version_split = qr/\-/;
	}