Add script 'get_dlibcurl32', to auto-create Win32 libcurl import lib.

[Abscissa]

Unlike Posix and Win64, the standard libcurl binaries aren't compatible with DMD on Win32. Instead, the Win32 user has to go through various steps to get a libcurl import lib. Since libcurl is required by std.net.curl and certain DMD tools, I made this script to automate the process.

This has zero prerequisites other than an active internet connection (and a working D compiler to compile this tool).

[ghost]

To avoid having to download the basic utilities package if the user already has implib installed, you could try using this:

import std.process;
bool hasImplib = executeShell("implib /h").output.startsWith("Digital Mars Import Library Manager");

[ghost]

Could you add an output printout saying Use the libcurl.lib import library in the dlibcurl32-7.32.0 folder, since it might not be obvious to people what file they need to use.

The implib output is a little verbose, perhaps route it to > nul? Or maybe that would silence errors, I'm not sure.

But otherwise, I've tested it and it seems to work.

[Abscissa]

The implib output is a little verbose, perhaps route it to > nul? Or maybe that would silence errors, I'm not sure.

Unfortunately, implib appears to send its error messages to stdout instead of stderr, so yea, that would silence errors.

I have added an output printout as you suggested.

[ghost]

Excellent. Thanks for the hard work!

[MartinNowak]

This doesn't work correctly. The curl.dll has dependencies on other dlls, among them zlib1.dll which is not included in the downloaded binary release.

I think it's a better approach to build statically linked libcurl.dll and the OMF import library according to Curl on Windows. AFAIK this is already done for the windows installer and the release, what else do we need this tool for?