Re: [PATCH v6 3/3] Allow to build and run sign/digest on Windows

Luca Boccassi
2020-12-22T00:12:32Z

On Tue, 22 Dec 2020 at 00:03, Eric Biggers <ebiggers@kernel.org> wrote:
>
> On Mon, Dec 21, 2020 at 11:57:41PM +0000, Luca Boccassi wrote:
> > On Mon, 21 Dec 2020 at 23:53, Eric Biggers <ebiggers@kernel.org> wrote:
> > >
> > > On Mon, Dec 21, 2020 at 11:24:28PM +0000, Luca Boccassi wrote:
> > > > +### Building on Windows
> > > > +
> > > > +There is minimal support for building Windows executables using MinGW.
> > > > +```bash
> > > > + make CC=x86_64-w64-mingw32-gcc-win32
> > > > +```
> > > > +
> > > > +`fsverity.exe` will be built, and it supports the `digest` and `sign` commands.
> > > > +
> > > > +A Windows build of OpenSSL/libcrypto needs to be available.
> > >
> > > For me "CC=x86_64-w64-mingw32-gcc-win32" doesn't work; I need
> > > "x86_64-w64-mingw32-gcc" instead. Is this difference intentional?
> > >
> > > - Eric
> >
> > It's a distro setup difference I think, on Debian
> > x86_64-w64-mingw32-gcc is a symlink to x86_64-w64-mingw32-gcc-win32:
> >
> > $ ls -l /usr/bin/x86_64-w64-mingw32-gcc-win32
> > -rwxr-xr-x 2 root root 1160320 Nov 27 05:57
> > /usr/bin/x86_64-w64-mingw32-gcc-win32
> > $ ls -l /usr/bin/x86_64-w64-mingw32-gcc
> > lrwxrwxrwx 1 root root 40 Sep 27 18:41 /usr/bin/x86_64-w64-mingw32-gcc
> > -> /etc/alternatives/x86_64-w64-mingw32-gcc
> > $ ls -l /etc/alternatives/x86_64-w64-mingw32-gcc
> > lrwxrwxrwx 1 root root 37 Sep 27 18:44
> > /etc/alternatives/x86_64-w64-mingw32-gcc ->
> > /usr/bin/x86_64-w64-mingw32-gcc-win32
>
> Okay, it would be better to document the one that works on all distros.
>
> - Eric

Adjusted in v7.

Kind regards,
Luca Boccassi