On Fri, Apr 25, 2025 at 6:33 AM Bruno Haible <br...@clisp.org> wrote: > > Nikolaos Chatzikonstantinou wrote: > > > One problem I see with Rust is that currently it does not integrate well > > > with the GNU Build system, in particular with VPATH builds (see [3] for > > > an example integration). Any improvements on that front would be welcome. > > > > > > [3] > > > https://git.savannah.gnu.org/gitweb/?p=gettext.git;a=tree;f=gettext-tools/examples/hello-rust;hb=HEAD > > > > What is the issue with VPATH builds? > > The issue is that 'cargo' mandates a certain directory layout of the > package, that is incompatible with VPATH builds.
In the comments of configure.ac hello-rust claims to solve this issue though, is that not enough? I noticed that you're the author of it, so you must have something in mind. > > I read the comments in > > configure.ac of that link, it seems to copy certain files into the > > build directory and then uses cargo. Would you rather if it used rustc > > directly? > > How can a package not use 'cargo' if it needs some Rust libraries? At least in my case of reimplementing m4 in Rust, I can probably do it only using std Rust, and then it's easy to use the rustc compiler directly avoiding cargo. Regards, Nikolaos Chatzikonstantinou
