Zhu Zihao schreef op wo 30-03-2022 om 22:31 [+0800]:
> A simple examples,the m4 macro GUILE_PKG defined in guile.m4 helps
> autotools to check guile installation. If there's no generated
> configure
> script. Software user should have guile.m4 to generate configure
> script.
> A macro that detects guile installation requires a guile installation
> to
> work. Catch 22 :)

Guix has a 'guile' package, which seems unlikely to disappear, so this
does not seem to be a problem for Guix.

Greetings,
Maxime.