Subject: [bug#27344] [PATCH v3 6/8] gnu: Add freehdl.

From: [email-masked] (Ludovic Courtès)
Date: Wed, 11 Oct 2017 10:19:27 +0200

Theodoros Foradis <[email-masked]> skribis:

> * gnu/packages/engineering.scm (freehdl): New variable.

I’ve applied the patch.  \o/

I have one question for which I couldn’t find an answer in the previous
discussions:

> +         (add-after 'configure 'patch-freehdl-pc
> +           (lambda* (#:key inputs #:allow-other-keys)
> +             (substitute* "freehdl.pc"
> +               (("=g\\+\\+")
> +                (string-append "=" (assoc-ref inputs "gcc")
> +                               "/bin/g++"))
> +               (("=libtool")
> +                (string-append "=" (assoc-ref inputs "libtool")
> +                               "/bin/libtool")))
> +             #t))

The effect of this is to retain a reference to GCC, Libtool, and all
their dependencies, which makes the closure of FreeHDL much bigger.

We could avoid it by just putting this in ‘freehdl.pc’:

  cxx=g++
  libtool=libtool

Now, whether this will work depends on whether/how users of ‘freehdl.pc’
use these variables.

Could you check whether that would work?

TIA!

Ludo’.