Re: ffi-helper: looking for C libraries to try

[Matt Wette <matt.wette@gmail.com>]

> On Jul 14, 2017, at 5:55 PM, Amirouche <amirouche@hypermove.net> wrote:
> 
> Can you provide guidance regarding how to run compile-ffi, here what I've done so far:
> 
> $ git clone https://git.savannah.nongnu.org/git/nyacc.git
> $ cd nyacc
> $ git checkout c99dev
> $ cd examples/nyacc/lang/c99
> $ source env.sh
> 
> Then:
> 
> $ guild compile-ffi cairo/cairo.ffi
> 
> ;;; note: auto-compilation is enabled, set GUILE_AUTO_COMPILE=0
> ;;;       or pass the --no-auto-compile argument to disable.
> ;;; compiling /home/amirouche/.guix-profile/bin/guild
> ;;; compiled /home/amirouche/.cache/guile/ccache/2.2-LE-8-3.A/gnu/store/1pzfigry5bnh3n146w0ib77vkd2g6jdc-guile-2.2.2/bin/guild.go
> guild: unknown script "compile-ffi"
> Try `guild help' for more information.
> 
> I have guile-bytestructures
> 

Hmm.  Yea, I goofed on env.sh.  This seems to work for me:

#!/bin/sh
# source this file: $ . env.sh
topdir=`(cd ../../../..; pwd)`
if [ "X$GUILE_LOAD_PATH" = "X" ]; then
 GUILE_LOAD_PATH=$topdir/module:$topdir/examples:$topdir/examples/nyacc/lang/c99
else
 GUILE_LOAD_PATH=$topdir/module:$topdir/examples:$topdir/examples/nyacc/lang/c99:$GUILE_LOAD_PATH
fi;
export GUILE_LOAD_PATH

mwette$ guild compile-ffi cairo/cairo.ffi
TODO: compile-ffi args, arrays, extern variables