[bootstrappable] Re: diverse double compilation: using $ORIGIN?
- From: Jan Nieuwenhuizen <janneke@xxxxxxx>
- To: ludo@xxxxxxx (Ludovic Courtès)
- Date: Sun, 05 Nov 2017 17:27:24 +0100
Ludovic Courtès writes:
Usage: guix build gcc-dcc
Building gcc-dcc tests the diverse double compilation property
of the gcc that Guix is using.
* gnu/packages/bootstrappable.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
Awesome! Does it build fine out-of-the-box? I didn’t expect it to be
“this easy.” :-)
I got very positive feedback from a slightly guix-sceptic person saying
something like: you lisp guys can do quite a lot with very little code.
However, all this patch adds is a test that fails: gcc built with gcc is
not bit-for-bit the same as gcc built with clang.
Since then I have included the build-path-prefix-map patch, use -rpath
$ORIGIN instead of -rpath "-lib", switched to gcc-7.2.0. Still, no
bit-reproducibility.
Of course, Guix has the additional problem of the install-prefix that
debian and others do not have.
I'll be sending updated patches soon.
janneke.
--
Jan Nieuwenhuizen <janneke@xxxxxxx> | GNU LilyPond
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