Jan Nieuwenhuizen writes:
I have been building quite some versions of Guile the past week. There
re a couple of .go files that keep giving me problems wrt
nondeterminism:
web/server/http.go
(define *timer* (gettimeofday)) seemed suspect, but seems harmless.
rnrs/arithmetic/fixnums.go
make-implementation-restriction-violation seemed suspect, but commenting
it out does not seem to help.
After commenting out all of http.scm and fixnums.scm, yesterday I had 3
Guix builds on two machines (GuixSD and one Ubuntu+Guix) that were
bit-identical, but one build showed differences in
system/repl/commands.go
Apparently most of the time this file builds deterministicly, but some
times it does not!? Ideas?
In the mean time, one more obviously correct and trivial patch attatched
that removes a build time stamp.
Greetings,
Jan
>From 2050673bffaa0ba18fabb8e92c3bc388f40bcea5 Mon Sep 17 00:00:00 2001
From: Jan Nieuwenhuizen <jann...@gnu.org>
Date: Fri, 4 Nov 2016 16:12:55 +0100
Subject: [PATCH] Reproducible build: Set buildstamp to EPOCH.
* libguile/Makefile.am (libpath.h): Set buildstamp to EPOCH.
---
libguile/Makefile.am | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libguile/Makefile.am b/libguile/Makefile.am
index 31cff75..4471d16 100644
--- a/libguile/Makefile.am
+++ b/libguile/Makefile.am
@@ -743,7 +743,7 @@ libpath.h: $(srcdir)/Makefile.in $(top_builddir)/config.status
>> libpath.tmp
@echo ' { "LIBS", "@GUILE_LIBS@" }, \' >> libpath.tmp
@echo ' { "CFLAGS", "@GUILE_CFLAGS@" }, \' >> libpath.tmp
- @echo ' { "buildstamp", "'`date -u +'%Y-%m-%d %T'`'" }, \' >> libpath.tmp
+ @echo ' { "buildstamp", "'`date -u -d@0`'" }, \' >> libpath.tmp
@echo '}' >> libpath.tmp
$(AM_V_GEN)mv libpath.tmp libpath.h
--
2.10.1
--
Jan Nieuwenhuizen <jann...@gnu.org> | GNU LilyPond http://lilypond.org
Freelance IT http://JoyofSource.com | Avatar® http://AvatarAcademy.nl
