* On i686 floating-point roundoff errors could sometimes cause this check to
  fail depending on the elapsed microseconds.  Improve rounding by adding a
  fractional bit.

--- glib-2.40.0/glib/tests/timer.c	2014-03-05 08:05:42.000000000 -0600
+++ glib-2.40.0/glib/tests/timer.c	2014-07-10 16:33:12.746862822 -0500
@@ -35,7 +35,7 @@
   elapsed = g_timer_elapsed (timer, &micros);
 
   g_assert_cmpfloat (elapsed, <, 1.0);
-  g_assert_cmpuint (micros, ==, ((guint64)(elapsed * 1e6)) % 1000000);
+  g_assert_cmpuint (micros, ==, ((guint64)(elapsed * 1e6 + 0.5)) % 1000000);
 
   g_timer_destroy (timer);
 }
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<div class='content'><div id='summary'><pre>
# GNU Guix --- Functional package management for GNU
# Copyright © 2018, 2019, 2020, 2022 Ludovic Courtès &lt;ludo@gnu.org&gt;
#
# This file is part of GNU Guix.
#
# GNU Guix is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or (at
# your option) any later version.
#
# GNU Guix is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GNU Guix.  If not, see &lt;http://www.gnu.org/licenses/&gt;.

#
# Test &apos;guix build --with-branch&apos;.
#

guix build --version

# &apos;guix build --with-branch&apos; requires access to the network to clone the
# Git repository below.

if ! guile -c &apos;(getaddrinfo &quot;www.gnu.org&quot; &quot;80&quot; AI_NUMERICSERV)&apos; 2&gt; /dev/null
then
    # Skipping.
    exit 77
fi

orig_drv=&quot;`guix build guile-gcrypt -d`&quot;
latest_drv=&quot;`guix build guile-gcrypt --with-branch=guile-gcrypt=master -d`&quot;
test -n &quot;$latest_drv&quot;
test &quot;$orig_drv&quot; != &quot;$latest_drv&quot;

# FIXME: &apos;-S&apos; currently doesn&apos;t work with non-derivation source.
# checkout=&quot;`guix build guile-gcrypt --with-branch=guile-gcrypt=master -S`&quot;
checkout=&quot;`guix gc --references &quot;$latest_drv&quot; | grep guile-gcrypt | grep -v -E &apos;(-builder|\.drv)&apos;`&quot;
test -d &quot;$checkout&quot;
test -f &quot;$checkout/COPYING&quot;

orig_drv=&quot;`guix build guix -d`&quot;
latest_drv=&quot;`guix build guix --with-branch=guile-gcrypt=master -d`&quot;
guix gc -R &quot;$latest_drv&quot; | grep guile-gcrypt-git.master
test &quot;$orig_drv&quot; != &quot;$latest_drv&quot;

v0_1_0_drv=&quot;`guix build guix --with-commit=guile-gcrypt=9e3eacdec1d -d`&quot;
guix gc -R &quot;$v0_1_0_drv&quot; | grep guile-gcrypt-git.9e3eacd
test &quot;$v0_1_0_drv&quot; != &quot;$latest_drv&quot;
test &quot;$v0_1_0_drv&quot; != &quot;$orig_drv&quot;

v0_1_0_drv=&quot;`guix build guix --with-commit=guile-gcrypt=v0.1.0 -d`&quot;
guix gc -R &quot;$v0_1_0_drv&quot; | grep guile-gcrypt-0.1.0
guix gc -R &quot;$v0_1_0_drv&quot; | grep guile-gcrypt-9e3eacd
test &quot;$v0_1_0_drv&quot; != &quot;$latest_drv&quot;
test &quot;$v0_1_0_drv&quot; != &quot;$orig_drv&quot;

guix build guix --with-commit=guile-gcrypt=000 -d &amp;&amp; false

exit 0
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