branch core-updates-frozen updated: gnu: glib: Avoid timer.c test failure on i686-linux.

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     new 35848d2  gnu: glib: Avoid timer.c test failure on i686-linux.
35848d2 is described below

commit 35848d2c2ed9263a4c15f5358fcb4ec26db8d18a
Author: Ludovic Courtès <ludo@gnu.org>
AuthorDate: Wed Sep 15 22:10:06 2021 +0200

    gnu: glib: Avoid timer.c test failure on i686-linux.
    
    * gnu/packages/glib.scm (glib)[arguments]: In 'disable-failing-tests'
    phase, modify "glib/tests/timer.c" on i[56]86 to address test failure.
---
 gnu/packages/glib.scm | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/gnu/packages/glib.scm b/gnu/packages/glib.scm
index d1d0f5b..c05a57d 100644
--- a/gnu/packages/glib.scm
+++ b/gnu/packages/glib.scm
@@ -231,6 +231,18 @@ shared NFS home directories.")
                (substitute* '("contenttype.c" "gdbus-address-get-session.c"
                               "gdbus-peer.c" "appinfo.c" "desktop-app-info.c")
                  (("[ \t]*g_test_add_func.*;") "")))
+
+             ,@(if (let ((system (or (%current-target-system)
+                                     (%current-system))))
+                     (or (string-prefix? "i686-" system)
+                         (string-prefix? "i586-" system)))
+                   ;; Add the 'volatile' qualifier for doubles to avoid excess
+                   ;; precision, which leads to test failures:
+                   ;; <https://gitlab.gnome.org/GNOME/glib/-/issues/820>.
+                   '((substitute* "glib/tests/timer.c"
+                       (("gdouble elapsed")
+                        "volatile gdouble elapsed")))
+                   '())
              #t))
          ;; Python references are not being patched in patch-phase of build,
          ;; despite using python-wrapper as input. So we patch them manually.