Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.

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See also bug 1986479 (for clutter)

Building clutter-gtk with LTO was disabled for a while in Fedora by Jeff Law in 1.8.4-8:
  https://src.fedoraproject.org/rpms/clutter-gtk/c/8ca9a89937e77e663f9bcef11ec6e019abab7cde
with the message:
 # gobject introspection does not work with LTO.  There is an effort to fix this
 # in the appropriate project upstreams, so hopefully LTO can be enabled someday

Jeff later reenabled it in Fedora in 1.8.4-11:
  https://src.fedoraproject.org/rpms/clutter-gtk/c/31b43de21fe30f78778fa4eb9985c45c10161c42
(Jeff is no longer at Red Hat)

However, LTO is still disabled in clutter-gtk.spec in CentOS stream:
  https://gitlab.com/redhat/centos-stream/rpms/clutter-gtk/-/blob/c9s/clutter-gtk.spec
and RHEL 9 beta:
  http://pkgs.devel.redhat.com/cgit/rpms/clutter-gtk/tree/clutter-gtk.spec?h=rhel-9.0.0-beta
(both at 1.8.4-11)

Please look at re-enabling LTO for clutter-gtk in c9s and RHEL 9 so that it can benefit from LTO (smaller/faster binaries, deeper analysis for compiler warnings, etc).  

Hopefully it's just a trivial case of removing:
   %global _lto_cflags %{nil}
from the specfile; if not, let me know if you run into other issues and want help from the toolchain team.

Is there a link for the upstream issue?
Possibly these ones:
  https://gitlab.gnome.org/GNOME/gobject-introspection/-/issues/280
  https://bugzilla.redhat.com/show_bug.cgi?id=1676679
  https://gitlab.gnome.org/GNOME/gtk/-/issues/1692

Thanks!

See also:
  https://issues.redhat.com/browse/RHELPLAN-54371
  https://issues.redhat.com/browse/RHELBU-522

https://dashboard.osci.redhat.com/#/artifact/brew-build/aid/42800659?focus=id:d78c123f52c82fb4799e7c9db93fbff205880689eaf5195827573ac92729480a is green

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (new packages: clutter-gtk), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2022:2614