Merge branch 'fix-3918' into 'master'
authorMatthias Clasen <mclasen@redhat.com>
Fri, 7 May 2021 11:08:57 +0000 (11:08 +0000)
committerMatthias Clasen <mclasen@redhat.com>
Fri, 7 May 2021 11:08:57 +0000 (11:08 +0000)
demos: Mark non-static signal handler symbols for export

Closes #3918

See merge request GNOME/gtk!3523


Trivial merge