Merge branch 'fix-printbackend' into 'master'
authorMatthias Clasen <mclasen@redhat.com>
Fri, 22 May 2020 14:20:35 +0000 (14:20 +0000)
committerMatthias Clasen <mclasen@redhat.com>
Fri, 22 May 2020 14:20:35 +0000 (14:20 +0000)
Build media backends with common_cflags and export the symbol

Closes #2771

See merge request GNOME/gtk!1956


Trivial merge