Add conditional for pkgconfig(gconf-2.0) BuildRequires, and pass
conditional --disable-gconf to configure: no longer pull in
obsolete gconf2 for Tumbleweed.
# xulrunner/gecko patches
mozilla-nongnome-proxies.patch
mozilla-kde.patch
mozilla-ntlm-full-path.patch
mozilla-openaes-decl.patch
mozilla-no-stdcxx-check.patch
mozilla-reduce-files-per-UnifiedBindings.patch
mozilla-aarch64-startup-crash.patch
mozilla-bmo256180.patch
mozilla-i586-DecoderDoctorLogger.patch
mozilla-i586-domPrefs.patch
mozilla-enable-csd.patch
mozilla-fix-skia-aarch64.patch
mozilla-bmo1375074.patch
# Firefox patches
firefox-kde.patch
firefox-branded-icons.patch