• Add QT5 and KDE5 options [1]
• Fix build with gcc on !libc++ archs [2]
• Rework patch-sal_osl_unx_thread.cxx for more portable [3]
• Fix pkg-plist while GTK3 enabled

PR: 236748 [1], 236765 [2]
Submitted by: VVD <vvd@unislabs.com> [1], jhibbits [2],

		Greg Veldman <freebsd@gregv.net> [3]