Link against libc++ only
local_fsize() was not caching the size.  Also add error checking.
Remove unnecessary null check (confuses Coverity).
Update Audacious.app
Add gdk-pixbuf patch to prevent invalid memory access on Win32.
buildsys: decouple unrelated side effects from $(USE_GTK).
libaudqt: add buildsys scaffolding
configure: add Qt5Gui module to dependencies
configure: also add qt5 widgets module
libaudqt: about window implementation
libaudqt/about: avoid strdup(2) usage
libaudqt: add a utility function to bring any window to the front
libaudqt: add equalizer implementation
Merge pull request #19 from kaniini/master

initial libaudqt work
libaudqt: add missing about.h
libaudqt: set window title on equalizer
Merge pull request #20 from kaniini/master

libaudqt: add missing about.h and rough equalizer implementation
libaudqt/about: avoid potential use-after-free with filename_build().

Pointed out by jlindgren.
gitignore: ignore moc files
libaudqt: move fileopener stuff from qtui