On second display of LV2 effect using an X11UI, Audacity
would hang due to the glib class not being in the expected
state.
Workaround is to not unload the suil wrapper library. The
unload was already being bypassed on Windows so I'm unsure
why the author didn't do it on the other platforms.
libsuil uses directly symbols of X11 when compiling with GTK2. The build
will fail if compiled with -Wl,--as-needed:
[6/6] cshlib: build/src/x11_in_gtk2.c.3.o -> build/libsuil_x11_in_gtk2.so
src/x11_in_gtk2.c.3.o: In function `forward_key_event':
lib-src/lv2/suil/build/../src/x11_in_gtk2.c:159: undefined reference to `XSendEvent'
src/x11_in_gtk2.c.3.o: In function `x_window_is_valid':
lv2/suil/build/../src/x11_in_gtk2.c:71: undefined reference to `XQueryTree'
src/x11_in_gtk2.c.3.o: In function `forward_size_request':
lib-src/lv2/suil/build/../src/x11_in_gtk2.c:172: undefined reference to `XResizeWindow'
collect2: error: ld returned 1 exit status
Waf: Leaving directory `lib-src/lv2/suil/build'
Build failed
Therefore link against X11 when using GTK2.
