jsonrpc: fix "file" property not working in AudioLibrary.GetSongDetails (fixes #14508)
video: bring back "Mark as watched/unwatched" into main context menu
[WIN32][cpluff] fixed resource leak.
[cximage] fixed: fixed memory leaks in ximadsp.cpp
[cximage] fixed memory leak in ximatif.cpp
Merge pull request #3265 from wsoltys/cleanup

some fixes in various files
[depends] add (non-native) sdl to linux
[depends] steal X11 and friends from system libs on linux
they are needed, but not in unified deps
[depends] fix ffmpeg cross compilation on linux
[buildsteps] fix linux64 build
[buildsteps] if multithreaded building fails on linux, rerun make singlethreaded once more
[buildsteps] there is no package on linux64 build