cmake HAVE_XSYNC_H examples

tanis2000/binocle-c src/deps/sdl/cmake/sdlchecks.cmake :310 

find_file(HAVE_XSYNC_H NAMES "X11/extensions/sync.h" HINTS "${X11_INCLUDEDIR}")

cvet/fonline ThirdParty/SDL/cmake/sdlchecks.cmake :310 

find_file(HAVE_XSYNC_H NAMES "X11/extensions/sync.h" HINTS "${X11_INCLUDEDIR}")

RavEngine/RavEngine deps/SDL/cmake/sdlchecks.cmake :310 

find_file(HAVE_XSYNC_H NAMES "X11/extensions/sync.h" HINTS "${X11_INCLUDEDIR}")

ComputationalBiomechanicsLab/opensim-creator third_party/SDL/cmake/sdlchecks.cmake :310 

find_file(HAVE_XSYNC_H NAMES "X11/extensions/sync.h" HINTS "${X11_INCLUDEDIR}")

godlikepanos/anki-3d-engine ThirdParty/Sdl3/cmake/sdlchecks.cmake :310 

find_file(HAVE_XSYNC_H NAMES "X11/extensions/sync.h" HINTS "${X11_INCLUDEDIR}")