GHOST/Wayland: support dynamic loading libraries for Wayland

Add intern/wayland_dynload which is used when WITH_GHOST_WAYLAND_DYNLOAD
is enabled (off by default). When enabled, systems without Wayland
installed will fall back to X11.

This allows Blender to dynamically load:
- libwayland-client
- libwayland-cursor
- libwayland-egl
- libdecor-0 (when WITH_GHOST_WAYLAND_LIBDECOR is enabled).

1 files changed, 13 insertions, 6 deletions

diff --git a/build_files/cmake/platform/platform_unix.cmake b/build_files/cmake/platform/platform_unix.cmake
index dff860d9876..4b654420531 100644
--- a/build_files/cmake/platform/platform_unix.cmake
+++ b/build_files/cmake/platform/platform_unix.cmake
@@ -641,12 +641,17 @@ if(WITH_GHOST_WAYLAND)
   endif()
 
   list(APPEND PLATFORM_LINKLIBS
-    ${wayland-client_LINK_LIBRARIES}
-    ${wayland-egl_LINK_LIBRARIES}
     ${xkbcommon_LINK_LIBRARIES}
-    ${wayland-cursor_LINK_LIBRARIES}
   )
 
+  if(NOT WITH_GHOST_WAYLAND_DYNLOAD)
+    list(APPEND PLATFORM_LINKLIBS
+      ${wayland-client_LINK_LIBRARIES}
+      ${wayland-egl_LINK_LIBRARIES}
+      ${wayland-cursor_LINK_LIBRARIES}
+    )
+  endif()
+
   if(WITH_GHOST_WAYLAND_DBUS)
     list(APPEND PLATFORM_LINKLIBS
       ${dbus_LINK_LIBRARIES}
@@ -655,9 +660,11 @@ if(WITH_GHOST_WAYLAND)
   endif()
 
   if(WITH_GHOST_WAYLAND_LIBDECOR)
-    list(APPEND PLATFORM_LINKLIBS
-      ${libdecor_LIBRARIES}
-    )
+    if(NOT WITH_GHOST_WAYLAND_DYNLOAD)
+      list(APPEND PLATFORM_LINKLIBS
+        ${libdecor_LIBRARIES}
+      )
+    endif()
     add_definitions(-DWITH_GHOST_WAYLAND_LIBDECOR)
   endif()
 endif()