Apply uring_sema_patch_v1.diff

Author: hackorum

src/backend/port/meson.build

@@ -4,8 +4,11 @@ backend_sources += files(
   'atomics.c',
 )
 
-
-if cdata.has('USE_UNNAMED_POSIX_SEMAPHORES') or cdata.has('USE_NAMED_POSIX_SEMAPHORES')
+# Linux speciifc
+if cdata.has('USE_LIBURING')
+  backend_sources += files('uring_sema.c')
+elif cdata.has('USE_UNNAMED_POSIX_SEMAPHORES') or cdata.has('USE_NAMED_POSIX_SEMAPHORES')
+  #if cdata.has('USE_UNNAMED_POSIX_SEMAPHORES') or cdata.has('USE_NAMED_POSIX_SEMAPHORES')
   backend_sources += files('posix_sema.c')
 endif