meson: Enable shm unit test

sys/shm/meson.build

@@ -6,22 +6,24 @@ shm_sources = [
   'gstshmsink.c',
 ]
 
+shm_enabled = false
 rt_dep = cc.find_library ('rt', required: false)
 
 if cc.has_header ('sys/socket.h') and (host_system == 'osx' or
     host_system == 'bsd' or rt_dep.found())
 
-  deps = [gstbase_dep]
+  shm_enabled = true
+  shm_deps = [gstbase_dep]
 
   if rt_dep.found()
-    deps += [rt_dep]
+    shm_deps += [rt_dep]
   endif
   
   gstshm = library('gstshm',
     shm_sources,
     c_args : gst_plugins_bad_args + ['-DSHM_PIPE_USE_GLIB'],
     include_directories : [configinc],
-    dependencies : deps,
+    dependencies : shm_deps,
     install : true,
     install_dir : plugins_install_dir,
   )

tests/check/meson.build

@@ -47,6 +47,7 @@ base_tests = [
   [['elements/pcapparse.c']],
   [['elements/pnm.c']],
   [['elements/schroenc.c'], not schro_dep.found(), [schro_dep]],
+  [['elements/shm.c'], not shm_enabled, shm_deps],
   [['elements/rtponvifparse.c']],
   [['elements/rtponviftimestamp.c']],
   [['elements/videoframe-audiolevel.c']],