meson: add -Wno-unused also to C++ args when gst debug system is disabled

diff --git a/meson.build b/meson.build
index 1eaaee1..45a2039 100644 (file)
--- a/meson.build
+++ b/meson.build
@@ -377,6 +377,7 @@ if host_system == 'android'
   gnustl_dep = dependency('gnustl', required : false)
 endif
 
+# Disable compiler warnings for unused variables and args if gst debug system is disabled
 if gst_dep.type_name() == 'internal'
   gst_debug_disabled = not subproject('gstreamer').get_variable('gst_debug')
 else
@@ -385,8 +386,16 @@ else
   gst_debug_disabled = cc.has_header_symbol('gst/gstconfig.h', 'GST_DISABLE_GST_DEBUG', dependencies: gst_dep)
 endif
 
-if gst_debug_disabled and cc.has_argument('-Wno-unused')
-  add_project_arguments('-Wno-unused', language: 'c')
+if gst_debug_disabled
+  message('GStreamer debug system is disabled')
+  if cc.has_argument('-Wno-unused')
+    add_project_arguments('-Wno-unused', language: 'c')
+  endif
+  if cxx.has_argument ('-Wno-unused')
+    add_project_arguments('-Wno-unused', language: 'cpp')
+  endif
+else
+  message('GStreamer debug system is enabled')
 endif
 
 gst_plugins_bad_args = ['-DHAVE_CONFIG_H']