[gobject-introspection/wip/meson: 7/14] meson: Use symbol visibility for giscanner module

[Nirbheek Chauhan <nirbheekc src gnome org>]

commit 6be6249174b1d9c193fc3905544c8e5a75fde15f
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Wed Nov 22 16:23:49 2017 +0000

    meson: Use symbol visibility for giscanner module
    
    Remove the existing TODO and avoid playing games with the linker. We
    already have a mechanism in place for controlling he visibility of our
    symbols.
    
    Signed-off-by: Nirbheek Chauhan <nirbheek centricular com>

 giscanner/giscannermodule.c |    2 +-
 giscanner/meson.build       |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/giscanner/giscannermodule.c b/giscanner/giscannermodule.c
index 4c1f00f..77de82d 100644
--- a/giscanner/giscannermodule.c
+++ b/giscanner/giscannermodule.c
@@ -53,7 +53,7 @@
 #endif
 
 /* forward declaration */
-MOD_INIT(_giscanner);
+_GI_EXTERN MOD_INIT(_giscanner);
 
 #define NEW_CLASS(ctype, name, cname, num_methods)           \
 static const PyMethodDef _Py##cname##_methods[num_methods];    \
diff --git a/giscanner/meson.build b/giscanner/meson.build
index 5a92a16..dc166f5 100644
--- a/giscanner/meson.build
+++ b/giscanner/meson.build
@@ -72,9 +72,9 @@ giscanner_lib = static_library('giscanner',
   dependencies: [glib_dep, gobject_dep, gio_dep, gmodule_dep],
 )
 
-# TODO: -export-symbols-regex "init_giscanner|PyInit__giscanner"
 giscanner_pymod = py3.extension_module('_giscanner', 'giscannermodule.c',
   link_with: giscanner_lib,
+  c_args: [gi_hidden_visibility_cflags],
   dependencies: [glib_dep, gobject_dep, gio_dep, gmodule_dep,
                  dependency('python3')],
   install: true,