build: Drop use of G_DISABLE_DEPRECATED from the build system

It’s no longer used in any of the headers. See preceding commits.

Signed-off-by: Philip Withnall <withnall@endlessm.com>

docs/reference/glib/compiling.xml

@@ -93,11 +93,10 @@ this range will trigger compiler warnings.
 </para>
 
 <para>
-The older deprecation mechanism of hiding deprecated interfaces
+Since GLib 2.62, the older deprecation mechanism of hiding deprecated interfaces
 entirely from the compiler by using the preprocessor symbol
-G_DISABLE_DEPRECATED is still used for deprecated macros,
-enumeration values, etc. To detect uses of these in your code,
-use the commandline option <literal>-DG_DISABLE_DEPRECATED</literal>.
+<literal>G_DISABLE_DEPRECATED</literal> has been removed. All deprecations
+are now handled using the above mechanism.
 </para>
 
 <para>

docs/reference/meson.build

@@ -26,7 +26,6 @@ foreach version : stable_2_series_versions
 endforeach
 
 gtkdoc_common_scan_args = [
-  '--deprecated-guards=G_DISABLE_DEPRECATED',
   '--ignore-decorators=' + '|'.join(ignore_decorators),
 ]
 

gio/fam/meson.build

@@ -3,7 +3,7 @@ if not get_option('fam')
 endif
 
 fam_dep = cc.find_library('fam')
-fam_c_args = ['-DG_DISABLE_DEPRECATED'] + gio_c_args
+fam_c_args = gio_c_args
 if cc.has_function('FAMNoExists', dependencies : fam_dep)
   fam_c_args += '-DHAVE_FAM_NO_EXISTS=1'
 endif

gio/inotify/meson.build

@@ -12,4 +12,4 @@ inotify_lib = static_library('inotify',
   include_directories : [configinc, glibinc, gmoduleinc],
   dependencies : [gioenumtypes_dep, libglib_dep, libgobject_dep],
   pic : true,
-  c_args : [ '-DG_DISABLE_DEPRECATED' ] + gio_c_args)
+  c_args : gio_c_args)

gio/kqueue/meson.build

@@ -10,4 +10,4 @@ kqueue_lib = static_library('kqueue',
   include_directories : [configinc, glibinc, gmoduleinc],
   dependencies : [gioenumtypes_dep],
   pic : true,
-  c_args : [ '-DG_DISABLE_DEPRECATED' ] + gio_c_args)
+  c_args : gio_c_args)

gio/win32/meson.build

@@ -12,4 +12,4 @@ giowin32_lib = static_library('giowin32',
   include_directories : [configinc, glibinc, gioinc, gmoduleinc],
   dependencies : [libintl, gioenumtypes_dep],
   pic : true,
-  c_args : [ '-DG_DISABLE_DEPRECATED' ] + gio_c_args)
+  c_args : gio_c_args)

gmodule/meson.build

@@ -103,7 +103,7 @@ libgmodule = library('gmodule-2.0',
   install : true,
   include_directories : [configinc, gmoduleinc],
   dependencies : [libdl_dep, libglib_dep],
-  c_args : ['-DG_LOG_DOMAIN="GModule"', '-DG_DISABLE_DEPRECATED'] + glib_hidden_visibility_args,
+  c_args : ['-DG_LOG_DOMAIN="GModule"'] + glib_hidden_visibility_args,
   link_args : [glib_link_flags],
 )