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Merge branch 'fix-msvc-older-glib' into 'main'

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modules/media: Fix Visual Studio builds with older GLib (<= 2.74.x)

See merge request GNOME/gtk!5605
This commit is contained in:
Matthias Clasen 2023-03-08 18:44:46 +00:00
commit bdd35c1695
3 changed files with 25 additions and 0 deletions
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7
meson.build
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@ -370,6 +370,13 @@ glib_dep = dependency('glib-2.0', version: glib_req)
gobject_dep = dependency('gobject-2.0', version: glib_req)
if os_win32
giowin32_dep = dependency('gio-windows-2.0', version: glib_req, required: win32_enabled)
if giowin32_dep.version().version_compare('<2.75.0')
if cc.get_id() == 'msvc' and get_option('default_library') != 'static'
# Override _GLIB_EXTERN on Visual Studio for media modules for glib <= 2.74.x, so that we
# avoid error C2375 (redefinition; different linkage) when building the g_io_module_*() bits
cdata.set('MODULES_OVERRIDE_GLIB_EXTERN', true)
endif
endif
endif
if os_unix
giounix_dep = dependency('gio-unix-2.0', version: glib_req, required: false)

9
modules/media/gtkffmediafile.c
View File

@ -19,6 +19,15 @@
#include "config.h"
/*
* Sadly, we need this to build on Visual Studio against glib-2.74.x or earlier,
* otherwise the build will fail when building the g_io_module_*() bits with error C2375
* (redefinition; different linkage). This must be before including the Gio headers.
*/
#if defined (_MSC_VER) && defined (MODULES_OVERRIDE_GLIB_EXTERN)
# define _GLIB_EXTERN __declspec(dllexport) extern
#endif
#include "gtkffmediafileprivate.h"
#include <glib/gi18n-lib.h>

9
modules/media/gtkgstmediafile.c
View File

@ -19,6 +19,15 @@
#include "config.h"
/*
* Sadly, we need this to build on Visual Studio against glib-2.74.x or earlier,
* otherwise the build will fail when building the g_io_module_*() bits with error C2375
* (redefinition; different linkage). This must be before including the Gio headers.
*/
#if defined (_MSC_VER) && defined (MODULES_OVERRIDE_GLIB_EXTERN)
# define _GLIB_EXTERN __declspec(dllexport) extern
#endif
#include "gtkgstmediafileprivate.h"
#include "gtkgstpaintableprivate.h"