i18n: move to separate .h file

So that we can include it where needed and don't cause redefined _()
macros for other projects.

Fixes #1120

src/daemon/pipewire.c

@@ -30,6 +30,8 @@
 #include <spa/utils/result.h>
 #include <pipewire/pipewire.h>
 
+#include <pipewire/i18n.h>
+
 #include "config.h"
 
 static void do_quit(void *data, int signal_number)

src/examples/media-session/alsa-monitor.c

@@ -50,7 +50,7 @@
 #include <spa/support/dbus.h>
 
 #include <pipewire/pipewire.h>
-#include <pipewire/main-loop.h>
+#include <pipewire/i18n.h>
 #include <extensions/session-manager.h>
 
 #include "media-session.h"

src/pipewire/i18n.h

@@ -0,0 +1,44 @@
+/* PipeWire
+ *
+ * Copyright © 2021 Wim Taymans
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef PIPEWIRE_I18N_H
+#define PIPEWIRE_I18N_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <spa/support/i18n.h>
+
+const char *pw_gettext(const char *msgid);
+const char *pw_ngettext(const char *msgid, const char *msgid_plural, unsigned long int n);
+
+#define _(String)	(pw_gettext(String))
+#define N_(String)	(String)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* PIPEWIRE_I18N_H */

src/pipewire/pipewire.h

@@ -30,7 +30,6 @@ extern "C" {
 #endif
 
 #include <spa/support/plugin.h>
-#include <spa/support/i18n.h>
 
 #include <pipewire/array.h>
 #include <pipewire/client.h>
@@ -155,12 +154,6 @@ struct spa_handle *pw_load_spa_handle(const char *lib,
 
 int pw_unload_spa_handle(struct spa_handle *handle);
 
-const char *pw_gettext(const char *msgid);
-const char *pw_ngettext(const char *msgid, const char *msgid_plural, unsigned long int n);
-
-#define _(String)	(pw_gettext(String))
-#define N_(String)	(String)
-
 #ifdef __cplusplus
 }
 #endif

src/tools/pw-cat.c

@@ -46,7 +46,7 @@
 #include <spa/debug/types.h>
 
 #include <pipewire/pipewire.h>
-#include <pipewire/global.h>
+#include <pipewire/i18n.h>
 #include <extensions/metadata.h>
 
 #include "midifile.h"

src/tools/pw-cli.c

@@ -42,6 +42,7 @@
 #include <spa/pod/builder.h>
 
 #include <pipewire/impl.h>
+#include <pipewire/i18n.h>
 
 #include <extensions/session-manager.h>