Cleanup: correct usage of extern-C blocks in various places

This removes extern-C blocks around other includes and adds
such blocks for some headers that need them.

13 files changed, 104 insertions, 0 deletions

diff --git a/source/blender/windowmanager/gizmo/WM_gizmo_api.h b/source/blender/windowmanager/gizmo/WM_gizmo_api.h
index 07a3f0445bb..1066f009214 100644
--- a/source/blender/windowmanager/gizmo/WM_gizmo_api.h
+++ b/source/blender/windowmanager/gizmo/WM_gizmo_api.h
@@ -52,6 +52,10 @@ struct wmWindowManager;
 
 #include "wm_gizmo_fn.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* -------------------------------------------------------------------- */
 /* wmGizmo */
 
@@ -396,4 +400,8 @@ void WM_gizmo_group_tag_remove(struct wmGizmoGroup *gzgroup);
 bool WM_gizmo_group_type_poll(const struct bContext *C, const struct wmGizmoGroupType *gzgt);
 void WM_gizmo_group_refresh(const struct bContext *C, struct wmGizmoGroup *gzgroup);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __WM_GIZMO_API_H__ */
diff --git a/source/blender/windowmanager/gizmo/WM_gizmo_types.h b/source/blender/windowmanager/gizmo/WM_gizmo_types.h
index 3863e3bd797..5def7f8d2f9 100644
--- a/source/blender/windowmanager/gizmo/WM_gizmo_types.h
+++ b/source/blender/windowmanager/gizmo/WM_gizmo_types.h
@@ -40,6 +40,10 @@ struct wmKeyConfig;
 
 #include "DNA_listBase.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* -------------------------------------------------------------------- */
 /* Enum Typedef's */
 
@@ -506,4 +510,8 @@ typedef enum eWM_GizmoFlagMapDrawStep {
 } eWM_GizmoFlagMapDrawStep;
 #define WM_GIZMOMAP_DRAWSTEP_MAX 2
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __WM_GIZMO_TYPES_H__ */
diff --git a/source/blender/windowmanager/gizmo/wm_gizmo_fn.h b/source/blender/windowmanager/gizmo/wm_gizmo_fn.h
index 58b58fa01d0..00a3f476bac 100644
--- a/source/blender/windowmanager/gizmo/wm_gizmo_fn.h
+++ b/source/blender/windowmanager/gizmo/wm_gizmo_fn.h
@@ -27,6 +27,10 @@
 
 struct wmMsgBus;
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* wmGizmoGroup */
 typedef bool (*wmGizmoGroupFnPoll)(const struct bContext *,
                                    struct wmGizmoGroupType *) ATTR_WARN_UNUSED_RESULT;
@@ -85,4 +89,8 @@ typedef struct wmGizmoPropertyFnParams {
   void *user_data;
 } wmGizmoPropertyFnParams;
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __WM_GIZMO_FN_H__ */
diff --git a/source/blender/windowmanager/gizmo/wm_gizmo_wmapi.h b/source/blender/windowmanager/gizmo/wm_gizmo_wmapi.h
index cc9ccc5f4bb..edded4c7620 100644
--- a/source/blender/windowmanager/gizmo/wm_gizmo_wmapi.h
+++ b/source/blender/windowmanager/gizmo/wm_gizmo_wmapi.h
@@ -36,6 +36,10 @@ struct wmEventHandler_Op;
 struct wmGizmoMap;
 struct wmOperatorType;
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* -------------------------------------------------------------------- */
 /* wmGizmo */
 
@@ -92,4 +96,8 @@ struct ListBase *wm_gizmomap_groups_get(wmGizmoMap *gzmap);
 
 void wm_gizmomaptypes_free(void);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __WM_GIZMO_WMAPI_H__ */
diff --git a/source/blender/windowmanager/message_bus/wm_message_bus.h b/source/blender/windowmanager/message_bus/wm_message_bus.h
index 8020be3017a..74472386a39 100644
--- a/source/blender/windowmanager/message_bus/wm_message_bus.h
+++ b/source/blender/windowmanager/message_bus/wm_message_bus.h
@@ -34,6 +34,10 @@ struct wmMsgSubscribeKey;
 struct wmMsgSubscribeValue;
 struct wmMsgSubscribeValueLink;
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef void (*wmMsgNotifyFn)(struct bContext *C,
                               struct wmMsgSubscribeKey *msg_key,
                               struct wmMsgSubscribeValue *msg_val);
@@ -287,4 +291,8 @@ void WM_msg_publish_ID(struct wmMsgBus *mbus, struct ID *id);
   } \
   ((void)0)
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __WM_MESSAGE_BUS_H__ */
diff --git a/source/blender/windowmanager/wm.h b/source/blender/windowmanager/wm.h
index 16aa5cb44db..2b59e047f23 100644
--- a/source/blender/windowmanager/wm.h
+++ b/source/blender/windowmanager/wm.h
@@ -30,6 +30,10 @@ struct wmWindow;
 
 #include "gizmo/wm_gizmo_wmapi.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef struct wmPaintCursor {
   struct wmPaintCursor *next, *prev;
 
@@ -97,4 +101,8 @@ void wm_stereo3d_set_cancel(bContext *C, wmOperator *op);
 void wm_open_init_load_ui(wmOperator *op, bool use_prefs);
 void wm_open_init_use_scripts(wmOperator *op, bool use_prefs);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif
diff --git a/source/blender/windowmanager/wm_cursors.h b/source/blender/windowmanager/wm_cursors.h
index 7a28aeb3c70..cdd6b325063 100644
--- a/source/blender/windowmanager/wm_cursors.h
+++ b/source/blender/windowmanager/wm_cursors.h
@@ -27,6 +27,10 @@
 struct wmEvent;
 struct wmWindow;
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef enum WMCursorType {
   WM_CURSOR_DEFAULT = 1,
   WM_CURSOR_TEXT_EDIT,
@@ -77,4 +81,8 @@ typedef enum WMCursorType {
 void wm_init_cursor_data(void);
 bool wm_cursor_arrow_move(struct wmWindow *win, const struct wmEvent *event);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __WM_CURSORS_H__ */
diff --git a/source/blender/windowmanager/wm_draw.h b/source/blender/windowmanager/wm_draw.h
index ff2fc25333a..a675647f57a 100644
--- a/source/blender/windowmanager/wm_draw.h
+++ b/source/blender/windowmanager/wm_draw.h
@@ -30,6 +30,10 @@ struct GPUOffScreen;
 struct GPUTexture;
 struct GPUViewport;
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef struct wmDrawBuffer {
   struct GPUOffScreen *offscreen;
   struct GPUViewport *viewport;
@@ -50,4 +54,8 @@ void wm_draw_region_test(struct bContext *C, struct ScrArea *area, struct ARegio
 
 struct GPUTexture *wm_draw_region_texture(struct ARegion *region, int view);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __WM_DRAW_H__ */
diff --git a/source/blender/windowmanager/wm_event_system.h b/source/blender/windowmanager/wm_event_system.h
index efcf40d03eb..c61ba61f55d 100644
--- a/source/blender/windowmanager/wm_event_system.h
+++ b/source/blender/windowmanager/wm_event_system.h
@@ -34,6 +34,10 @@ struct ARegion;
 struct GHOST_TabletData;
 struct ScrArea;
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* wmKeyMap is in DNA_windowmanager.h, it's saveable */
 
 /** Custom types for handlers, for signaling, freeing */
@@ -165,4 +169,8 @@ void wm_dropbox_free(void);
 void wm_drags_check_ops(bContext *C, const wmEvent *event);
 void wm_drags_draw(bContext *C, wmWindow *win, rcti *rect);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __WM_EVENT_SYSTEM_H__ */
diff --git a/source/blender/windowmanager/wm_event_types.h b/source/blender/windowmanager/wm_event_types.h
index ffed86abfe7..16b872c3c9c 100644
--- a/source/blender/windowmanager/wm_event_types.h
+++ b/source/blender/windowmanager/wm_event_types.h
@@ -26,6 +26,10 @@
 #ifndef __WM_EVENT_TYPES_H__
 #define __WM_EVENT_TYPES_H__
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* customdata type */
 enum {
   EVT_DATA_TIMER = 2,
@@ -489,4 +493,8 @@ enum {
   GESTURE_MODAL_CIRCLE_SIZE = 11,
 };
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __WM_EVENT_TYPES_H__ */
diff --git a/source/blender/windowmanager/wm_files.h b/source/blender/windowmanager/wm_files.h
index 42eab35cdb9..d7f8c3fc583 100644
--- a/source/blender/windowmanager/wm_files.h
+++ b/source/blender/windowmanager/wm_files.h
@@ -28,6 +28,10 @@ struct Main;
 struct wmGenericCallback;
 struct wmOperatorType;
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* wm_files.c */
 void wm_history_file_read(void);
 void wm_homefile_read(struct bContext *C,
@@ -68,4 +72,8 @@ void WM_OT_append(struct wmOperatorType *ot);
 void WM_OT_lib_relocate(struct wmOperatorType *ot);
 void WM_OT_lib_reload(struct wmOperatorType *ot);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __WM_FILES_H__ */
diff --git a/source/blender/windowmanager/wm_surface.h b/source/blender/windowmanager/wm_surface.h
index bc1cc825e4b..8ab6301e8c9 100644
--- a/source/blender/windowmanager/wm_surface.h
+++ b/source/blender/windowmanager/wm_surface.h
@@ -27,6 +27,10 @@
 
 struct bContext;
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef struct wmSurface {
   struct wmSurface *next, *prev;
 
@@ -59,4 +63,8 @@ void wm_surface_clear_drawable(void);
 void wm_surface_set_drawable(wmSurface *surface, bool activate);
 void wm_surface_reset_drawable(void);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __WM_SURFACE_H__ */
diff --git a/source/blender/windowmanager/wm_window.h b/source/blender/windowmanager/wm_window.h
index 5ca5711b4f2..e3e8abae531 100644
--- a/source/blender/windowmanager/wm_window.h
+++ b/source/blender/windowmanager/wm_window.h
@@ -26,6 +26,10 @@
 
 struct wmOperator;
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* *************** internal api ************** */
 void wm_ghost_init(bContext *C);
 void wm_ghost_exit(void);
@@ -85,4 +89,8 @@ int wm_window_new_main_exec(bContext *C, struct wmOperator *op);
 
 void wm_test_autorun_warning(bContext *C);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __WM_WINDOW_H__ */