master 7e97b33aa6: Clean up some variables in the Haiku code

[Po Lu]

branch: master
commit 7e97b33aa62c39111f33a94c487f0a174d06346d
Author: Po Lu <luangruo@yahoo.com>
Commit: Po Lu <luangruo@yahoo.com>

    Clean up some variables in the Haiku code
    
    * src/haikuterm.c: Add comments to some variables and clean up
    initializers.
    * src/haikuterm.h (haiku_frame_param_handlers): Move here
    instead.
---
 src/haikuterm.c | 13 ++++++++++---
 src/haikuterm.h |  2 ++
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/src/haikuterm.c b/src/haikuterm.c
index ced16d9f09..f08fe68187 100644
--- a/src/haikuterm.c
+++ b/src/haikuterm.c
@@ -43,17 +43,24 @@ along with GNU Emacs.  If not, see 
<https://www.gnu.org/licenses/>.  */
 /* Minimum and maximum values used for Haiku scroll bars.  */
 #define BE_SB_MAX 12000000
 
-struct haiku_display_info *x_display_list = NULL;
-extern frame_parm_handler haiku_frame_parm_handlers[];
+/* The single Haiku display (if any).  */
+struct haiku_display_info *x_display_list;
 
 /* This is used to determine when to evict the font lookup cache,
    which we do every 50 updates.  */
 static int up_to_date_count;
 
+/* List of defined fringe bitmaps.  */
 static void **fringe_bmps;
-static int max_fringe_bmp = 0;
 
+/* The amount of fringe bitmaps in that list.  */
+static int max_fringe_bmp;
+
+/* Alist of resources to their values.  */
 static Lisp_Object rdb;
+
+/* Non-zero means that a HELP_EVENT has been generated since Emacs
+   start.  */
 static bool any_help_event_p;
 
 char *
diff --git a/src/haikuterm.h b/src/haikuterm.h
index 30b474b1e1..1bff03ae39 100644
--- a/src/haikuterm.h
+++ b/src/haikuterm.h
@@ -205,6 +205,8 @@ extern struct font_driver const haikufont_driver;
 extern Lisp_Object tip_frame;
 extern struct frame *haiku_dnd_frame;
 
+extern frame_parm_handler haiku_frame_parm_handlers[];
+
 struct scroll_bar
 {
   /* These fields are shared by all vectors.  */