Fix some portability problems with 'inline'.

* dispextern.h (window_box, window_box_height, window_text_bottom_y)
(window_box_width, window_box_left, window_box_left_offset)
(window_box_right, window_box_right_offset): Declare extern.
Otherwise, these inline functions do not conform to C99 and
are miscompiled by Microsoft compilers.  Reported by Eli Zaretskii in
<http://lists.gnu.org/archive/html/emacs-devel/2011-11/msg00084.html>.
* intervals.c (adjust_intervals_for_insertion)
(adjust_intervals_for_deletion): Now extern, because otherwise the
extern inline functions 'offset_intervals' couldn't refer to it.
(static_offset_intervals): Remove.
(offset_intervals): Rewrite using the old contents of
static_offset_intervals.  The old version didn't conform to C99
because an extern inline function contained a reference to an
identifier with static linkage.

3 files changed, 36 insertions, 20 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index a134b5f4871..4074ee4e924 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,21 @@
+2011-11-06  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Fix some portability problems with 'inline'.
+        * dispextern.h (window_box, window_box_height, window_text_bottom_y)
+        (window_box_width, window_box_left, window_box_left_offset)
+        (window_box_right, window_box_right_offset): Declare extern.
+        Otherwise, these inline functions do not conform to C99 and
+        are miscompiled by Microsoft compilers.  Reported by Eli Zaretskii in
+        <http://lists.gnu.org/archive/html/emacs-devel/2011-11/msg00084.html>.
+        * intervals.c (adjust_intervals_for_insertion)
+        (adjust_intervals_for_deletion): Now extern, because otherwise the
+        extern inline functions 'offset_intervals' couldn't refer to it.
+        (static_offset_intervals): Remove.
+        (offset_intervals): Rewrite using the old contents of
+        static_offset_intervals.  The old version didn't conform to C99
+        because an extern inline function contained a reference to an
+        identifier with static linkage.
+
 2011-11-06  Andreas Schwab  <schwab@linux-m68k.org>
 
         * keyboard.c (interrupt_signal): Don't call kill-emacs while in
diff --git a/src/dispextern.h b/src/dispextern.h
index 5c60a5499da..fdc7f2f908d 100644
--- a/src/dispextern.h
+++ b/src/dispextern.h
@@ -3006,14 +3006,14 @@ int resize_mini_window (struct window *, int);
 void set_vertical_scroll_bar (struct window *);
 #endif
 int try_window (Lisp_Object, struct text_pos, int);
-void window_box (struct window *, int, int *, int *, int *, int *);
-int window_box_height (struct window *);
-int window_text_bottom_y (struct window *);
-int window_box_width (struct window *, int);
-int window_box_left (struct window *, int);
-int window_box_left_offset (struct window *, int);
-int window_box_right (struct window *, int);
-int window_box_right_offset (struct window *, int);
+extern void window_box (struct window *, int, int *, int *, int *, int *);
+extern int window_box_height (struct window *);
+extern int window_text_bottom_y (struct window *);
+extern int window_box_width (struct window *, int);
+extern int window_box_left (struct window *, int);
+extern int window_box_left_offset (struct window *, int);
+extern int window_box_right (struct window *, int);
+extern int window_box_right_offset (struct window *, int);
 int estimate_mode_line_height (struct frame *, enum face_id);
 void pixel_to_glyph_coords (struct frame *, int, int, int *, int *,
                             NativeRectangle *, int);
diff --git a/src/intervals.c b/src/intervals.c
index 1f3f8cf793e..be1bdfb9056 100644
--- a/src/intervals.c
+++ b/src/intervals.c
@@ -52,6 +52,11 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #define TMEM(sym, set) (CONSP (set) ? ! NILP (Fmemq (sym, set)) : ! NILP (set))
 
+extern INTERVAL adjust_intervals_for_insertion (INTERVAL,
+                                                EMACS_INT, EMACS_INT);
+extern void adjust_intervals_for_deletion (struct buffer *,
+                                           EMACS_INT, EMACS_INT);
+
 static Lisp_Object merge_properties_sticky (Lisp_Object, Lisp_Object);
 static INTERVAL merge_interval_right (INTERVAL);
 static INTERVAL reproduce_tree (INTERVAL, INTERVAL);
@@ -798,7 +803,7 @@ update_interval (register INTERVAL i, EMACS_INT pos)
    and check the hungry bits of both.  Then add the length going back up
    to the root.  */
 
-static INTERVAL
+INTERVAL
 adjust_intervals_for_insertion (INTERVAL tree, EMACS_INT position,
                                 EMACS_INT length)
 {
@@ -859,7 +864,7 @@ adjust_intervals_for_insertion (INTERVAL tree, EMACS_INT position,
    interval.  Another possibility would be to create a new interval for
    this text, and make it have the merged properties of both ends.  */
 
-static INTERVAL
+INTERVAL
 adjust_intervals_for_insertion (INTERVAL tree,
                                 EMACS_INT position, EMACS_INT length)
 {
@@ -1369,7 +1374,7 @@ interval_deletion_adjustment (register INTERVAL tree, register EMACS_INT from,
    text.  The deletion is effected at position START (which is a
    buffer position, i.e. origin 1).  */
 
-static void
+void
 adjust_intervals_for_deletion (struct buffer *buffer,
                                EMACS_INT start, EMACS_INT length)
 {
@@ -1425,9 +1430,8 @@ adjust_intervals_for_deletion (struct buffer *buffer,
    compiler that does not allow calling a static function (here,
    adjust_intervals_for_deletion) from a non-static inline function.  */
 
-static inline void
-static_offset_intervals (struct buffer *buffer, EMACS_INT start,
-                         EMACS_INT length)
+inline void
+offset_intervals (struct buffer *buffer, EMACS_INT start, EMACS_INT length)
 {
   if (NULL_INTERVAL_P (BUF_INTERVALS (buffer)) || length == 0)
     return;
@@ -1440,12 +1444,6 @@ static_offset_intervals (struct buffer *buffer, EMACS_INT start,
       adjust_intervals_for_deletion (buffer, start, -length);
     }
 }
-
-inline void
-offset_intervals (struct buffer *buffer, EMACS_INT start, EMACS_INT length)
-{
-  static_offset_intervals (buffer, start, length);
-}
 
 /* Merge interval I with its lexicographic successor. The resulting
    interval is returned, and has the properties of the original