Port to 32-bit --with-wide-int

Prefer symbol indexes to struct Lisp_Symbol * casted and then
widened, as the latter had trouble with GCC on Fedora 21 when
configured --with-wide-int and when used in static initializers.
* lib-src/make-docfile.c (write_globals): Define and use symbols like
iQnil (a small integer, like 0) rather than aQnil (an address
constant).
* src/alloc.c (garbage_collect_1, which_symbols):
* src/lread.c (init_obarray):
Prefer builtin_lisp_symbol when it can be used.
* src/dispextern.h (struct image_type.type):
* src/font.c (font_property_table.key):
* src/frame.c (struct frame_parm_table.sym):
* src/keyboard.c (scroll_bar_parts, struct event_head):
* src/xdisp.c (struct props.name):
Use the index of a builtin symbol rather than its address.
All uses changed.
* src/lisp.h (TAG_SYMPTR, XSYMBOL_INIT): Remove, replacing with ...
(TAG_SYMOFFSET, SYMBOL_INDEX): ... new macros that deal with
symbol indexes rather than pointers, and which work better on MSB
hosts because they shift right before tagging.  All uses changed.
(DEFINE_LISP_SYMBOL_BEGIN, DEFINE_LISP_SYMBOL_END):
No longer noops on wide-int hosts, since they work now.
(builtin_lisp_symbol): New function.

1 files changed, 41 insertions, 41 deletions

diff --git a/src/frame.c b/src/frame.c
index fb9bf2e9cbb..3d2ffbf624f 100644
--- a/src/frame.c
+++ b/src/frame.c
@@ -2925,48 +2925,48 @@ or bottommost possible position (that stays within the screen).  */)
 
 struct frame_parm_table {
   const char *name;
-  struct Lisp_Symbol *sym;
+  int sym;
 };
 
 static const struct frame_parm_table frame_parms[] =
 {
-  {"auto-raise",                XSYMBOL_INIT (Qauto_raise)},
-  {"auto-lower",                XSYMBOL_INIT (Qauto_lower)},
-  {"background-color",          0},
-  {"border-color",              XSYMBOL_INIT (Qborder_color)},
-  {"border-width",              XSYMBOL_INIT (Qborder_width)},
-  {"cursor-color",              XSYMBOL_INIT (Qcursor_color)},
-  {"cursor-type",               XSYMBOL_INIT (Qcursor_type)},
-  {"font",                      0},
-  {"foreground-color",          0},
-  {"icon-name",                 XSYMBOL_INIT (Qicon_name)},
-  {"icon-type",                 XSYMBOL_INIT (Qicon_type)},
-  {"internal-border-width",     XSYMBOL_INIT (Qinternal_border_width)},
-  {"right-divider-width",       XSYMBOL_INIT (Qright_divider_width)},
-  {"bottom-divider-width",      XSYMBOL_INIT (Qbottom_divider_width)},
-  {"menu-bar-lines",            XSYMBOL_INIT (Qmenu_bar_lines)},
-  {"mouse-color",               XSYMBOL_INIT (Qmouse_color)},
-  {"name",                      XSYMBOL_INIT (Qname)},
-  {"scroll-bar-width",          XSYMBOL_INIT (Qscroll_bar_width)},
-  {"scroll-bar-height",         XSYMBOL_INIT (Qscroll_bar_height)},
-  {"title",                     XSYMBOL_INIT (Qtitle)},
-  {"unsplittable",              XSYMBOL_INIT (Qunsplittable)},
-  {"vertical-scroll-bars",      XSYMBOL_INIT (Qvertical_scroll_bars)},
-  {"horizontal-scroll-bars",    XSYMBOL_INIT (Qhorizontal_scroll_bars)},
-  {"visibility",                XSYMBOL_INIT (Qvisibility)},
-  {"tool-bar-lines",            XSYMBOL_INIT (Qtool_bar_lines)},
-  {"scroll-bar-foreground",     XSYMBOL_INIT (Qscroll_bar_foreground)},
-  {"scroll-bar-background",     XSYMBOL_INIT (Qscroll_bar_background)},
-  {"screen-gamma",              XSYMBOL_INIT (Qscreen_gamma)},
-  {"line-spacing",              XSYMBOL_INIT (Qline_spacing)},
-  {"left-fringe",               XSYMBOL_INIT (Qleft_fringe)},
-  {"right-fringe",              XSYMBOL_INIT (Qright_fringe)},
-  {"wait-for-wm",               XSYMBOL_INIT (Qwait_for_wm)},
-  {"fullscreen",                XSYMBOL_INIT (Qfullscreen)},
-  {"font-backend",              XSYMBOL_INIT (Qfont_backend)},
-  {"alpha",                     XSYMBOL_INIT (Qalpha)},
-  {"sticky",                    XSYMBOL_INIT (Qsticky)},
-  {"tool-bar-position",         XSYMBOL_INIT (Qtool_bar_position)},
+  {"auto-raise",                SYMBOL_INDEX (Qauto_raise)},
+  {"auto-lower",                SYMBOL_INDEX (Qauto_lower)},
+  {"background-color",          -1},
+  {"border-color",              SYMBOL_INDEX (Qborder_color)},
+  {"border-width",              SYMBOL_INDEX (Qborder_width)},
+  {"cursor-color",              SYMBOL_INDEX (Qcursor_color)},
+  {"cursor-type",               SYMBOL_INDEX (Qcursor_type)},
+  {"font",                      -1},
+  {"foreground-color",          -1},
+  {"icon-name",                 SYMBOL_INDEX (Qicon_name)},
+  {"icon-type",                 SYMBOL_INDEX (Qicon_type)},
+  {"internal-border-width",     SYMBOL_INDEX (Qinternal_border_width)},
+  {"right-divider-width",       SYMBOL_INDEX (Qright_divider_width)},
+  {"bottom-divider-width",      SYMBOL_INDEX (Qbottom_divider_width)},
+  {"menu-bar-lines",            SYMBOL_INDEX (Qmenu_bar_lines)},
+  {"mouse-color",               SYMBOL_INDEX (Qmouse_color)},
+  {"name",                      SYMBOL_INDEX (Qname)},
+  {"scroll-bar-width",          SYMBOL_INDEX (Qscroll_bar_width)},
+  {"scroll-bar-height",         SYMBOL_INDEX (Qscroll_bar_height)},
+  {"title",                     SYMBOL_INDEX (Qtitle)},
+  {"unsplittable",              SYMBOL_INDEX (Qunsplittable)},
+  {"vertical-scroll-bars",      SYMBOL_INDEX (Qvertical_scroll_bars)},
+  {"horizontal-scroll-bars",    SYMBOL_INDEX (Qhorizontal_scroll_bars)},
+  {"visibility",                SYMBOL_INDEX (Qvisibility)},
+  {"tool-bar-lines",            SYMBOL_INDEX (Qtool_bar_lines)},
+  {"scroll-bar-foreground",     SYMBOL_INDEX (Qscroll_bar_foreground)},
+  {"scroll-bar-background",     SYMBOL_INDEX (Qscroll_bar_background)},
+  {"screen-gamma",              SYMBOL_INDEX (Qscreen_gamma)},
+  {"line-spacing",              SYMBOL_INDEX (Qline_spacing)},
+  {"left-fringe",               SYMBOL_INDEX (Qleft_fringe)},
+  {"right-fringe",              SYMBOL_INDEX (Qright_fringe)},
+  {"wait-for-wm",               SYMBOL_INDEX (Qwait_for_wm)},
+  {"fullscreen",                SYMBOL_INDEX (Qfullscreen)},
+  {"font-backend",              SYMBOL_INDEX (Qfont_backend)},
+  {"alpha",                     SYMBOL_INDEX (Qalpha)},
+  {"sticky",                    SYMBOL_INDEX (Qsticky)},
+  {"tool-bar-position",         SYMBOL_INDEX (Qtool_bar_position)},
 };
 
 #ifdef HAVE_WINDOW_SYSTEM
@@ -4824,9 +4824,9 @@ syms_of_frame (void)
 
     for (i = 0; i < ARRAYELTS (frame_parms); i++)
       {
-        Lisp_Object v = (frame_parms[i].sym
-                         ? make_lisp_symbol (frame_parms[i].sym)
-                         : intern_c_string (frame_parms[i].name));
+        Lisp_Object v = (frame_parms[i].sym < 0
+                         ? intern_c_string (frame_parms[i].name)
+                         : builtin_lisp_symbol (frame_parms[i].sym));
         Fput (v, Qx_frame_parameter, make_number (i));
       }
   }