Fix problems with 32-bit wide-int build exposed by MinGW

 lisp.h (XPNTR): Move definition to after XTYPE, to avoid
 compilation error in an unoptimized build when !USE_LSB_TAG.
 src/w32heap.c (DUMPED_HEAP_SIZE): For 32-bit wide-int build, use the
 same larger value as for the 64-bit build.
 src/w32term.h (SCROLL_BAR_PACK): Cast the result to UINT_PTR to
 avoid compiler warnings.
 src/w32proc.c (Fw32_get_codepage_charset, Fw32_set_keyboard_layout):
 Avoid compiler warnings about cast from integer to pointer of
 different size.
 src/w32menu.c (menubar_selection_callback, w32_menu_show): Cast to
 UINT_PTR instead of EMACS_INT, to avoid compiler warnings about
 casting from integer to pointer of different size.
 (add_menu_item): Pass the help-echo string as a pointer to
 Lisp_String, not as a Lisp_Object.
 (w32_menu_display_help): Use make_lisp_ptr to reconstruct a Lisp
 string object from its C pointer.
 src/w32fns.c (w32_msg_pump) <WM_EMACS_UNREGISTER_HOT_KEY>: Use
 make_lisp_ptr instead of XIL, to reconstruct a Lisp_Cons from its
 C pointer.
 <WM_EMACS_TOGGLE_LOCK_KEY>: msg.lparam is now a C integer.
 (Fx_create_frame): Type-cast the result of XFASTINT to avoild
 compiler warnings about size differences.
 (Fw32_unregister_hot_key): Pass the tail of w32_grabbed_keys as a
 pointer to a Lisp_Cons struct, not as a disguised EMACS_INT.
 (Fw32_toggle_lock_key): Pass the new state of the key as a C
 integer; use -1 for nil.  Doc fix.
 src/.gdbinit (xgetsym): New subroutine.
 (xsymname, xsymbol): Use it.
 (xprintsym): No need to call xgetptr.

1 files changed, 12 insertions, 9 deletions

diff --git a/src/.gdbinit b/src/.gdbinit
index 1a2a973e694..91beaef8d73 100644
--- a/src/.gdbinit
+++ b/src/.gdbinit
@@ -70,14 +70,18 @@ define xgettype
   set $type = (enum Lisp_Type) (USE_LSB_TAG ? $bugfix & (1 << GCTYPEBITS) - 1 : (EMACS_UINT) $bugfix >> VALBITS)
 end
 
+define xgetsym
+  xgetptr $arg0
+  if (!USE_LSB_TAG)
+    set $ptr = ($ptr << GCTYPEBITS)
+  end
+  set $ptr = ((struct Lisp_Symbol *) ((char *)lispsym + $ptr))
+end
+
 # Access the name of a symbol
 define xsymname
-  if (CHECK_LISP_OBJECT_TYPE)
-    set $bugfix = $arg0.i
-  else
-    set $bugfix = $arg0
-  end
-  set $symname = ((struct Lisp_Symbol *) ((char *)lispsym + $bugfix))->name
+  xgetsym $arg0
+  set $symname = $ptr->name
 end
 
 # Set up something to print out s-expressions.
@@ -760,7 +764,7 @@ end
 
 define xsymbol
   set $sym = $
-  xgetptr $sym
+  xgetsym $sym
   print (struct Lisp_Symbol *) $ptr
   xprintsym $sym
   echo \n
@@ -1082,8 +1086,7 @@ define xprintstr
 end
 
 define xprintsym
-  xgetptr $arg0
-  xsymname $ptr
+  xsymname $arg0
   xgetptr $symname
   set $sym_name = (struct Lisp_String *) $ptr
   xprintstr $sym_name