11 files changed, 84 insertions, 129 deletions

diff --git a/src/alloc.c b/src/alloc.c
index f8908c91dba..55c30847bbf 100644
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -3160,26 +3160,26 @@ cleanup_vector (struct Lisp_Vector *vector)
       module_finalize_function (function);
     }
 #endif
-  else if (NATIVE_COMP_FLAG
-           && PSEUDOVECTOR_TYPEP (&vector->header, PVEC_NATIVE_COMP_UNIT))
+#ifdef HAVE_NATIVE_COMP
+  else if (PSEUDOVECTOR_TYPEP (&vector->header, PVEC_NATIVE_COMP_UNIT))
     {
       struct Lisp_Native_Comp_Unit *cu =
         PSEUDOVEC_STRUCT (vector, Lisp_Native_Comp_Unit);
       unload_comp_unit (cu);
     }
-  else if (NATIVE_COMP_FLAG
-           && PSEUDOVECTOR_TYPEP (&vector->header, PVEC_SUBR))
+  else if (PSEUDOVECTOR_TYPEP (&vector->header, PVEC_SUBR))
     {
       struct Lisp_Subr *subr =
         PSEUDOVEC_STRUCT (vector, Lisp_Subr);
-      if (!NILP (subr->native_comp_u[0]))
+      if (!NILP (subr->native_comp_u))
         {
           /* FIXME Alternative and non invasive solution to this
              cast?  */
           xfree ((char *)subr->symbol_name);
-          xfree (subr->native_c_name[0]);
+          xfree (subr->native_c_name);
         }
     }
+#endif
 }
 
 /* Reclaim space used by unmarked vectors.  */
@@ -6785,15 +6785,17 @@ mark_object (Lisp_Object arg)
             break;
 
           case PVEC_SUBR:
+#ifdef HAVE_NATIVE_COMP
             if (SUBR_NATIVE_COMPILEDP (obj))
               {
                 set_vector_marked (ptr);
                 struct Lisp_Subr *subr = XSUBR (obj);
                 mark_object (subr->native_intspec);
-                mark_object (subr->native_comp_u[0]);
-                mark_object (subr->lambda_list[0]);
-                mark_object (subr->type[0]);
+                mark_object (subr->native_comp_u);
+                mark_object (subr->lambda_list);
+                mark_object (subr->type);
               }
+#endif
             break;
 
           case PVEC_FREE:
diff --git a/src/comp.c b/src/comp.c
index 7bb160e4f0a..fb9b1a5a2d8 100644
--- a/src/comp.c
+++ b/src/comp.c
@@ -5136,21 +5136,29 @@ make_subr (Lisp_Object symbol_name, Lisp_Object minarg, Lisp_Object maxarg,
   if (CONSP (minarg))
     {
       /* Dynamic code.  */
-      x->s.lambda_list[0] = maxarg;
+#ifdef HAVE_NATIVE_COMP
+      x->s.lambda_list = maxarg;
+#endif
       maxarg = XCDR (minarg);
       minarg = XCAR (minarg);
     }
   else
-    x->s.lambda_list[0] = Qnil;
+    {
+#ifdef HAVE_NATIVE_COMP
+      x->s.lambda_list = Qnil;
+#endif
+    }
   x->s.function.a0 = func;
   x->s.min_args = XFIXNUM (minarg);
   x->s.max_args = FIXNUMP (maxarg) ? XFIXNUM (maxarg) : MANY;
   x->s.symbol_name = xstrdup (SSDATA (symbol_name));
   x->s.native_intspec = intspec;
   x->s.doc = XFIXNUM (doc_idx);
-  x->s.native_comp_u[0] = comp_u;
-  x->s.native_c_name[0] = xstrdup (SSDATA (c_name));
-  x->s.type[0] = type;
+#ifdef HAVE_NATIVE_COMP
+  x->s.native_comp_u = comp_u;
+  x->s.native_c_name = xstrdup (SSDATA (c_name));
+  x->s.type = type;
+#endif
   Lisp_Object tem;
   XSETSUBR (tem, &x->s);
 
diff --git a/src/comp.h b/src/comp.h
index c4af4193d0b..96bb52a14bc 100644
--- a/src/comp.h
+++ b/src/comp.h
@@ -20,16 +20,6 @@ along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 #ifndef COMP_H
 #define COMP_H
 
-/* To keep ifdefs under control.  */
-enum {
-  NATIVE_COMP_FLAG =
-#ifdef HAVE_NATIVE_COMP
-  1
-#else
-  0
-#endif
-};
-
 #include <dynlib.h>
 
 struct Lisp_Native_Comp_Unit
diff --git a/src/data.c b/src/data.c
index 0d3376f0903..b2c395831ae 100644
--- a/src/data.c
+++ b/src/data.c
@@ -891,9 +891,11 @@ function or t otherwise.  */)
 {
   CHECK_SUBR (subr);
 
-  return SUBR_NATIVE_COMPILED_DYNP (subr)
-    ? XSUBR (subr)->lambda_list[0]
-    : Qt;
+#ifdef HAVE_NATIVE_COMP
+  if (SUBR_NATIVE_COMPILED_DYNP (subr))
+    return XSUBR (subr)->lambda_list;
+#endif
+  return Qt;
 }
 
 DEFUN ("subr-type", Fsubr_type,
@@ -917,7 +919,7 @@ DEFUN ("subr-native-comp-unit", Fsubr_native_comp_unit,
   (Lisp_Object subr)
 {
   CHECK_SUBR (subr);
-  return XSUBR (subr)->native_comp_u[0];
+  return XSUBR (subr)->native_comp_u;
 }
 
 DEFUN ("native-comp-unit-file", Fnative_comp_unit_file,
diff --git a/src/eval.c b/src/eval.c
index 94ad0607732..fe29564aa2d 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -220,17 +220,14 @@ void
 init_eval_once (void)
 {
   /* Don't forget to update docs (lispref node "Local Variables").  */
-  if (!NATIVE_COMP_FLAG)
-    {
-      max_specpdl_size = 1800; /* See bug#46818.  */
-      max_lisp_eval_depth = 800;
-    }
-  else
-    {
-      /* Original values increased for comp.el.  */
-      max_specpdl_size = 2500;
-      max_lisp_eval_depth = 1600;
-    }
+#ifndef HAVE_NATIVE_COMP
+  max_specpdl_size = 1800; /* See bug#46818.  */
+  max_lisp_eval_depth = 800;
+#else
+  /* Original values increased for comp.el.  */
+  max_specpdl_size = 2500;
+  max_lisp_eval_depth = 1600;
+#endif
   Vrun_hooks = Qnil;
   pdumper_do_now_and_after_load (init_eval_once_for_pdumper);
 }
@@ -3278,11 +3275,13 @@ funcall_lambda (Lisp_Object fun, ptrdiff_t nargs,
   else if (MODULE_FUNCTIONP (fun))
     return funcall_module (fun, nargs, arg_vector);
 #endif
+#ifdef HAVE_NATIVE_COMP
   else if (SUBR_NATIVE_COMPILED_DYNP (fun))
     {
-      syms_left = XSUBR (fun)->lambda_list[0];
+      syms_left = XSUBR (fun)->lambda_list;
       lexenv = Qnil;
     }
+#endif
   else
     emacs_abort ();
 
diff --git a/src/fileio.c b/src/fileio.c
index 859b30564aa..12ece586b83 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -2386,7 +2386,9 @@ permissions.  */)
 
   if (!NILP (keep_time))
     {
-      struct timespec ts[] = { get_stat_atime (&st), get_stat_mtime (&st) };
+      struct timespec ts[2];
+      ts[0] = get_stat_atime (&st);
+      ts[1] = get_stat_mtime (&st);
       if (futimens (ofd, ts) != 0)
         xsignal2 (Qfile_date_error,
                   build_string ("Cannot set file date"), newname);
diff --git a/src/lisp.h b/src/lisp.h
index 19caba40014..242156bbcb8 100644
--- a/src/lisp.h
+++ b/src/lisp.h
@@ -2091,10 +2091,12 @@ struct Lisp_Subr
       Lisp_Object native_intspec;
     };
     EMACS_INT doc;
-    Lisp_Object native_comp_u[NATIVE_COMP_FLAG];
-    char *native_c_name[NATIVE_COMP_FLAG];
-    Lisp_Object lambda_list[NATIVE_COMP_FLAG];
-    Lisp_Object type[NATIVE_COMP_FLAG];
+#ifdef HAVE_NATIVE_COMP
+    Lisp_Object native_comp_u;
+    char *native_c_name;
+    Lisp_Object lambda_list;
+    Lisp_Object type;
+#endif
   } GCALIGNED_STRUCT;
 union Aligned_Lisp_Subr
   {
@@ -4786,19 +4788,19 @@ extern char *emacs_root_dir (void);
 INLINE bool
 SUBR_NATIVE_COMPILEDP (Lisp_Object a)
 {
-  return SUBRP (a) && !NILP (XSUBR (a)->native_comp_u[0]);
+  return SUBRP (a) && !NILP (XSUBR (a)->native_comp_u);
 }
 
 INLINE bool
 SUBR_NATIVE_COMPILED_DYNP (Lisp_Object a)
 {
-  return SUBR_NATIVE_COMPILEDP (a) && !NILP (XSUBR (a)->lambda_list[0]);
+  return SUBR_NATIVE_COMPILEDP (a) && !NILP (XSUBR (a)->lambda_list);
 }
 
 INLINE Lisp_Object
 SUBR_TYPE (Lisp_Object a)
 {
-  return XSUBR (a)->type[0];
+  return XSUBR (a)->type;
 }
 
 INLINE struct Lisp_Native_Comp_Unit *
diff --git a/src/lread.c b/src/lread.c
index 2e63ec48912..5a2f1bc54e5 100644
--- a/src/lread.c
+++ b/src/lread.c
@@ -1279,7 +1279,10 @@ Return t if the file exists and loads successfully.  */)
               || suffix_p (file, MODULES_SECONDARY_SUFFIX)
 #endif
 #endif
-              || (NATIVE_COMP_FLAG && suffix_p (file, NATIVE_ELISP_SUFFIX)))
+#ifdef HAVE_NATIVE_COMP
+              || suffix_p (file, NATIVE_ELISP_SUFFIX)
+#endif
+              )
             must_suffix = Qnil;
           /* Don't insist on adding a suffix
              if the argument includes a directory name.  */
@@ -1359,8 +1362,11 @@ Return t if the file exists and loads successfully.  */)
   bool is_module = false;
 #endif
 
-  bool is_native_elisp =
-    NATIVE_COMP_FLAG && suffix_p (found, NATIVE_ELISP_SUFFIX) ? true : false;
+#ifdef HAVE_NATIVE_COMP
+  bool is_native_elisp = suffix_p (found, NATIVE_ELISP_SUFFIX);
+#else
+  bool is_native_elisp = false;
+#endif
 
   /* Check if we're stuck in a recursive load cycle.
 
diff --git a/src/pdumper.c b/src/pdumper.c
index 9eff5c48d09..02956aa7cec 100644
--- a/src/pdumper.c
+++ b/src/pdumper.c
@@ -2860,13 +2860,18 @@ dump_subr (struct dump_context *ctx, const struct Lisp_Subr *subr)
   struct Lisp_Subr out;
   dump_object_start (ctx, &out, sizeof (out));
   DUMP_FIELD_COPY (&out, subr, header.size);
-  if (NATIVE_COMP_FLAG && !NILP (subr->native_comp_u[0]))
+#ifdef HAVE_NATIVE_COMP
+  bool native_comp = !NILP (subr->native_comp_u);
+#else
+  bool native_comp = false;
+#endif
+  if (native_comp)
     out.function.a0 = NULL;
   else
     dump_field_emacs_ptr (ctx, &out, subr, &subr->function.a0);
   DUMP_FIELD_COPY (&out, subr, min_args);
   DUMP_FIELD_COPY (&out, subr, max_args);
-  if (NATIVE_COMP_FLAG && !NILP (subr->native_comp_u[0]))
+  if (native_comp)
     {
       dump_field_fixup_later (ctx, &out, subr, &subr->symbol_name);
       dump_remember_cold_op (ctx,
@@ -2880,19 +2885,16 @@ dump_subr (struct dump_context *ctx, const struct Lisp_Subr *subr)
       dump_field_emacs_ptr (ctx, &out, subr, &subr->intspec);
     }
   DUMP_FIELD_COPY (&out, subr, doc);
-  if (NATIVE_COMP_FLAG)
-    {
-      dump_field_lv (ctx, &out, subr, &subr->native_comp_u[0], WEIGHT_NORMAL);
-      if (!NILP (subr->native_comp_u[0]))
-        dump_field_fixup_later (ctx, &out, subr, &subr->native_c_name[0]);
+#ifdef HAVE_NATIVE_COMP
+  dump_field_lv (ctx, &out, subr, &subr->native_comp_u, WEIGHT_NORMAL);
+  if (!NILP (subr->native_comp_u))
+    dump_field_fixup_later (ctx, &out, subr, &subr->native_c_name);
 
-      dump_field_lv (ctx, &out, subr, &subr->lambda_list[0], WEIGHT_NORMAL);
-      dump_field_lv (ctx, &out, subr, &subr->type[0], WEIGHT_NORMAL);
-    }
+  dump_field_lv (ctx, &out, subr, &subr->lambda_list, WEIGHT_NORMAL);
+  dump_field_lv (ctx, &out, subr, &subr->type, WEIGHT_NORMAL);
+#endif
   dump_off subr_off = dump_object_finish (ctx, &out, sizeof (out));
-  if (NATIVE_COMP_FLAG
-      && ctx->flags.dump_object_contents
-      && !NILP (subr->native_comp_u[0]))
+  if (native_comp && ctx->flags.dump_object_contents)
     /* We'll do the final addr relocation during VERY_LATE_RELOCS time
        after the compilation units has been loaded. */
     dump_push (&ctx->dump_relocs[VERY_LATE_RELOCS],
@@ -3422,9 +3424,9 @@ dump_cold_native_subr (struct dump_context *ctx, Lisp_Object subr)
 
   dump_remember_fixup_ptr_raw
     (ctx,
-     subr_offset + dump_offsetof (struct Lisp_Subr, native_c_name[0]),
+     subr_offset + dump_offsetof (struct Lisp_Subr, native_c_name),
      ctx->offset);
-  const char *c_name = XSUBR (subr)->native_c_name[0];
+  const char *c_name = XSUBR (subr)->native_c_name;
   dump_write (ctx, c_name, 1 + strlen (c_name));
 }
 #endif
@@ -5361,20 +5363,16 @@ dump_do_dump_relocation (const uintptr_t dump_base,
       }
     case RELOC_NATIVE_SUBR:
       {
-        if (!NATIVE_COMP_FLAG)
-          /* This cannot happen.  */
-          emacs_abort ();
-
         /* When resurrecting from a dump given non all the original
            native compiled subrs may be still around we can't rely on
            a 'top_level_run' mechanism, we revive them one-by-one
            here.  */
         struct Lisp_Subr *subr = dump_ptr (dump_base, reloc_offset);
         struct Lisp_Native_Comp_Unit *comp_u =
-          XNATIVE_COMP_UNIT (subr->native_comp_u[0]);
+          XNATIVE_COMP_UNIT (subr->native_comp_u);
         if (!comp_u->handle)
           error ("NULL handle in compilation unit %s", SSDATA (comp_u->file));
-        const char *c_name = subr->native_c_name[0];
+        const char *c_name = subr->native_c_name;
         eassert (c_name);
         void *func = dynlib_sym (comp_u->handle, c_name);
         if (!func)
diff --git a/src/xdisp.c b/src/xdisp.c
index 80c8457795d..9f93799783d 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -28812,21 +28812,6 @@ normal_char_height (struct font *font, int c)
   return ascent + descent;
 }
 
-/* Return the "standard" pixel width of a character from FACE's font,
-   if the font is fixed-pitch, zero otherwise.  */
-static int
-get_normal_width (struct face *face)
-{
-  struct font *ascii_font = face->ascii_face->font;
-  /* Heuristics: fixed-pitch fonts have the value of MAX-WIDTH not
-     much larger than AVERAGE-WIDTH. */
-  bool fixed_pitch =
-    ascii_font->average_width == ascii_font->space_width
-    && ascii_font->average_width != 0
-    && ascii_font->max_width < 3 * ascii_font->average_width;
-  return fixed_pitch ? ascii_font->space_width : 0;
-}
-
 /* EXPORT for RIF:
    Set *LEFT and *RIGHT to the left and right overhang of GLYPH on
    frame F.  Overhangs of glyphs other than type CHAR_GLYPH are
@@ -30924,17 +30909,6 @@ gui_produce_glyphs (struct it *it)
               it->phys_ascent = pcm->ascent + boff;
               it->phys_descent = pcm->descent - boff;
               it->pixel_width = pcm->width;
-              if (align_columns_display)
-                {
-                  int unit_width = get_normal_width (face);
-                  if (unit_width > 0)
-                    {
-                      int ncolumns =
-                        (it->pixel_width - 1 + unit_width) / unit_width;
-
-                      it->pixel_width = ncolumns * unit_width;
-                    }
-                }
               /* Don't use font-global values for ascent and descent
                  if they result in an exceedingly large line height.  */
               if (it->override_ascent < 0)
@@ -31512,17 +31486,6 @@ gui_produce_glyphs (struct it *it)
         it->glyph_row->contains_overlapping_glyphs_p = true;
 
       it->pixel_width = cmp->pixel_width;
-      if (align_columns_display)
-        {
-          int unit_width = get_normal_width (face);
-          if (unit_width > 0)
-            {
-              int ncolumns =
-                (it->pixel_width - 1 + unit_width) / unit_width;
-
-              it->pixel_width = ncolumns * unit_width;
-            }
-        }
       it->ascent = it->phys_ascent = cmp->ascent;
       it->descent = it->phys_descent = cmp->descent;
       IT_APPLY_FACE_BOX(it, face);
@@ -31568,17 +31531,6 @@ gui_produce_glyphs (struct it *it)
             it->glyph_row->contains_overlapping_glyphs_p = true;
           it->ascent = it->phys_ascent = metrics.ascent;
           it->descent = it->phys_descent = metrics.descent;
-          if (align_columns_display)
-            {
-              int unit_width = get_normal_width (face);
-              if (unit_width > 0)
-                {
-                  int ncolumns =
-                    (it->pixel_width - 1 + unit_width) / unit_width;
-
-                  it->pixel_width = ncolumns * unit_width;
-                }
-            }
         }
       IT_APPLY_FACE_BOX(it, face);
 
@@ -35655,15 +35607,6 @@ variable are ignored and the default 0.25 is used instead.  */);
 Value is a number or a cons (WIDTH-DPI . HEIGHT-DPI).  */);
   Vdisplay_pixels_per_inch = make_float (72.0);
 
-  DEFVAR_BOOL ("align-columns-display", align_columns_display,
-    doc: /* Whether to align columns on GUI frames.
-If this is non-nil characters displayed on GUI frames will be
-aligned to produce straight columns.  This is achieved by
-enlarging the pixel width of characters to an integral
-multiple of pixels taken by ASCII characters of the same face.
-This affects only fixed-pitch fonts.  */);
-    align_columns_display = false;
-
 #ifdef GLYPH_DEBUG
   DEFVAR_INT ("debug-end-pos", debug_end_pos, doc: /* Don't ask.  */);
 #endif
diff --git a/src/xwidget.c b/src/xwidget.c
index a5b96d01100..9b9f364ce40 100644
--- a/src/xwidget.c
+++ b/src/xwidget.c
@@ -1098,6 +1098,9 @@ xwidget_scroll (struct xwidget_view *view, double x, double y,
   xg_event->scroll.delta_y = dy;
   xg_event->scroll.device = find_suitable_pointer (view->frame);
 
+  if (!(fabs (dx) > 0) || !(fabs (dy) > 0))
+    xg_event->scroll.is_stop = TRUE;
+
   g_object_ref (xg_event->any.window);
 
   gtk_main_do_event (xg_event);