Silence -Wdangling-pointer warnings from gcc >= 12:

Those local vars do _not_ actually go out of scope.

../h2shared/d_sprite.c: In function 'D_DrawSprite':
../h2shared/d_sprite.c:706:22: warning: storing the address of local variable 'spans' in 'sprite_spans' [-Wdangling-pointer=]
  706 |         sprite_spans = spans;
      |         ~~~~~~~~~~~~~^~~~~~~
../h2shared/d_sprite.c:704:25: note: 'spans' declared here
  704 |         sspan_t         spans[MAXHEIGHT+1];
      |                         ^~~~~
../h2shared/d_sprite.c:29:18: note: 'sprite_spans' declared here
   29 | static sspan_t  *sprite_spans;
      |                  ^~~~~~~~~~~~

../h2shared/r_draw.c: In function 'R_RenderBmodelFace':
../h2shared/r_draw.c:609:17: warning: storing the address of local variable 'tedge' in 'r_pedge' [-Wdangling-pointer=]
  609 |         r_pedge = &tedge;
      |         ~~~~~~~~^~~~~~~~
../h2shared/r_draw.c:589:25: note: 'tedge' declared here
  589 |         medge_t         tedge;
      |                         ^~~~~
../h2shared/r_draw.c:48:18: note: 'r_pedge' declared here
   48 | medge_t         *r_pedge;
      |                  ^~~~~~~

r_main.c: In function 'R_DrawViewModel':
r_main.c:843:34: warning: storing the address of local variable 'lightvec' in 'r_viewlighting.plightvec' [-Wdangling-pointer=]
  843 |         r_viewlighting.plightvec = lightvec;
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~
r_main.c:779:25: note: 'lightvec' declared here
  779 |         float           lightvec[3] = {-1, 0, 0};
      |                         ^~~~~~~~
r_main.c:28:17: note: 'r_viewlighting' declared here
   28 | static alight_t r_viewlighting = {128, 192, viewlightvec};
      |                 ^~~~~~~~~~~~~~

engine/h2shared/d_sprite.c

@@ -766,4 +766,6 @@ void D_DrawSprite (void)
 		D_SpriteDrawSpansT2 (sprite_spans);
 	else
 		D_SpriteDrawSpans (sprite_spans);
+
+	sprite_spans = NULL; /* silence -Wdangling-pointer warnings */
 }

engine/h2shared/r_draw.c

@@ -541,6 +541,7 @@ void R_RenderFace (msurface_t *fa, int clipflags)
 	}
 
 // if no edges made it out, return without posting the surface
+	r_pedge = NULL; /* silence -Wdangling-pointer warnings */
 	if (!r_emitted)
 		return;
 
@@ -658,6 +659,7 @@ void R_RenderBmodelFace (bedge_t *pedges, msurface_t *psurf)
 	}
 
 // if no edges made it out, return without posting the surface
+	r_pedge = NULL; /* silence -Wdangling-pointer warnings */
 	if (!r_emitted)
 		return;
 

engine/hexen2/r_main.c

@@ -860,6 +860,8 @@ static void R_DrawViewModel (void)
 
 	if (r_fov_greater_than_90)
 		SCR_CalcFOV(scr_fov.value);
+
+	r_viewlighting.plightvec = NULL; /* silence -Wdangling-pointer warnings */
 }
 
 

engine/hexenworld/client/r_main.c

@@ -886,6 +886,8 @@ static void R_DrawViewModel (void)
 
 	if (r_fov_greater_than_90)
 		SCR_CalcFOV(scr_fov.value);
+
+	r_viewlighting.plightvec = NULL; /* silence -Wdangling-pointer warnings */
 }
 
 
@@ -1268,6 +1270,11 @@ static void R_EdgeDrawing (qboolean Translucent)
 }
 
 
+/*
+=============
+R_DrawName
+=============
+*/
 void R_DrawName (vec3_t origin, const char *name, int siegestatus)
 {
 	vec3_t	local, transformed;