diff --git a/libs/gib/regex.c b/libs/gib/regex.c
index 1d6e19dc4..74a16b1a2 100644
--- a/libs/gib/regex.c
+++ b/libs/gib/regex.c
@@ -2849,7 +2849,7 @@ re_set_registers (bufp, regs, num_regs, starts, ends)
     {
       bufp->regs_allocated = REGS_UNALLOCATED;
       regs->num_regs = 0;
-      regs->start = regs->end = (regoff_t) 0;
+      regs->start = regs->end = 0;
     }
 }
 
diff --git a/libs/util/cmem.c b/libs/util/cmem.c
index 1f448481c..9b13a4b6e 100644
--- a/libs/util/cmem.c
+++ b/libs/util/cmem.c
@@ -175,9 +175,9 @@ line_free (memsuper_t *super, memblock_t *block, void *mem)
 
 	for (l = &block->free_lines; *l; l = &(*l)->block_next) {
 		line = *l;
-		if (line->block_next && line->block_next < line) {
-			*(int *)0 = 0;
-		}
+//		if (line->block_next && line->block_next < line) {
+//			*(int *)0 = 0;
+//		}
 		if ((size_t) mem + size < (size_t) line) {
 			// line to be freed is below the free line
 			break;
@@ -206,10 +206,10 @@ line_free (memsuper_t *super, memblock_t *block, void *mem)
 			link_free_line (super, line);
 			return;
 		}
-		if ((size_t) mem >= (size_t) line
-			&& (size_t) mem < (size_t) line + line->size) {
-			*(int *) 0 = 0;
-		}
+//		if ((size_t) mem >= (size_t) line
+//			&& (size_t) mem < (size_t) line + line->size) {
+//			*(int *) 0 = 0;
+//		}
 		line = 0;
 	}
 	memline_t  *memline = (memline_t *) mem;
@@ -326,9 +326,9 @@ cmemalloc (memsuper_t *super, size_t size)
 static void
 unlink_block (memblock_t *block)
 {
-	if (!block->free_lines || block->free_lines->block_next) {
-		*(int *) 0 = 0;
-	}
+//	if (!block->free_lines || block->free_lines->block_next) {
+//		*(int *) 0 = 0;
+//	}
 	unlink_line (block->free_lines);
 
 	if (block->next) {
diff --git a/qw/source/cl_slist.c b/qw/source/cl_slist.c
index ded6445c8..4d5b43513 100644
--- a/qw/source/cl_slist.c
+++ b/qw/source/cl_slist.c
@@ -324,7 +324,7 @@ gettokstart (char *str, int req, char delim)
 		start++;
 	}
 	if (*start == '\0')
-		return '\0';
+		return 0;
 	while (tok < req) {					// Stop when we get to the requested
 										// token
 		if (*++start == delim) {		// Increment pointer and test
@@ -334,7 +334,7 @@ gettokstart (char *str, int req, char delim)
 			tok++;
 		}
 		if (*start == '\0') {
-			return '\0';
+			return 0;
 		}
 	}
 	return start;
diff --git a/tools/qfvis/source/qfvis.c b/tools/qfvis/source/qfvis.c
index 263e9ebb2..26164c30a 100644
--- a/tools/qfvis/source/qfvis.c
+++ b/tools/qfvis/source/qfvis.c
@@ -251,7 +251,7 @@ split_edge (const vec4f_t *points, const vec4f_t *dists,
 	mid = (vec4f_t) ((vec4i_t) _mm_and_ps (y, (__m128) x) |
 					 (vec4i_t) _mm_and_ps (mid, (__m128) ~x));
 #endif
-	if (isnan (mid[0])) *(int *) 0 = 0;
+//	if (isnan (mid[0])) *(int *) 0 = 0;
 	return mid;
 }