diff --git a/n/a.c b/n/a.c
index 4af6b74bc..8571fe4f9 100644
--- a/n/a.c
+++ b/n/a.c
@@ -526,8 +526,6 @@ u3a_calloc(size_t num_i, size_t len_i)
   c3_w* out_w = u3a_malloc(byt_i);
   memset(out_w, 0, byt_i);
 
-  fprintf(stderr,"callocing %d %d\r\n",num_i,len_i);
-
   return out_w;
 }
 
@@ -623,6 +621,9 @@ u3a_realloc2(void* lag_v, size_t old_i, size_t new_i)
 void
 u3a_free(void* tox_v)
 {
+  if (NULL == tox_v)
+    return;
+
   c3_w* tox_w = tox_v;
   c3_w  pad_w = tox_w[-1];
   c3_w* org_w = tox_w - (pad_w + 1);
diff --git a/outside/commonmark/src/config.h.in b/outside/commonmark/src/config.h.in
index 86a03d5c3..8769e041d 100644
--- a/outside/commonmark/src/config.h.in
+++ b/outside/commonmark/src/config.h.in
@@ -16,7 +16,7 @@
   #define CMARK_ATTRIBUTE(list)
 #endif
 
-#if 0
+#if 1
 #ifndef U3_ALL
 #define U3_ALL
 #define malloc(a) u3a_malloc(a)