Index: src/main.c
==================================================================
--- src/main.c
+++ src/main.c
@@ -446,12 +446,12 @@
         ** run.
         */
         memset(&sqlite3GlobalConfig.m, 0, sizeof(sqlite3GlobalConfig.m));
       }else{
         /* The heap pointer is not NULL, then install one of the
-        ** mem5.c/mem3.c methods. If neither ENABLE_MEMSYS3 nor
-        ** ENABLE_MEMSYS5 is defined, return an error.
+        ** mem5.c/mem3.c methods.  The enclosing #if guarantees at
+        ** least one of these methods is currently enabled.
         */
 #ifdef SQLITE_ENABLE_MEMSYS3
         sqlite3GlobalConfig.m = *sqlite3MemGetMemsys3();
 #endif
 #ifdef SQLITE_ENABLE_MEMSYS5
@@ -466,11 +466,11 @@
       sqlite3GlobalConfig.szLookaside = va_arg(ap, int);
       sqlite3GlobalConfig.nLookaside = va_arg(ap, int);
       break;
     }
     
-    /* Record a pointer to the logger funcction and its first argument.
+    /* Record a pointer to the logger function and its first argument.
     ** The default is NULL.  Logging is disabled if the function pointer is
     ** NULL.
     */
     case SQLITE_CONFIG_LOG: {
       /* MSVC is picky about pulling func ptrs from va lists.