If msg size==0, disable POSIX msg queues

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2380 42af7a65-404d-4744-a932-0658087f49c3

tools/mkconfig.c

@@ -288,6 +288,12 @@ int main(int argc, char **argv, char **envp)
   printf("# undef CONFIG_STDIO_BUFFER_SIZE\n");
   printf("# define CONFIG_STDIO_BUFFER_SIZE 0\n");
   printf("#endif\n\n");
+  printf("/* If the maximum message size is zero, then we assume that message queues\n");
+  printf(" * support should be disabled\n");
+  printf(" */\n\n");
+  printf("#if CONFIG_MQ_MAXMSGSIZE <= 0 && !defined(CONFIG_DISABLE_MQUEUE)\n");
+  printf("# define CONFIG_DISABLE_MQUEUE 1\n");
+  printf("#endif\n\n");
   printf("/* If mountpoint support in not included, then no filesystem can be supported */\n\n");
   printf("#ifdef CONFIG_DISABLE_MOUNTPOINT\n");
   printf("# undef CONFIG_FS_FAT\n");