source code conventions

[Al Stone]

In the file libc/stdio/_stdio.c on line 195, there is the line:
        
        #warning check
        
More specifically, the context around it looks like this:
        
        /* First, make sure the open file list is unlocked.  If it was
             * locked, then I suppose there is a chance that a pointer in the
             * chain might be corrupt due to a partial store.
             */
             __stdio_init_mutex(&_stdio_openlist_add_lock);
        #warning check
        #ifdef __STDIO_BUFFERS
                __stdio_init_mutex(&_stdio_openlist_del_lock);
        #endif
        
        
I'm sure the warning is trying to tell me something, to signal
some sort of intent; could someone explain what the intent is?
Is this meant to remind me to check the definition of __STDIO_BUFFERS,
or of __stdio_init_mutex()?  Both?  Or is just a note indicating I got
that far?
        
Thanks.
        
-- 
Ciao,
al
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Al Stone                                      Alter Ego:
Open Source and Linux R&D                     Debian Developer
Hewlett-Packard Company                       http://www.debian.org
E-mail: ahs3 at fc.hp.com                        ahs3 at debian.org
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