IO_DEBUG in libio/Makefile

[Andreas Jaeger]

Hi,

PR libc/1069 reported a problem with a call to fseek on a non-opened
filehandle.  The program worked when statically linked but fails
dynamically linked.  Jon Sherling pointed out that this results from
different definitions for CHECK_FILE in libio/libioP.h.  Only with
IO_DEBUG set (which is set for the static library), a test function is
used to check the FILE handle.

Is this really intented?  Shouldn't IO_DEBUG always be off - and
perhaps switched on only in some special debugging library ?

Andreas
-- 
 Andreas Jaeger   aj@arthur.rhein-neckar.de    jaeger@informatik.uni-kl.de
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