Interesting discovery in the C library that Cygwin uses

[Gregg Levine <gregg dot drwho8 at gmail dot com>]

Hello!
I made this discovery whilst building the urjtag program from its SVN trunk:
make[3]: Entering directory `/usr/local/urjtag/urjtag/trunk/urjtag/src/tap'
 CC     tap.lo
 CC     register.lo
 CC     state.lo
 CC     chain.lo
 CC     detect.lo
detect.c: In function `find_record':
detect.c:89: warning: array subscript has type `char'
detect.c:96: warning: array subscript has type `char'
detect.c:107: warning: array subscript has type `char'
detect.c:125: warning: array subscript has type `char'
detect.c:134: warning: array subscript has type `char'
detect.c:150: warning: array subscript has type `char'
make[3]: *** [detect.lo] Error 1
make[3]: Leaving directory `/usr/local/urjtag/urjtag/trunk/urjtag/src/tap'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/usr/local/urjtag/urjtag/trunk/urjtag/src'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/usr/local/urjtag/urjtag/trunk/urjtag'
make: *** [all] Error 2
-- 
The fix, temporarily as it happens was to add to the configure script
this one: --disable-werror . The chap who suggested it also suggested
that I complain here. It was described as  an isspace() has an issue,
I won't use the term he used.

The code can be found at http://urjtag.sf.net as it happens.

Basically the program supporter there wants the people here for Cygwin
to, ah, fix their C library. I'm not convinced that's necessary, but
which C library is used here? And what could be fixed?
-----
Gregg C Levine gregg.drwho8@gmail.com
"This signature fought the Time Wars, time and again."

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