[nhc-bugs] Re: Cygwin Build Bug (Probably Affects other GNU GLIBC Builds)

Brent Fulgham writes:

For thread-safety reasons, the GNU C Library (2.2+) defines "errno" as a macro that calls a function to get the errno of the current thread. Consequently, the source file "src/runtime/Builtin/cIOExtras.c" needs to include the header file, rather than declaring an extern variable.

Thanks for the useful information. Your suggested patch is now listed on the nhc98 download page. Regards, Malcolm