FD_SET, FD_CLR and FD_ISSET produce compiler warnings

[Sebastian Huber]

Hi,

according to POSIX we have:

void FD_CLR(int fd, fd_set *fdset);
int FD_ISSET(int fd, fd_set *fdset);
void FD_SET(int fd, fd_set *fdset);

They are implemented in newlib/libc/include/sys/types.h using macros which
produce an integer conversion warning because NFDBITS has an unsigned integer type.

Have a nice day!

-- 
Sebastian Huber, Embedded Brains GmbH

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