Re: AC_*/AM_* macros for options

[Paul Smith]

On Wed, 2013-10-30 at 05:36 -0400, Jeffrey Walton wrote:
> First, time_t is supposed to be an integer or real
> (http://pubs.opengroup.org/onlinepubs/009696699/basedefs/sys/types.h.html).
> Its hard to blame the compiler's warning system for a broken
> implementation.

The ISO C standard does not require that time_t be signed, so while it
may not be strictly POSIX compliant, an implementation that provides
unsigned time_t is not broken from the perspective of a C compiler.