These patches fix a very long standing bug where aguments passed to utime(3) by IMAP-UW and the
c-client library were incorrect.  Unfortunately, on 32-bit systems, the the bug went unnoticed
because all the bits lined up correctly.  On 64-bit systems, this happenstance doesn't work,
meaning the mtime and atime time stamps this software modifies are completely wrong, usually
defaulting to the beginning of the epoch, but only because the random memory locations pointed
to by the incorrect pointers are  0.
Fortunately, the software package includes a portable version of the utime library call that
converts the internal usage of this function to one that's compatible with the one resident in
libc on NetBSD, FreeBSD and other BSD systems.  This patch simply enables that portable code
when compiling this package  on BSD systems while using the pkgsrc system.

These patches have been compiled and are running in production on a 64-bit NetBSD/amd64
system running NetBSD-9.2.

Fixes pkg/pr-56645

(buhrow)