the time module is garbage, because libc time handling is garbage.
the signal handling is still experimental, use at your own risk.
still need a host module for user/group and other host information.
to have an SEXP_ prefix. Now all values from the headers
are prefixed with either sexp_ or SEXP_, important for ease
of embedding. "make USE_BOEHM=1" still works as an alias
for "make SEXP_USE_BOEHM=1".
Sorry if this patch breaks your code, it had to be done
sooner or later.
