AM_CONDITIONAL([HAVE_PRLIMIT], [test $have_prlimit = yes])
## Processor type.
-case "$host_cpu" in i?86) x86=yes;; *) x86=no;; esac
+case "$host_cpu" in i?86 | x86_64) x86=yes;; *) x86=no;; esac
AM_CONDITIONAL([X86], [test $x86 = yes -a $GCC = yes])
dnl--------------------------------------------------------------------------