+#
+# lib/contrib conditionals
+#
+AC_CHECK_HEADER(regex.h, have_regex=1, have_regex=0)
+AM_CONDITIONAL(HAVE_REGEX, test x$have_regex = x1)
+AC_CHECK_FUNC(getopt_long, have_getopt_long=1, have_getopt_long=0)
+AM_CONDITIONAL(HAVE_GETOPT_LONG, test x$have_getopt_long = x1)
+