-dnl From the autoconf manual
-AC_CHECK_FUNCS(syslog)
-if test $ac_cv_func_syslog = no; then
- # syslog is not in the default libraries. See if it's in some other.
- for lib in bsd socket inet; do
- AC_CHECK_LIB($lib, syslog, [AC_DEFINE(HAVE_SYSLOG)
- LIBS="$LIBS $lib"; break])
- done
-fi
-
-AC_CHECK_LIB(dl, dlopen, [
- LIBS="$LIBS -ldl"
-])
-
-
-dnl Crypto stuff
-
-libcrypto=none
-AC_CHECK_LIB(crypto, SHA1_version, [
- libcrypto=yes
-])
-
-if test $libcrypto = none; then
- AC_MSG_ERROR(It seems like OpenSSL is not installed on this system.)
-else
- LIBS="$LIBS -lcrypto"
-fi
-
-
-dnl Check for TUN/TAP support in the kernel