./configure --enable-monolithic --disable-shared --enable-static \
--disable-defaults \
--enable-openssl --enable-kernel-libipsec --enable-kernel-pfroute \
- --enable-eap-mschapv2 --enable-eap-identity --enable-nonce \
+ --enable-eap-mschapv2 --enable-eap-identity --enable-eap-md5 \
--enable-pkcs1 --enable-socket-default --enable-osx-attr \
--enable-xauth-generic --enable-gcm --enable-ccm --enable-ctr \
- --enable-keychain --enable-charon \
+ --enable-keychain --enable-nonce --enable-charon \
--enable-ikev1 --enable-ikev2
followed by calling make (no need to make install).