depends gmp && depends pkgconfig && optional_depends curl '--enable-curl' \ '' \ 'fetch Certificates and CRLs via http' && optional_depends libgcrypt '--enable-gcrypt' \ '' \ 'libgcrypt plugin' && optional_depends SSL '--enable-openssl' \ '' \ 'OpenSSL crypto plugin' && optional_depends openssh '--enable-agent' \ '' \ 'ssh-agent signing plugin' && optional_depends openldap '--enable-ldap' \ '' \ 'fetch CRLs from LDAP' && optional_depends opensc '--enable-smartcard' \ '' \ 'enable smartcard support'