{ stdenv, fetchurl, ncurses, which , sslSupport ? true , imapSupport ? true , openssl ? null }: assert sslSupport -> openssl != null; stdenv.mkDerivation { name = "mutt-1.5.15"; src = fetchurl { url = ftp://ftp.mutt.org/mutt/devel/mutt-1.5.15.tar.gz; sha256 = "03fa1f45d4743cd395b634d19aebbc2c1918cf6b683e0af51076ccc79f643a9a"; }; buildInputs = [ ncurses which (if sslSupport then openssl else null) ]; configureFlags = [ "--with-mailpath=" (if sslSupport then "--with-ssl" else "--without-ssl") (if imapSupport then "--enable-imap" else "--disable-imap") ]; }