{ stdenv, fetchurl, apr, expat , sslSupport ? true, openssl , bdbSupport ? false, db4 , ldapSupport ? true, openldap }: assert sslSupport -> openssl != null; assert bdbSupport -> db4 != null; assert ldapSupport -> openldap != null; stdenv.mkDerivation rec { name = "apr-util-1.5.1"; src = fetchurl { url = "mirror://apache/apr/${name}.tar.bz2"; md5 = "9c1db8606e520f201c451ec9a0b095f6"; }; configureFlags = '' --with-apr=${apr} --with-expat=${expat} --with-crypto ${stdenv.lib.optionalString sslSupport "--with-openssl=${openssl}"} ${stdenv.lib.optionalString bdbSupport "--with-berkeley-db=${db4}"} ${stdenv.lib.optionalString ldapSupport "--with-ldap"} ''; propagatedBuildInputs = stdenv.lib.optional ldapSupport openldap; enableParallelBuilding = true; passthru = { inherit sslSupport bdbSupport ldapSupport; }; meta = { homepage = http://apr.apache.org/; description = "A companion library to APR, the Apache Portable Runtime"; }; }