<!ENTITY url.boost.getting.started "http://www.boost.org/more/getting_started.html">
<!ENTITY url.boost.compilers.status "http://www.boost.org/status/compiler_status.html">
<!ENTITY url.openssl "http://www.openssl.org">
+<!ENTITY url.libgcrypt "http://www.gnu.org/software/libgcrypt/">
<!ENTITY url.gnutls "http://www.gnu.org/software/gnutls/">
<!ENTITY url.gitwindows "http://msysgit.github.io/">
<!ENTITY url.tcpwrapper "http://ftp.porcupine.org/pub/security/index.html">