sudo port install mod_gnutls FAILED

[sinerzxa@…]

$ sudo port install mod_gnutls
--->  Computing dependencies for mod_gnutls
--->  Dependencies to be installed: gnutls
--->  Fetching archive for gnutls
--->  Attempting to fetch gnutls-2.12.11_1.darwin_11.x86_64.tbz2 from http://packages.macports.org/gnutls
--->  Fetching gnutls
--->  Verifying checksum(s) for gnutls
--->  Extracting gnutls
--->  Configuring gnutls
--->  Building gnutls
--->  Staging gnutls into destroot
--->  Installing gnutls @2.12.11_1
--->  Activating gnutls @2.12.11_1
--->  Cleaning gnutls
--->  Configuring mod_gnutls
Error: Target org.macports.configure returned: configure failure: shell command failed (see log for details)
Log for mod_gnutls is at: /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_www_mod_gnutls/mod_gnutls/main.log
Error: Status 1 encountered during processing.

[sinerzxa@…]

main.log