OSX10.7 aria2 +gnutls

[Linbox666]

--->  Fetching archive for gnutls
--->  Attempting to fetch gnutls-3.7.10_0.darwin_11.x86_64.tbz2 from http://pek.cn.packages.macports.org/macports/packages/gnutls
--->  Attempting to fetch gnutls-3.7.10_0.darwin_11.x86_64.tbz2 from http://packages.macports.org/gnutls
--->  Attempting to fetch gnutls-3.7.10_0.darwin_11.x86_64.tbz2 from http://kmq.jp.packages.macports.org/gnutls
--->  Fetching distfiles for gnutls
--->  Attempting to fetch gnutls-3.7.10.tar.xz from http://pek.cn.distfiles.macports.org/macports/distfiles/gnutls
--->  Verifying checksums for gnutls
--->  Extracting gnutls
--->  Applying patches to gnutls
--->  Configuring gnutls
Error: Failed to configure gnutls: consult /opt/local/var/macports/build/_opt_local_var_macports_sources_mirrors.tuna.tsinghua.edu.cn_macports_release_ports_devel_gnutls/gnutls/work/gnutls-3.7.10/config.log
Error: Failed to configure gnutls: configure failure: command execution failed
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_mirrors.tuna.tsinghua.edu.cn_macports_release_ports_devel_gnutls/gnutls/main.log for details.
Error: Follow https://guide.macports.org/#project.tickets if you believe there
is a bug.
Error: Processing of port aria2 failed
--->  Some of the ports you installed have notes:
  db48 has the following notes:
    The Java and Tcl bindings are now provided by the db48-java and
    db48-tcl subports.
  legacy-support has the following notes:
    To help make sure your system continues to be well represented by MacPorts,
    especially if your system is not one of the latest macOS releases, please
    consider installing mpstats. It will periodically send an anonymous synopsis
    of your OS settings and installed ports. The information provided by this is
    useful to help determine how resources are allocated.
    
    You can install mpstats like this:    sudo port install mpstats
  libomp has the following notes:
    To use this OpenMP library:
     * For clang-3.8+, or clang-3.7 with +openmp variant:
        add "-fopenmp" during compilation / linking.
     * For clang-3.7 without +openmp variant, use:
        "-I/opt/local/include/libomp -L/opt/local/lib/libomp -fopenmp"

[kencu (Ken)]

Looks like you need to do this, and then try again:

You have not agreed to the Xcode license agreements, please run 'xcodebuild -license' (for user-level acceptance) or 'sudo xcodebuild -license' (for system-wide acceptance) from within a Terminal window to review and agree to the Xcode license agreements.