add external references for ACE and MPC

- all external projects are tracked via git submodule
- normally the packages from your distribution should be used
- those dependencies are just for reference and distris which do not ship the
   needed package

Signed-off-by: Manuel Traut <manut@mecka.net>

1 files changed, 0 insertions, 0 deletions

diff --git a/deps/MPC b/deps/MPC
new file mode 160000
+Subproject de84e62615808af13cc81c8b963f86f7bad3057