The Free On-line Dictionary of Computing (19 January 2023):

Mach Interface Generator
MIG

    (MIG) An implementation of a subset of
   Matchmaker that generates C and C++ remote procedure
   call interfaces for interprocess communication between
   Mach tasks.

   ["MIG - The Mach Interface Generator", R.P. Draves et al, CS
   CMU, (1989-08-4)].

   (1994-11-22)