[Ipopt] Ipopt version 3.12.9

[Brad Bell]

I am still using the ThridParty directory, instead of coinbrew, because it works.
(Similar to how the coin optimization suite still uses autotools to install CppAD even though that 
feature has been deprecated for 10 years).
I am getting a new error with a new version of gfortran. Would it be fixed if I switched over to 
using coinbrew ?

Ipopt Version: 3.12.9
gfortan Vection: 10.1.1-1

Error Message:
  gfortran -I. -I../../../ThirdParty/Mumps -I../../../ThirdParty/Mumps/MUMPS/src 
-I../../../ThirdParty/Mumps/MUMPS/libseq -I../../../ThirdParty/Mumps/MUMPS/include -g -O0 -pipe 
-Dmetis -c ../../../ThirdParty/Mumps/MUMPS/src/dmumps_comm_buffer.F -o dmumps_comm_buffer.o
../../../ThirdParty/Mumps/MUMPS/src/dmumps_comm_buffer.F:2667:23:

  2658 |         CALL MPI_PACK( WHAT, 1, MPI_INTEGER,
       |                       2
......
  2667 |         CALL MPI_PACK( LIST_SLAVES, NSLAVES, MPI_INTEGER,
       |                       1
Error: Rank mismatch between actual argument at (1) and actual argument at (2) (scalar and rank-1)