SW4 make and python test

SW4 make resulted in several warnings of type:

ld: warning: could not create compact unwind for rhouttlumf registers 23 and 24 not saved contiguously in frame

and although the SW4 Lives banner shows afterwards, the python test fails with output:

./test_sw4.py
Running all tests for level o
Starting test # 1 in directory:
meshrefine with input file: refine-el-1.in
ERROR: Test refine-el-1.in:
sw4 returned non-zero exit status= 6 aborting test
run_cm= [‘mpirun’
I-no
111
‘/Users/danielbrox/Documents/SW4/sw4/optimize/sw4’,
DID YOU USE THE CORRECT SW4 EXECUTABLE? (SPECIFY DIRECTORY WITH -d OPTION)
test sW4 was unsuccessrul

suggestions on what could be going wrong?