Here is the source code needed to run the FORTRAN versions of the lmder and lmdif test routines:
To compile the lmder test I used:
f77 -g -o test.lmder test.lmder.f lmder1.all.fRunning test.lmder then produces a results file called lmder.res. To compile the lmdif test I used:
f77 -g -o test.lmdif test.lmdif.f lmdif1.all.fRunning test.lmdif then produces a results file called lmdif.res.