Compiling L-BFGS-B nonlinear optimizer for mac os x

Alec Jacobson

August 16, 2010

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Just running:

make

on the fortran source code of L-BFGS-B gave me linker errors on my mac OS X 10.6 machine:

invalid parameter driver1.o
Undefined symbols:
  "_s_wsle", referenced from:
      _subsm_ in routines.o
    ....

I fixed this by installing g77, following these instructions. Then changed the value of F77 in the makefile of L-BFGS-B:

#FC = f77
FC = g77

Then running

make

produced i386 executables and object files. Note: I'm not sure what you would need to change to produce x86_64 files, luckily for me I wanted i386 all along. Update: So the examples that g77 creates above work fine. But when I tried to call the fortran subroutines from c or cpp code I got weird errors. To solve this I switched gears and opted to use f2c/f77 and universal binaries, this so far is working much better.