The directory containing this file contains various bash scripts that set-up the necessary environment variables used by the Makefiles for the dl_esm_inf library and example. Typically these are:
F90 - the Fortran compiler to use F90FLAGS - the flags to pass to the Fortran compiler OMPFLAGS - the compiler flags to use to enable OpenMP LDFLAGS - flags to pass to the linker (if any) AR - the command to use when creating an archive (.a) file from object (.o) files ARFLAGS - the flags to pass to the archiver.
The latter two are really just to support the Intel compiler since we must use Intel's xiar when doing Inter-Procedural Optimisation.