Mac OSX & anaconda install / README.md

[drf5n]

I installed it on my mac with

conda create -n pycnal numpy scipy matplotlib basemap netcdf4 ipython
conda install -c conda-forge netcdf-fortran
git clone https://github.com/ESMG/PyCNAL_legacy.git
cd PyCNAL_legacy

Then followed most of the directions on the https://github.com/ESMG/PyCNAL_legacy page, but then needed these lines in my extern/scrip/source/makefile:

...
NC_CONFIG = nc-config
LIBDIR = $(shell $(NC_CONFIG) --prefix)/lib
INCDIR = $(shell $(NC_CONFIG) --prefix)/include
SRCDIR  = .
PREFIX  = /usr/local

COMPILE = gfortran
FLAGS = -g -fdefault-real-8 -ffixed-form -O2 -fPIC
LIB  =  $(shell $(NC_CONFIG) --flibs)
LIB  =  -L${LIBDIR} -lnetcdff -lnetcdf

The extra hard-coded flags on the main page do not apply to Mac OSX.

I've not tested it yet, but the thing seemed to compile OK.