macos_dependencies_install.md

@@ -11,7 +11,7 @@ To download:
 ```shell
 sudo port install git
 ```
-To compile (beware, the *+vtk* and *+ python27* go with *cmake* and *vtk* respectively):
+To compile:
 ```
 port install gcc49 python27 py27-numpy swig-python cmake +gui
 ```
@@ -20,6 +20,13 @@ Then you need to set the compiler and python as the default on your system:
 sudo port select gcc mp-gcc49
 sudo port select python python27
 ```
+_Note: here 49 stands for gcc4.9, any version from gcc4.5 to gcc6 should work_
+
+Optional:
+```shell
+port install hdf5 +fortran
+```
+
 To visualize:
 ```
 port install vtk +python27