[JOSS-review] add csh as dependency

[Michael Zingale]

csh/tcsh is needed to build Chombo and is usually not installed on linux systems by default – it should be listed as a dependency in the README.md

[Stella Offner]

It is possible to compile with bash. Can you be more specific about why csh is required?

[Michael Zingale]

sorry, the Chombo build scripts hardcode `#!/bin/csh`

[Michael Zingale]

actually, it might just be that we should build with

make CSHELLCMD=/bin/bash

?

I’ll test that out.

[Michael Zingale]

indeed, if I build on a system without csh/tcsh, it fails, but I can fix the build scripts by compiling as:

make CSHELLCMD="/bin/bash -c" lib

perhaps then this can be documented as an alternate to requiring a csh install?

[Stella Offner]

Thanks for identifying this issue. I have added that alternative compile option into the documentation notes for compiling Chombo.

[Stella Offner]

Documentation updated.