Generate Makefiles

[felixSchl]

When compiling a project, also generate a Makefile that essentially replaces this part:

https://github.com/felixSchl/purescript-c/blob/master/Makefile#L28-L35

with something dynamic.

[felixSchl]

Something like this might suffice, but the problem here are the relative paths to the purescript runtime's (and its' dependencies) object and header files.

[felixSchl]

I am thinking producing a shared object for the runtime plus self-contained header-file might be the best option. This would mean making some of the structs opaque and removing the imports of 3rd party libraries currently included in "purescript.h"?

[felixSchl]

This is sorted and can be seen in action in the examples. It assumes a source distribution of purec. Downstream tools would set the path to the checkout via PUREC_DIR and include mk/target.mk which provides a macro for generating target rules.