Having the static section depend on non-static stuff

The current ini file should be legal IMO, but it is not:

__exec_suffix = {__STATIC.COMPILE_DEFINITIONS.GRID}

gridtype =1= structured, structured, unstructured

[sol]
structured == Solver1a, Solver1b
unstructured = Solver2

[__STATIC.COMPILE_DEFINITIONS]
GRID =1= G1, G2, G3
SOLVER = {sol.{gridtype}}