ALLOW_CXXFLAGS_OVERWRITE¶
Setting this option will allow you to overload preprocessor definitions from
the command line, as it was possible naturally with the autotools build system.
This feature only works with a Unix Makefiles
based generator. You can
use it as:
make CXXFLAGS="your flags" GRIDTYPE="grid type"
GRIDTYPE
can be anything defined in config.h
via the dune_define_gridtype macro from dune-grid.
Furthermore any CPP variable of the form -DVAR=VALUE
can be overloaded on the command line.
Note
If you don’t know what this is or what it’s good for, don’t use it.