Basically fields corresponding to undefined macros will properly be
associated to null instead of the macro name itself.

We do it even for macros that are supposedly defined by a standard compliant
C library, so that we can cope with more exotic implementations

Virgile Prevosto authored 2 years ago and Andre Maroneze committed 1 year ago

some POSIX macros will get standard values by default and can
be customized at runtime by user, though