Procházet zdrojové kódy
Do not use `[roots]` in example `[tokens]`
Use of `[roots]` in `[tokens]` is tricky, because final value of a
`[roots:foo]` will "silently" depend on DESTDIR, while DESTDIR is
only known during install time. On the other hand, `[tokens]` are used only
during build time.
In other words, YOU CANNOT RELY on the value of keys in `[roots]` to be
consistent. For example, consider root:
[roots]
foo = /bar
qux = [ENV:PREFIX]:/quux
`[roots:foo]` will be '/bar' at build time, but "$DESTDIR/bar" at
install time, and `[roots:qux]` will be "$PREFIX/quux" at build time,
but "$DESTDIR/$PREFIX/quux" at install time.
Just about only case when you might want to use it is mentioning it in
a document, when you want the value to be rather "standard" than
"correct", while you still want to respect PREFIX.
So let's not lead new users directly into that rabbit hole.