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fail and warnings for build configurations #393
Description
(Imported from Trac #400, reported by @dcoutts on 2008-11-08)
People expect buildable: False to fail the current configuration (rather than letting it configure and then not working at build time). But perhaps we should make that more explicit and allow a message, eg instead of:
if os(windows) buildable: Falseallow
if os(windows) fail: it doesn't work on windows because, blah blah blahAnd similarly we might want to warn users about selecting particular configurations eg:
if flag(http)
...
else
warn: no http implementation selected, only local
operations will be possible. You probably really
want some http implementation.
The semantics roughly is that it's a workable but sub-optimal configuration.
The solver should try to avoid warnings, by selecting another alternative.
Activity
sebright commentedon Feb 12, 2018
Closing in favor of #3072, which has more comments.