tree a1b83978d56703fcfd8c7b5bddd2ece769f12264
parent bef60b46d2ea66e1700509222fa9a218f8502fe1
author Geoffrey Martin-Noble <gcmn@google.com> 1631291127 -0700
committer GitHub <noreply@github.com> 1631291127 -0700
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Restore -Wunused to CMake build and add dev mode to disable (#7004)

Avoiding unused variables is good for committed code and really annoying
as a build error when doing interactive builds. We let users distinguish
between these two situations with the `IREE_DEV_MODE` option. The CI
will enforce the strictest options.

Includes fixing `iree_select_compiler_opts` to actually append to the
variable it's given (as the documentation says) rather than overwriting
it.