Avoid unnecessary recompilation due to -haddock #4596
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I would love to implement a regression test for this, but I am currently unsure how. |
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Due to unprincipled adding and removing the `-haddock` flag during compilation and recompilation checking, we were performing more work than necessary. We avoid this by compiling everything with `-haddock` by default. This is safe nowadays, we have essentially been doing this for many releases, and know this is fine. For the occasion where we actually want to parse without the `-haddock` flag, we keep explicitly disabling it. We enable `-haddock` flag during session loading, since we already perform a number of DynFlags tweaks. This behaviour is dependent on the `OptHaddockParse` opton, which can, currently, only be modified at compile-time.
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Due to unprincipled adding and removing the
-haddockflag during compilation and recompilation checking, we were performing more work than necessary.We avoid this by compiling everything with
-haddockby default. This is safe nowadays, we have essentially been doing this for many releases, and know this is fine.For the occasion where we actually want to parse without the
-haddockflag, we keep explicitly disabling it.We enable
-haddockflag during session loading, since we already perform a number of DynFlags tweaks.This behaviour is dependent on the
OptHaddockParseopton, which can, currently, only be modified at compile-time.Closes #4511