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| author | Andrey Mokhov <andrey.mokhov@gmail.com> | 2019-02-14 14:29:50 +0000 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2019-02-20 09:59:16 -0500 |
| commit | 1dad4fc27ea128a11ba0077f459494c2a1ca0d5c (patch) | |
| tree | c5b569c56435e699c03fca5ad08cf03cb8b21b80 /utils | |
| parent | 908b4b8659713f0b7a1704ce33c7fa30e3e0ffc3 (diff) | |
| download | haskell-1dad4fc27ea128a11ba0077f459494c2a1ca0d5c.tar.gz | |
Hadrian: Fix untracked dependencies
This is a preparation for #16295: https://ghc.haskell.org/trac/ghc/ticket/16295
This commit mostly focuses on getting rid of untracked dependencies,
which prevent Shake's new `--shared` feature from appropriately caching
build rules.
There are three different solutions to untracked dependencies:
* Track them! This is the obvious and the best approach, but in some
situations we cannot use it, for example, because a build rule creates
files whose names are not known statically and hence cannot be
specified as the rule's outputs.
* Use Shake's `produces` to record outputs dynamically, within the rule.
* Use Shake's `historyDisable` to disable caching for a particular build
rule. We currently use this approach only for `ghc-pkg` which mutates
the package database and the file `package.cache`.
These two tickets are fixed as the result:
Ticket #16271: https://ghc.haskell.org/trac/ghc/ticket/16271
Ticket #16272: https://ghc.haskell.org/trac/ghc/ticket/16272 (this one
is fixed only partially: we correctly record the dependency, but we
still copy files into the RTS build tree).
Diffstat (limited to 'utils')
| -rw-r--r-- | utils/touchy/touchy.cabal | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/utils/touchy/touchy.cabal b/utils/touchy/touchy.cabal index 377051e28b..b9195fc496 100644 --- a/utils/touchy/touchy.cabal +++ b/utils/touchy/touchy.cabal @@ -10,7 +10,7 @@ Description: XXX Category: Development build-type: Simple -Executable unlit +Executable touchy Default-Language: Haskell2010 Main-Is: touchy.c C-Sources: touchy.c |