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Hadrian's `--configure` support has long been a point of contention.
While it's convenient, it also introduces a fair bit of implementation
complexity and quite a few non-trivial failure modes
(see #19804, 17883, and #15948). Moreover, the feature is actively
misleading to the user: `./configure` is the primary means for the user
to inform the build system about the system environment and in general
will require input from the user.
This commits removes the feature, replacing the flag with a stub
message informing the user of the deprecation.
Closes #20167.
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This resolves #16809 (https://gitlab.haskell.org/ghc/ghc/issues/16809).
This patch removes the unnecessary dependency on configure-generated
flags `windowsHost`, `osxHost` and `iosHost`, using the information
provided by the module `System.Info` instead.
We also take care to use the `CrossCompiling` flag generated by the
configure script only after the latter had a chance to run.
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This allows it to eventually become stage-specific
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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).
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git-subtree-dir: hadrian
git-subtree-mainline: 575b35f4cdc18045bccd42d341d6f25d95c0696c
git-subtree-split: 45f3bff7016a2a0cd9a5455a882ced984655e90b
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* Link to Quick Start guide
* Update README.md (hadrian/578)
* Fix AppVeyor (hadrian/577)
* Fix CircleCI
* Generic library rules (hadrian/571)
* Fix lint error (hadrian/575)
* Fix missing libHSghc-8.5-0.a (hadrian/574)
* Fix the path to touchy (hadrian/572)
* Fix integer-gmp build (hadrian/568)
* Undo fs*.h workaround
* Fix copying of fs*.h files during RTS registration (hadrian/566)
* Fix Windows build, improve error reporting (hadrian/565)
* Fix Windows build (hadrian/563)
* Fix boot and configure on AppVeyor (hadrian/561)
* Preliminary bindist (hadrian/558, hadrian/555)
* Unregister stage0 package first if it needs to be
cloned (hadrian/552)
* Fix Circle CI (hadrian/553)
* Fix warnings (hadrian/547)
* Merge pull request hadrian/542 from Mistuke/fix-specific-file
* Use Cabal directly in place of ghc-cabal + make build root
configurable (hadrian/531)
* Add user-defined flavour example for turning off dynamic
linking (hadrian/535)
* Add clean routines for fs (hadrian/533)
* Add 'git' to nativeBuildInputs in shell.nix (hadrian/530)
* Add extra include paths when invoking ghc-cabal (hadrian/526)
* Merge pull request hadrian/528 from snowleopard/bump-cabal
* Merge pull request hadrian/521 from snowleopard/drop-chmod
* Change permission bits for build.cabal.sh,
fixes hadrian/517 (hadrian/520)
* Pin nixpkgs and all-cabal-hashes in shell.nix (hadrian/511)
* Add troubleshooting section
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* Make shell.nix less broken (hadrian/510)
* Add --configure flag to the script
* Undo iserv changes (hadrian/507)
* Fix ghc-cabal: Parsec modules are now found in libraries/parsec/src (hadrian/506)
* Move a bunch of types into dedicated modules (hadrian/502)
* Add --quickjump to Haddock (hadrian/505)
* Add iserv library (hadrian/504)
* Merge pull request hadrian/503 from snowleopard/angerman-patch-1
* Merge pull request hadrian/500 from snowleopard/runtime-deps
* Fix Hadrian after Cabal changes (hadrian/498)
* Drop custom logic for Scav_thr and Evac_thr (hadrian/497)
* Fix Haddock (hadrian/496)
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It will remain a submodule until we are ready to merge Hadrian into the
tree.
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Sadly subtrees haven't worked quite as well as we would have liked for
developers. See Hadrian #440.
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Merge commit 'c1fcd9b3f60e8420dd228cd4e3efeb9cfa793aa5'
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