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Fix install of symlinks with installopt but without installoptopt#932

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dra27 merged 1 commit intoocaml:trunkfrom
whitequark:installopt
Nov 25, 2016
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Fix install of symlinks with installopt but without installoptopt#932
dra27 merged 1 commit intoocaml:trunkfrom
whitequark:installopt

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@whitequark
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Since the ocamlc -> ocamlc.byte symlink is not installed when ocamlopt exists, building ocamlopt, but not *.opt compilers, results in no ocamlc symlink being installed at all. Since ln -sf is already used everywhere, just make the code less clever, and let the symlink be overwritten when appropriate.

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(I suppose the reason no one hit this before is that the chief reason to have ocamlopt but not ocamlopt.opt is cross-compilation...)

@gasche
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gasche commented Nov 24, 2016

I'm not fond of the fact that your solution implies that the order in which you run the install rules impacts the result. It will be fine if you just make install, but maybe during development people run more specific rules manually and now they have to be careful about that.

What about "make the test more clever"? It seems to me that the code previously had a kind of "if ocamlopt exists then make installopt" logic, on which the more clever linking was piggy-backed. We could just separate the two things, make installopt when ocamlopt exist, but install ocamlc.byte as ocamlc when ocamlc.opt does not exist. That seems simple (not "too clever for its own good"), and correct.

The specification I would expect is the following one:

  • install commands reason on the state of what has been built
  • they install the "short name" symlink exactly when they detect that the version they are installing is the best that is available

It is not followed today, but it does not sound hard to follow it. Or maybe this rule is too simplistic for cross-compilation scenarios?

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I'm not fond of the fact that your solution implies that the order in which you run the install rules impacts the result. It will be fine if you just make install, but maybe during development people run more specific rules manually and now they have to be careful about that.

Unless I'm missing something, this is not the case, because install implies installopt implies installoptopt, whereas installoptopt installs more specific symlinks than installopt than install.

That said, your solution does seem more elegant to me also, so I can do that.

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@gasche Done. Remarkably the patch even became simpler.

Makefile Outdated
ln -sf ocamlc.byte$(EXE) ocamlc$(EXE); \
ln -sf ocamlopt.byte$(EXE) ocamlopt$(EXE); \
ln -sf ocamllex.byte$(EXE) ocamllex$(EXE); \
fi
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Indentation is wrong for the fi

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Fixed

ln -sf ocamlc.byte$(EXE) ocamlc$(EXE); \
ln -sf ocamllex.byte$(EXE) ocamllex$(EXE); \
fi
fi
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FWIW The indentation of this one was correct, it's the three lines above which should be indented 😄

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This makes no sense, this conditional is exactly the same as the one ending on line 282.

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Sorry - just looked at the raw file. GitHub (or my browser) is rendering the diff view badly - lines 253-256 are showing at the same indentation. Sorry for the noise...

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dra27 commented Nov 25, 2016

@gasche - is a Changes entry needed for this, in your opinion?

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gasche commented Nov 25, 2016

That's up to @whitequark preference, but my inclination would be "yes": this change fixes an user-observable issue -- so observable that the observers decided to fix the behavior. (It could go in "Bug fixes" or "Compiler distribution build system".)

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@gasche I have no real preference beyond having the bug fixed but your reasoning is convincing.

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dra27 commented Nov 25, 2016

All looks good, thanks!

@dra27 dra27 merged commit 0670dc2 into ocaml:trunk Nov 25, 2016
@whitequark whitequark deleted the installopt branch November 25, 2016 15:54
camlspotter pushed a commit to camlspotter/ocaml that referenced this pull request Oct 17, 2017
sadiqj pushed a commit to sadiqj/ocaml that referenced this pull request Feb 21, 2023
stedolan pushed a commit to stedolan/ocaml that referenced this pull request Mar 21, 2023
stedolan pushed a commit to stedolan/ocaml that referenced this pull request Mar 21, 2023
b11eea1 flambda-backend: Introduce Import_info (ocaml#1036)
bc5b135 flambda-backend: Fix `ocamlobjinfo` on flambda2 .cmx files (ocaml#1029)
c8babbd flambda-backend: Compilation_unit optimisations (ocaml#1035)
e8d3e22 flambda-backend: Use 4.14.0 opam switch for building (includes upgrading ocamlformat to 0.24.1) (ocaml#1030)
eb14a86 flambda-backend: Port PR81 from ocaml-jst (ocaml#1024)
131bc12 flambda-backend: Merge ocaml-jst 2022-12-13 (ocaml#1022)
06c189a flambda-backend: Make stack allocation the default (ocaml#1013)
98debd5 flambda-backend: Initial support for value slots not of value kind (ocaml#946)
deb1714 flambda-backend: Add is_last flag to closinfo words (ocaml#938)
d07fce1 flambda-backend: Disable poll insertion in Configure (ocaml#967)
0f1ce0e flambda-backend: Regenerate ocaml/configure autoconf 2.69 (instead of 2.71) (ocaml#1012)
27132d8 flambda-backend: Fix for spurious typing error related to expanding through functor arguments (ocaml#997)
724fb68 flambda-backend: Use `Compilation_unit.t` instead of `Ident.t` for globals (ocaml#871)
396d5b8 flambda-backend: Add a test for frametable setup in natdynlinked libraries (ocaml#983)
b73ab12 flambda-backend: Fix invocation of `caml_shared_startup` in native dynlink (ocaml#980)
7c7d75a flambda-backend: Fix split_default_wrapper which did not trigger anymore with flambda2 (ocaml#970)
8fb75bd flambda-backend: Port ocaml#11727 and ocaml#11732 (ocaml#965)
fdb7987 flambda-backend: Fix include functor issue after 4.14 merge. (ocaml#948)
9745cdb flambda-backend: Print -dprofile/-dtimings output to stdout like 4.12 (ocaml#943)
5f51f21 flambda-backend: Merge pull request ocaml#932 from mshinwell/4.14-upgrade
841687d flambda-backend: Run make alldepend in ocaml/ (ocaml#936)
72a7658 flambda-backend: Remove reformatting changes only in dynlink/dune (preserving PR889 and adjusting to minimise diff)
6d758cd flambda-backend: Revert whitespace changes in dune files, to match upstream
c86bf6e flambda-backend: Remove duplicate tests for polling
971dbeb flambda-backend: Testsuite fixes
32f8356 flambda-backend: Topeval fix for symbols patch
befea01 flambda-backend: Compilation fixes / rectify merge faults
a84543f flambda-backend: Merge ocaml-jst
8e65056 flambda-backend: Merge ocaml-jst
4d70045 flambda-backend: Remove filename from system frametable (amd64) (ocaml#920)
5e57b7d flambda-backend: Bugfix for runtime frame_descr logic for C frames (ocaml#918)
6423d5e flambda-backend: Merge pull request ocaml#914 from mshinwell/merge-ocaml-jst-2022-10-24
ead605c flambda-backend: Add a missing Extract_exception (ocaml#916)
c8f1481 flambda-backend: Resolve conflicts and add specialise/specialised attributes to Builtin_attributes
cf4d0d3 flambda-backend: Merge fixes (ocaml#21)
c2f742f flambda-backend: Re-enable some tests for Flambda2 (ocaml#881)
3d38d13 flambda-backend: Long frames in frametable (ocaml#797)
85aec7b flambda-backend: Add loop attribute to Builtin_attributes
c0f16e3 flambda-backend: Compilation fixes
90dea23 flambda-backend: Merge flambda-backend/main
5acc6ea flambda-backend: Fixes after merge
e501946 flambda-backend: Merge ocaml-jst
115083b flambda-backend: Merge ocaml-jst
9943b2e flambda-backend: Revert "Revert "Transform tail-recursive functions into recursive continuations (ocaml#893)"" (ocaml#909)
ce339f1 flambda-backend: Fix alloc modes and call kinds for overapplications (ocaml#902)
e6a317c flambda-backend: Revert "Transform tail-recursive functions into recursive continuations (ocaml#893)"
853c488 flambda-backend: Transform tail-recursive functions into recursive continuations (ocaml#893)
5a977e4 flambda-backend: Fix missing End_region primitives on switch arms (ocaml#898)
7fa7f9d flambda-backend: Add missing dependencies to Dune files (ocaml#889)
3cd36f0 flambda-backend: Have Lambda `Pgetglobal` and `Psetglobal` take `Compilation_unit.t` (ocaml#896)
7565915 flambda-backend: [@poll error] attribute (ocaml#745)
9eb9448 flambda-backend: Backport the main safepoints PRs (ocaml#740)
689bdda flambda-backend: Add strict mode for ocamldep (ocaml#892)

git-subtree-dir: ocaml
git-subtree-split: b11eea1
EmileTrotignon pushed a commit to EmileTrotignon/ocaml that referenced this pull request Jan 12, 2024
* remove fallback to pre-odoc-2.2.0 docs-data
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3 participants