September 2015 - ghc-tickets

Re: [GHC] #6107: GHCi runtime linker cannot link with duplicate common symbols
by GHC 05 Sep '15

05 Sep '15

#6107: GHCi runtime linker cannot link with duplicate common symbols -------------------------------------+------------------------------------- Reporter: exFalso | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.12.1 Component: Runtime System | Version: 7.4.1 (Linker) | Resolution: | Keywords: Operating System: Windows | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: 8228 | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Changes (by ezyang): * component: Compiler => Runtime System (Linker) -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/6107#comment:8> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #1477: ghci shouldn't link entire package
by GHC 05 Sep '15

05 Sep '15

#1477: ghci shouldn't link entire package -------------------------------------+------------------------------------- Reporter: igloo | Owner: Type: feature request | Status: closed Priority: normal | Milestone: ⊥ Component: Runtime System | Version: 6.6.1 (Linker) | Resolution: wontfix | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Changes (by ezyang): * status: new => closed * failure: => None/Unknown * component: GHCi => Runtime System (Linker) * resolution: => wontfix Comment: This would cause major complications for GHCi, as you would need to somehow be able to load the other symbols lazily when you loaded a new library that actually needed them. Additionally, dynamic linking would have the same problem unless the platform supports lazy dynamic loading. The indicated solution is to split the package into three. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/1477#comment:4> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #1851: "make install-strip" should work
by GHC 04 Sep '15

04 Sep '15

#1851: "make install-strip" should work -------------------------------------+------------------------------------- Reporter: igloo | Owner: thomie Type: bug | Status: closed Priority: normal | Milestone: 7.12.1 Component: Build System | Version: 7.10.1-rc1 Resolution: fixed | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Building GHC | Unknown/Multiple failed | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Changes (by thomie): * status: new => closed * resolution: => fixed Comment: gidyn: should be fixed in 7.12. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/1851#comment:14> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #1851: "make install-strip" should work
by GHC 04 Sep '15

04 Sep '15

#1851: "make install-strip" should work -------------------------------------+------------------------------------- Reporter: igloo | Owner: thomie Type: bug | Status: new Priority: normal | Milestone: 7.12.1 Component: Build System | Version: 7.10.1-rc1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Building GHC | Unknown/Multiple failed | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by Thomas Miedema <thomasmiedema@…>): In [changeset:"64761ce9a899954a12d8e3ae8b400c5ad9648137/ghc" 64761ce/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="64761ce9a899954a12d8e3ae8b400c5ad9648137" Build system: implement `make install-strip` (#1851) Reviewed by: bgamari Differential Revision: https://phabricator.haskell.org/D1209 }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/1851#comment:13> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #9943: Replace "error" with "errorWithStackTrace" from GHC.Stack in base libs
by GHC 04 Sep '15

04 Sep '15

#9943: Replace "error" with "errorWithStackTrace" from GHC.Stack in base libs -------------------------------------+------------------------------------- Reporter: | Owner: spacekitteh spacekitteh | Status: new Type: task | Milestone: 7.10.1 Priority: normal | Version: Component: Core | Operating System: Unknown/Multiple Libraries | Type of failure: None/Unknown Keywords: | Blocked By: Architecture: | Related Tickets: Unknown/Multiple | Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- It is basically the same as the standard error function but outputs a stack trace if one is available. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9943> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #5611: Asynchronous exception discarded after safe FFI call
by GHC 04 Sep '15

04 Sep '15

#5611: Asynchronous exception discarded after safe FFI call -------------------------------------+------------------------------------- Reporter: joeyadams | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.2.1 Component: Runtime System | Version: 7.0.3 Resolution: | Keywords: FFI, | exception Operating System: Unknown/Multiple | Architecture: Type of failure: Incorrect result | Unknown/Multiple at runtime | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Changes (by thomie): * owner: simonmar => * status: closed => new * resolution: fixed => * cc: ezyang (added) Comment: This test just failed on me, but just once, not repeatedly. It printed `child: Done waiting` intead of `user error (Exception delivered successfully)`. I was validating an unrelated patch on Phabricator: https://phabricator.haskell.org/harbormaster/build/5908/ (Phab:D1209) CC ezyang, since he worked on this problem before, according to comment:1. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/5611#comment:3> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #10047: inconsistency in name binding between splice and quasiquotation
by GHC 04 Sep '15

04 Sep '15

#10047: inconsistency in name binding between splice and quasiquotation -------------------------------------+------------------------------------- Reporter: rwbarton | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Template | Version: 7.8.4 Haskell | Operating System: Unknown/Multiple Keywords: | Type of failure: None/Unknown Architecture: | Blocked By: Unknown/Multiple | Related Tickets: Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Let me preface this by saying that this may not be a bug. If not then it would be nice if the documentation for Template Haskell could clarify what's going on here. My understanding of quasiquotation is that a quasiquote `[n|foo|]` is equivalent to a splice `$(quoteExp n "foo")`. However, that is not the case in all contexts. {{{ module Q where import Language.Haskell.TH import Language.Haskell.TH.Quote n = QuasiQuoter { quoteExp = dyn } }}} {{{ rwbarton@morphism:/tmp$ ghci -XTemplateHaskell -XQuasiQuotes Q GHCi, version 7.8.3: http://www.haskell.org/ghc/ :? for help Loading package ghc-prim ... linking ... done. Loading package integer-gmp ... linking ... done. Loading package base ... linking ... done. [1 of 1] Compiling Q ( Q.hs, interpreted ) Q.hs:6:5: Warning: Fields of ‘QuasiQuoter’ not initialised: quotePat, quoteType, quoteDec In the expression: QuasiQuoter {quoteExp = dyn} In an equation for ‘n’: n = QuasiQuoter {quoteExp = dyn} Ok, modules loaded: Q. *Q> :t [| $(dyn "foo") |] [| $(dyn "foo") |] :: ExpQ *Q> :t [| [n|foo|] |] Loading package pretty-1.1.1.1 ... linking ... done. Loading package array-0.5.0.0 ... linking ... done. Loading package deepseq-1.3.0.2 ... linking ... done. Loading package containers-0.5.5.1 ... linking ... done. Loading package template-haskell ... linking ... done. <interactive>:1:7: Not in scope: ‘foo’ In the Template Haskell quotation [| [n|foo|] |] }}} Why do these behave differently? (Lastly, the link to the paper "Why It's Nice to be Quoted: Quasiquoting for Haskell" in the User's Guide at https://downloads.haskell.org/~ghc/latest/docs/html/users_guide/template- haskell.html#th-quasiquotation is broken. Does this paper have a permanent home? In any case, I only skimmed it but it didn't seem to answer my question.) -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10047> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #10834: Test suite: Resistance against CallStack line number changes
by GHC 03 Sep '15

03 Sep '15

#10834: Test suite: Resistance against CallStack line number changes -------------------------------------+------------------------------------- Reporter: nomeata | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Test Suite | Version: 7.10.2 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Revisions: | -------------------------------------+------------------------------------- Hi, I just got this: {{{ Actual stderr output differs from expected: --- ./ghci/scripts/T10501.stderr.normalised 2015-09-03 00:20:22.622940998 +0000 +++ ./ghci/scripts/T10501.run.stderr.normalised 2015-09-03 00:20:22.622940998 +0000 @@ -1,6 +1,6 @@ *** Exception: Prelude.head: empty list CallStack: - error, called at libraries/base/GHC/List.hs:1009:3 in base:GHC.List + error, called at libraries/base/GHC/List.hs:1011:3 in base:GHC.List *** Exception: Prelude.undefined CallStack: error, called at libraries/base/GHC/Err.hs:42:14 in base:GHC.Err *** unexpected failure for T10501(ghci) }}} Having the test suite so fragile is annoying. Would it be possible to ignore line number differences in call stacks? -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10834> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #1830: Automatic derivation of Lift
by GHC 03 Sep '15

03 Sep '15

#1830: Automatic derivation of Lift -------------------------------------+------------------------------------- Reporter: guest | Owner: | RyanGlScott Type: feature request | Status: new Priority: normal | Milestone: ⊥ Component: Template Haskell | Version: 6.8.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: Phab:D1168 -------------------------------------+------------------------------------- Comment (by goldfire): Following on from Simon's comment:14, I think it would be helpful to see a discussion of `-XDeriveLift` on a forum/mailing list. I do see there's lots of packages that use `th-lift`, but perhaps these packages and their authors are quite happy continuing to do so. I think Simon and I just want to make sure there's more than one lone ranger out there who wants this before the GHC Team commits to maintaining it into perpetuity! :) Thanks! -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/1830#comment:16> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #6018: Injective type families
by GHC 03 Sep '15

03 Sep '15

#6018: Injective type families -------------------------------------+------------------------------------- Reporter: lunaris | Owner: jstolarek Type: feature request | Status: closed Priority: normal | Milestone: 7.12.1 Component: Compiler | Version: 7.4.1 Resolution: fixed | Keywords: | TypeFamilies, Injective Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: T6018, | T6018fail, T6018rnfail, T6018th, | T6018failclosed1, T6018failclosed2, | T6018failclosed3, T6018failclosed4, | T6018failclosed5, T6018failclosed6, | T6018failclosed7, T6018failclosed8, | T6018failclosed9, | T6018failclosed10, | T6018failclosed11, | T6018failclosed12, T6018ghci, | T6018ghcifail, T6018ghcirnfail Blocked By: | Blocking: Related Tickets: #4259, #10832, | Differential Revisions: Phab:D202 #10833 | -------------------------------------+------------------------------------- Changes (by jstolarek): * related: #4259 => #4259, #10832, #10833 -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/6018#comment:113> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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