September 2014 - ghc-tickets

[GHC] #9644: mapMaybes documentation contains some gibberish
by GHC 18 Nov '14

18 Nov '14

#9644: mapMaybes documentation contains some gibberish -------------------------------------+------------------------------------- Reporter: mineo | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: libraries/base | Version: 7.8.3 Keywords: | Operating System: Architecture: Unknown/Multiple | Unknown/Multiple Difficulty: Easy (less than 1 | Type of failure: Other hour) | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- "If it just Just b, [...]" -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9644> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #8511: GHCi Startup Crash with GHC 7.6.3 / HP 2013.2.0.0 64bit on OS X 10.6
by GHC 18 Nov '14

18 Nov '14

#8511: GHCi Startup Crash with GHC 7.6.3 / HP 2013.2.0.0 64bit on OS X 10.6 ----------------------------------+------------------------------- Reporter: blitzcode | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.6.3 Keywords: | Operating System: MacOS X Architecture: x86_64 (amd64) | Type of failure: GHCi crash Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | ----------------------------------+------------------------------- A couple of HP / GHC releases later this bug still seems to exist: http://ghc.haskell.org/trac/ghc/ticket/6138 32bit works fine, 64bit GHCi crashes frequently on startup, even with XCode 4.1 installed. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8511> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #8517: Add library function retrieve label set by GHC.Conc.Sync.labelThread
by GHC 18 Nov '14

18 Nov '14

#8517: Add library function retrieve label set by GHC.Conc.Sync.labelThread ------------------------------------+------------------------------------- Reporter: blitzcode | Owner: Type: feature request | Status: new Priority: normal | Milestone: Component: libraries/base | Version: 7.6.3 Keywords: | Operating System: Unknown/Multiple Architecture: Unknown/Multiple | Type of failure: None/Unknown Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | ------------------------------------+------------------------------------- It would be useful to be able to retrieve the label set by the labelThread function. For instance, a logging / tracing system could output a human readable string for the thread the trace originated from instead of just the thread ID. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8517> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #8558: Build xhtml and haddock only when `HADDOCK_DOCS=YES`
by GHC 18 Nov '14

18 Nov '14

#8558: Build xhtml and haddock only when `HADDOCK_DOCS=YES` ------------------------------------+------------------------------------- Reporter: nomeata | Owner: Type: feature request | Status: new Priority: normal | Milestone: Component: Build System | Version: 7.6.3 Keywords: | Operating System: Unknown/Multiple Architecture: Unknown/Multiple | Type of failure: None/Unknown Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | ------------------------------------+------------------------------------- In order to save contributor’s time, and in order to run the test suite faster, I suggest to not builds haddock and its dependencies (xhtml, anything else?) if `HADDOCK_DOCS=YES` is specified. The change is rather simple: {{{ diff --git a/ghc.mk b/ghc.mk index dd91a82..b0f93a0 100644 --- a/ghc.mk +++ b/ghc.mk @@ -437,7 +437,9 @@ REGULAR_INSTALL_PACKAGES += compiler endif REGULAR_INSTALL_PACKAGES += $(addprefix libraries/,$(PACKAGES_STAGE2)) +ifeq "$(HADDOCK_DOCS)" "YES" PACKAGES_STAGE1 += xhtml +endif ifeq "$(Windows_Target)" "NO" ifneq "$(TargetOS_CPP)" "ios" PACKAGES_STAGE1 += terminfo @@ -652,8 +654,10 @@ BUILD_DIRS += libraries/integer-gmp/gmp BUILD_DIRS += libraries/integer-gmp/mkGmpDerivedConstants endif +ifeq "$(HADDOCK_DOCS)" "YES" BUILD_DIRS += utils/haddock BUILD_DIRS += utils/haddock/doc +endif BUILD_DIRS += compiler BUILD_DIRS += utils/hsc2hs BUILD_DIRS += utils/ghc-pkg }}} and it does not affect validate runs, as validate has `HADDOCK_DOCS` set to `YES`. If this is introduced, I suggest to annotate these two with a tag in packages, so that one can run `./sync-all get --no-haddock`, similar to `--no-dph`. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8558> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #8544: Auto-Reference ticket-related branches in tickets
by GHC 18 Nov '14

18 Nov '14

#8544: Auto-Reference ticket-related branches in tickets ------------------------------------+------------------------------------- Reporter: nomeata | Owner: Type: feature request | Status: new Priority: normal | Milestone: Component: Trac & Git | Version: 7.6.3 Keywords: | Operating System: Unknown/Multiple Architecture: Unknown/Multiple | Type of failure: None/Unknown Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | ------------------------------------+------------------------------------- This has two possible implementations (and both are useful and can complement each other): * Add a new field to the description „Related branch“. If for ticket #1234 there is a branch matching `T1234` (usually something like `wip/T1234`), link it from there. * When such a branch is created or deleted, post a message to the ticket. This way subscribers know about a possible ongoing implementation, and can review it. These should link somewhere I believe `https://ghc.haskell.org/trac/ghc/log/ghc?rev=<branchname>` is the most useful link. If the link is part of the „branch created“ message, it will become dangling after the branch is closed (presumably because the feature was merged; then the actually commits, if they reference the bug, will be auto-linked). I don’t think this is a problem. But if that is a problem, only put the link in the “Related branches” field, and clear it when the branch is deleted. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8544> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #8527: container's Typeable.h is being shadowed by base's Typeable.h during preprocessing
by GHC 18 Nov '14

18 Nov '14

#8527: container's Typeable.h is being shadowed by base's Typeable.h during preprocessing ------------------------------------+------------------------------------- Reporter: parcs | Owner: parcs Type: bug | Status: new Priority: normal | Milestone: Component: Package system | Version: 7.7 Keywords: | Operating System: Unknown/Multiple Architecture: Unknown/Multiple | Type of failure: None/Unknown Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | ------------------------------------+------------------------------------- Here's a reduced test case: == cpp.hs == {{{ #!haskell {-# LANGUAGE CPP #-} #include "Typeable.h" main = return () }}} == command line == {{{ $ ghc-stage2 -c -package base cpp.hs In file included from cpp.hs:4:0: /home/patrick/code/ghc/libraries/base/include/Typeable.h:17:2: warning: #warning <Typeable.h> is obsolete and will be removed in GHC 7.10 [-Wcpp] #warning <Typeable.h> is obsolete and will be removed in GHC 7.10 ^ compilation IS NOT required $ ghc-stage2 -c -package base -package containers cpp.hs compilation IS NOT required $ ghc-stage2 -c -package containers -package base cpp.hs }}} Notice that if I pass `-package containers` to ghc, the cpp warning from Typeable.h (from the base library) doesn't appear. This is because containers also has a Typeable.h in its include path, and in the invocation of the preprocessor, containers' include path precedes base's no matter how I order the `-package` directives. This behavior is intuitive and limiting. To fix this, I think that the ordering of -I directives passed to the preprocessor should be consistent with the ordering of -package directives passed to ghc. For example, in the above test case, a warning should be shown in the 1st and 2nd invocations of ghc but not the 3rd, because in the 3rd invocation containers precedes base. Does this sound okay? -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8527> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #8528: Preprocessor issues building GHC HEAD on Mavericks
by GHC 18 Nov '14

18 Nov '14

#8528: Preprocessor issues building GHC HEAD on Mavericks ----------------------------------+---------------------------------------- Reporter: guest | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.7 Keywords: | Operating System: MacOS X Architecture: x86_64 (amd64) | Type of failure: Building GHC failed Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | ----------------------------------+---------------------------------------- I can't build GHC HEAD on Mavericks with Xcode 5 and GCC 4.2. My system: * Mavericks, Xcode 5. * Building with GHC 7.6.3 x64 installed from . * Apple GCC 4.2 installed via homebrew. In /Library/Frameworks/GHC.framework/Versions/7.6.3-x86_64/usr/lib/ghc-7.6.3/settings, I've changed the compiled to this: ("C compiler command", "/Users/nkpart/bin/gcc"), ~/bin/gcc is #!/bin/sh echo $* >> ~/bin/gcc_log gcc-4.2 $@ I have run: $ git clone .. $ perl boot $ ./configure $ make The error I get is: "/usr/bin/ghc" -M -static -H64m -O0 -fasm -package-db libraries/bootstrapping.conf -i -iutils/genprimopcode/. -iutils/genprimopcode/dist/build -iutils/genprimopcode/dist/build/autogen -Iutils/genprimopcode/dist/build -Iutils/genprimopcode/dist/build/autogen -package array -no-user-package-db -rtsopts -odir utils/genprimopcode/dist/build -hidir utils/genprimopcode/dist/build -stubdir utils/genprimopcode/dist/build -dep-makefile utils/genprimopcode/dist/build/.depend.haskell.tmp -dep-suffix "" -include-pkg-deps utils/genprimopcode/dist/build/Lexer.hs utils/genprimopcode/./Main.hs utils/genprimopcode/./ParserM.hs utils/genprimopcode/dist/build/Parser.hs utils/genprimopcode/./Syntax.hs line-map.c: file "templates/GenericTemplate.hs" left but not entered utils/genprimopcode/dist/build/Lexer.hs:143:0: error: #else without #if utils/genprimopcode/dist/build/Lexer.hs:144:0: warning: "GTE" redefined utils/genprimopcode/dist/build/Lexer.hs:141:0: warning: this is the location of the previous definition utils/genprimopcode/dist/build/Lexer.hs:145:0: warning: "EQ" redefined utils/genprimopcode/dist/build/Lexer.hs:142:0: warning: this is the location of the previous definition utils/genprimopcode/dist/build/Lexer.hs:146:0: error: #endif without #if utils/genprimopcode/dist/build/Lexer.hs:197:0: error: #else without #if utils/genprimopcode/dist/build/Lexer.hs:200:0: error: #endif without #if make[1]: *** [utils/genprimopcode/dist/build/.depend.haskell] Error 1 make: *** [all] Error 2 -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8528> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #8545: Reorganize Git repositories
by GHC 18 Nov '14

18 Nov '14

#8545: Reorganize Git repositories ------------------------------------+------------------------------------- Reporter: hvr | Owner: hvr Type: task | Status: new Priority: normal | Milestone: 7.10.1 Component: Trac & Git | Version: Keywords: git | Operating System: Unknown/Multiple Architecture: Unknown/Multiple | Type of failure: None/Unknown Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #8251 | ------------------------------------+------------------------------------- This is to track the progress for the GitRepoReorganization which is to be tackled post-7.8 -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8545> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #8559: Compiling dph-lifted fails with "NoSpecConstr" not in scope
by GHC 18 Nov '14

18 Nov '14

#8559: Compiling dph-lifted fails with "NoSpecConstr" not in scope -------------------------------------+------------------------------------- Reporter: trommler | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Data Parallel | Version: 7.7 Haskell | Operating System: Linux Keywords: | Type of failure: Building GHC Architecture: powerpc64 | failed Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | -------------------------------------+------------------------------------- Building ghc-7.7.20131120 fails with this on powerpc64 Linux: {{{ "inplace/bin/ghc-stage2" -hisuf hi -osuf o -hcsuf hc -static -H32m -O -package-name dph-lifted-copy-0.8.0.1 -hide-all-packages -i -ilibraries/dph/dph-lifted-copy/. -ilibraries/dph/dph-lifted-copy/dist- install/build -ilibraries/dph/dph-lifted-copy/dist-install/build/autogen -Ilibraries/dph/dph-lifted-copy/dist-install/build -Ilibraries/dph/dph- lifted-copy/dist-install/build/autogen -Ilibraries/dph/dph-lifted-copy/. -optP-include -optPlibraries/dph/dph-lifted-copy/dist- install/build/autogen/cabal_macros.h -package array-0.5.0.0 -package base-4.7.0.0 -package dph-base-0.8.0.1 -package dph-prim-par-0.8.0.1 -package ghc-7.7.20131115 -package random-1.0.1.1 -package template- haskell-2.9.0.0 -package vector-0.10.9.1 -Odph -funbox-strict-fields -fcpr-off -fno-warn-orphans -fno-warn-missing-signatures -XHaskell98 -XTypeFamilies -XGADTs -XRankNTypes -XBangPatterns -XMagicHash -XUnboxedTuples -XTypeOperators -O2 -no-user-package-db -rtsopts -odir libraries/dph/dph-lifted-copy/dist-install/build -hidir libraries/dph/dph-lifted-copy/dist-install/build -stubdir libraries/dph /dph-lifted-copy/dist-install/build -c libraries/dph/dph-lifted- copy/./Data/Array/Parallel/PArray/PData.hs -o libraries/dph/dph-lifted- copy/dist-install/build/Data/Array/Parallel/PArray/PData.o [23775s] [23775s] libraries/dph/dph-lifted- copy/Data/Array/Parallel/PArray/PData.hs:49:20: [23775s] Not in scope: data constructor `NoSpecConstr' [23775s] make[1]: *** [libraries/dph/dph-lifted-copy/dist- install/build/Data/Array/Parallel/PArray/PData.o] Error 1 [23775s] make: *** [all] Error 2 }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8559> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #9057: Remove /usr/bin/… references
by GHC 18 Nov '14

18 Nov '14

#9057: Remove /usr/bin/… references -------------------------------------------+------------------------------- Reporter: Fuuzetsu | Owner: Type: task | Status: new Priority: normal | Milestone: Component: Build System | Version: 7.8.2 Keywords: | Operating System: Architecture: Unknown/Multiple | Unknown/Multiple Difficulty: Easy (less than 1 hour) | Type of failure: Blocked By: | None/Unknown Related Tickets: | Test Case: | Blocking: -------------------------------------------+------------------------------- The use of /usr/bin/perl in sync-all makes it difficult to work with on distros which don't store binaries in /usr/bin, such as NixOS. A more portable solution would be to use /usr/bin/env perl. It'd be very nice if someone turned such shebangs to use env rather than direct reference. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9057> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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