GHC

Hi *, It's that time once again - to get some info on what's happening in the world of GHC! It's been a quiet few weeks as a UK Holiday punted one of GHC HQ's meetings off, and this week we were only partially there. The main point of discussion ... [More] was 7.10.2, and continuing work on compiler performance. The good news is, the past few weeks have seen good work on both these fronts! 7.10.2 status 7.10.2 is swimming along very nicely - the ​status page shows the current set of tickets we've fixed and plan on fixing. Not much has changed from last time, except we've fixed even more bugs! We're currently sitting at about 85 bugs fixed, some of them pretty important - code generation bugs, compiler performance fixes, some RTS and event manager work. Your author is actually quite happy with what GHC 7.10.2 looks like, at this rate. List chatter Austin Seipp announced that GHC 7.10.2 will be release soon, and developers/users should get bugs they want fixed reported to us ASAP so we can do something. ​https://mail.haskell.org/pipermail/ghc-devs/2015-June/009150.html Mark Lentczner announced a Haskell Platform alpha featuring GHC 7.10.2 ​https://mail.haskell.org/pipermail/ghc-devs/2015-June/009128.html Facundo Dominguez asks: sometimes we want to create a static pointer in a function with a local definition, how can we do that? The current problem is the desugarer gets in the way and current approaches are currently rejected, but Facundo has some ideas/questions about a fix. ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/009110.html David Macek has made great progress on getting native MSYS2 packages for windows working - which should be a great boon to all our Windows users! ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/009089.html Joachim Breitner announced the new GHC performance dashboard, which can be used to track all of GHC's performance-based tests over time. Whoohoo! ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/009032.html Joachim Breitner asked: is there a way to programmatically 'Raise a Concern' on a Phabricator commit? With the new ​https://perf.haskell.org/ghc/ work, it'd be nice if regressions could be automatically flagged. The current problem is there is no API endpoint, but one can be built. ​https://mail.haskell.org/pipermail/ghc-devs/2015-June/009128.html Adam Gundry asked ghc-devs about some input on changes to the new typechecker plugins API. After some discussion and elbow grease, the new changes have already landed in HEAD and will be in 7.12.1. ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/009097.html Noteworthy commits Commit 45d9a15c4b85a2ed89579106bdafd84accf2cb39 - Fix a huge space leak in the mighty simplifier Commit c89bd681d34d3339771ebdde8aa468b1d9ab042b - Fix quadratic behavior in tidyOccName Commit b03f074fd51adfb9bc4f5275294712ee62741aed - ghci: Allow :back and :forward to take counts Commit 8e4dc8fb63b8d3bfee485c1c830776f3ed704f4d - Greatly speed up nativeCodeGen/seqBlocks Commit c256357242ee2dd282fd0516260edccbb7617244 - Speed up elimCommonBlocks by grouping blocks also by outgoing labels Commit f5188f3acd73a07b648924a58b9882c2d0a3dbcb - Fix weird behavior of -ignore-dot-ghci and -ghci-script Commit 4fffbc34c024231c3c9fac7a2134896cc09c7fb7 - New handling of overlapping instances in Safe Haskell Commit f16ddcee0c64a92ab911a7841a8cf64e3ac671fd - Support stage 1 Template Haskell (non-quasi) quotes, fixes #10382 Commit cf7573b8207bbb17c58612f3345e0b17d74cfb58 - More accurate allocation stats for :set -s Closed tickets #10407, #10408, #10177, #10359, #10403, #10248, #9579, #10415, #10419, #10427, #10429, #10397, #10422, #10335, #10366, #10110, #10397, #10349, #10244, #8555, #8799, #9131, #10396, #10354, #10278, #9899, #3533, #9950, #10092, #9950, #10430, #9682, #9584, #10446, #10410, #10298, #10449, #10399, #7695, #10261, #8292, #10360, #10126, #10317, #10101, #10322, #10313, #10471, #10473, #7170, #10473, #10423, #10466, #8695, #10461, #10052, #10370, #10425, #10452, #10474, [Less]

Hi *, It's that time once again - to get some info on what's happening in the world of GHC! It's been a quiet few weeks as a UK Holiday punted one of GHC HQ's meetings off, and this week we were only partially there. The main point of discussion ... [More] was 7.10.2, and continuing work on compiler performance. The good news is, the past few weeks have seen good work on both these fronts! 7.10.2 status 7.10.2 is swimming along very nicely - the ​status page shows the current set of tickets we've fixed and plan on fixing. Not much has changed from last time, except we've fixed even more bugs! We're currently sitting at about 85 bugs fixed, some of them pretty important - code generation bugs, compiler performance fixes, some RTS and event manager work. Your author is actually quite happy with what GHC 7.10.2 looks like, at this rate. List chatter Austin Seipp announced that GHC 7.10.2 will be release soon, and developers/users should get bugs they want fixed reported to us ASAP so we can do something. ​https://mail.haskell.org/pipermail/ghc-devs/2015-June/009150.html Mark Lentczner announced a Haskell Platform alpha featuring GHC 7.10.2 ​https://mail.haskell.org/pipermail/ghc-devs/2015-June/009128.html Facundo Dominguez asks: sometimes we want to create a static pointer in a function with a local definition, how can we do that? The current problem is the desugarer gets in the way and current approaches are currently rejected, but Facundo has some ideas/questions about a fix. ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/009110.html David Macek has made great progress on getting native MSYS2 packages for windows working - which should be a great boon to all our Windows users! ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/009089.html Joachim Breitner announced the new GHC performance dashboard, which can be used to track all of GHC's performance-based tests over time. Whoohoo! ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/009032.html Joachim Breitner asked: is there a way to programmatically 'Raise a Concern' on a Phabricator commit? With the new ​https://perf.haskell.org/ghc/ work, it'd be nice if regressions could be automatically flagged. The current problem is there is no API endpoint, but one can be built. ​https://mail.haskell.org/pipermail/ghc-devs/2015-June/009128.html Adam Gundry asked ghc-devs about some input on changes to the new typechecker plugins API. After some discussion and elbow grease, the new changes have already landed in HEAD and will be in 7.12.1. ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/009097.html Noteworthy commits Commit 45d9a15c4b85a2ed89579106bdafd84accf2cb39 - Fix a huge space leak in the mighty simplifier Commit c89bd681d34d3339771ebdde8aa468b1d9ab042b - Fix quadratic behavior in tidyOccName Commit b03f074fd51adfb9bc4f5275294712ee62741aed - ghci: Allow :back and :forward to take counts Commit 8e4dc8fb63b8d3bfee485c1c830776f3ed704f4d - Greatly speed up nativeCodeGen/seqBlocks Commit c256357242ee2dd282fd0516260edccbb7617244 - Speed up elimCommonBlocks by grouping blocks also by outgoing labels Commit f5188f3acd73a07b648924a58b9882c2d0a3dbcb - Fix weird behavior of -ignore-dot-ghci and -ghci-script Commit 4fffbc34c024231c3c9fac7a2134896cc09c7fb7 - New handling of overlapping instances in Safe Haskell Commit f16ddcee0c64a92ab911a7841a8cf64e3ac671fd - Support stage 1 Template Haskell (non-quasi) quotes, fixes #10382 Commit cf7573b8207bbb17c58612f3345e0b17d74cfb58 - More accurate allocation stats for :set -s Closed tickets #10407, #10408, #10177, #10359, #10403, #10248, #9579, #10415, #10419, #10427, #10429, #10397, #10422, #10335, #10366, #10110, #10397, #10349, #10244, #8555, #8799, #9131, #10396, #10354, #10278, #9899, #3533, #9950, #10092, #9950, #10430, #9682, #9584, #10446, #10410, #10298, #10449, #10399, #7695, #10261, #8292, #10360, #10126, #10317, #10101, #10322, #10313, #10471, #10473, #7170, #10473, #10423, #10466, #8695, #10461, #10052, #10370, #10425, #10452, #10474, [Less]

Hi *, It's that time once again - to get some info on what's happening in the world of GHC! It's been a quiet few weeks as a UK Holiday punted one of GHC HQ's meetings off, and this week we were only partially there. The main point of discussion ... [More] was 7.10.2, and continuing work on compiler performance. The good news is, the past few weeks have seen good work on both these fronts! 7.10.2 status 7.10.2 is swimming along very nicely - the ​status page shows the current set of tickets we've fixed and plan on fixing. Not much has changed from last time, except we've fixed even more bugs! We're currently sitting at about 85 bugs fixed, some of them pretty important - code generation bugs, compiler performance fixes, some RTS and event manager work. Your author is actually quite happy with what GHC 7.10.2 looks like, at this rate. List chatter Austin Seipp announced that GHC 7.10.2 will be release soon, and developers/users should get bugs they want fixed reported to us ASAP so we can do something. ​https://mail.haskell.org/pipermail/ghc-devs/2015-June/009150.html Mark Lentczner announced a Haskell Platform alpha featuring GHC 7.10.2 ​https://mail.haskell.org/pipermail/ghc-devs/2015-June/009128.html Facundo Dominguez asks: sometimes we want to create a static pointer in a function with a local definition, how can we do that? The current problem is the desugarer gets in the way and current approaches are currently rejected, but Facundo has some ideas/questions about a fix. ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/009110.html David Macek has made great progress on getting native MSYS2 packages for windows working - which should be a great boon to all our Windows users! ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/009089.html Joachim Breitner announced the new GHC performance dashboard, which can be used to track all of GHC's performance-based tests over time. Whoohoo! ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/009032.html Joachim Breitner asked: is there a way to programmatically 'Raise a Concern' on a Phabricator commit? With the new ​https://perf.haskell.org/ghc/ work, it'd be nice if regressions could be automatically flagged. The current problem is there is no API endpoint, but one can be built. ​https://mail.haskell.org/pipermail/ghc-devs/2015-June/009128.html Adam Gundry asked ghc-devs about some input on changes to the new typechecker plugins API. After some discussion and elbow grease, the new changes have already landed in HEAD and will be in 7.12.1. ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/009097.html Noteworthy commits Commit 45d9a15c4b85a2ed89579106bdafd84accf2cb39 - Fix a huge space leak in the mighty simplifier Commit c89bd681d34d3339771ebdde8aa468b1d9ab042b - Fix quadratic behavior in tidyOccName Commit b03f074fd51adfb9bc4f5275294712ee62741aed - ghci: Allow :back and :forward to take counts Commit 8e4dc8fb63b8d3bfee485c1c830776f3ed704f4d - Greatly speed up nativeCodeGen/seqBlocks Commit c256357242ee2dd282fd0516260edccbb7617244 - Speed up elimCommonBlocks by grouping blocks also by outgoing labels Commit f5188f3acd73a07b648924a58b9882c2d0a3dbcb - Fix weird behavior of -ignore-dot-ghci and -ghci-script Commit 4fffbc34c024231c3c9fac7a2134896cc09c7fb7 - New handling of overlapping instances in Safe Haskell Commit f16ddcee0c64a92ab911a7841a8cf64e3ac671fd - Support stage 1 Template Haskell (non-quasi) quotes, fixes #10382 Commit cf7573b8207bbb17c58612f3345e0b17d74cfb58 - More accurate allocation stats for :set -s Closed tickets #10407, #10408, #10177, #10359, #10403, #10248, #9579, #10415, #10419, #10427, #10429, #10397, #10422, #10335, #10366, #10110, #10397, #10349, #10244, #8555, #8799, #9131, #10396, #10354, #10278, #9899, #3533, #9950, #10092, #9950, #10430, #9682, #9584, #10446, #10410, #10298, #10449, #10399, #7695, #10261, #8292, #10360, #10126, #10317, #10101, #10322, #10313, #10471, #10473, #7170, #10473, #10423, #10466, #8695, #10461, #10052, #10370, #10425, #10452, #10474, [Less]

Hi *, It's that time once again - to get some info on what's happening in the world of GHC! It's been a quiet few weeks as a UK Holiday punted one of GHC HQ's meetings off, and this week we were only partially there. The main point of discussion ... [More] was 7.10.2, and continuing work on compiler performance. The good news is, the past few weeks have seen good work on both these fronts! 7.10.2 status 7.10.2 is swimming along very nicely - the ​status page shows the current set of tickets we've fixed and plan on fixing. Not much has changed from last time, except we've fixed even more bugs! We're currently sitting at about 85 bugs fixed, some of them pretty important - code generation bugs, compiler performance fixes, some RTS and event manager work. Your author is actually quite happy with what GHC 7.10.2 looks like, at this rate. List chatter Austin Seipp announced that GHC 7.10.2 will be release soon, and developers/users should get bugs they want fixed reported to us ASAP so we can do something. ​https://mail.haskell.org/pipermail/ghc-devs/2015-June/009150.html Mark Lentczner announced a Haskell Platform alpha featuring GHC 7.10.2 ​https://mail.haskell.org/pipermail/ghc-devs/2015-June/009128.html Facundo Dominguez asks: sometimes we want to create a static pointer in a function with a local definition, how can we do that? The current problem is the desugarer gets in the way and current approaches are currently rejected, but Facundo has some ideas/questions about a fix. ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/009110.html David Macek has made great progress on getting native MSYS2 packages for windows working - which should be a great boon to all our Windows users! ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/009089.html Joachim Breitner announced the new GHC performance dashboard, which can be used to track all of GHC's performance-based tests over time. Whoohoo! ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/009032.html Joachim Breitner asked: is there a way to programmatically 'Raise a Concern' on a Phabricator commit? With the new ​https://perf.haskell.org/ghc/ work, it'd be nice if regressions could be automatically flagged. The current problem is there is no API endpoint, but one can be built. ​https://mail.haskell.org/pipermail/ghc-devs/2015-June/009128.html Adam Gundry asked ghc-devs about some input on changes to the new typechecker plugins API. After some discussion and elbow grease, the new changes have already landed in HEAD and will be in 7.12.1. ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/009097.html Noteworthy commits Commit 45d9a15c4b85a2ed89579106bdafd84accf2cb39 - Fix a huge space leak in the mighty simplifier Commit c89bd681d34d3339771ebdde8aa468b1d9ab042b - Fix quadratic behavior in tidyOccName Commit b03f074fd51adfb9bc4f5275294712ee62741aed - ghci: Allow :back and :forward to take counts Commit 8e4dc8fb63b8d3bfee485c1c830776f3ed704f4d - Greatly speed up nativeCodeGen/seqBlocks Commit c256357242ee2dd282fd0516260edccbb7617244 - Speed up elimCommonBlocks by grouping blocks also by outgoing labels Commit f5188f3acd73a07b648924a58b9882c2d0a3dbcb - Fix weird behavior of -ignore-dot-ghci and -ghci-script Commit 4fffbc34c024231c3c9fac7a2134896cc09c7fb7 - New handling of overlapping instances in Safe Haskell Commit f16ddcee0c64a92ab911a7841a8cf64e3ac671fd - Support stage 1 Template Haskell (non-quasi) quotes, fixes #10382 Commit cf7573b8207bbb17c58612f3345e0b17d74cfb58 - More accurate allocation stats for :set -s Closed tickets #10407, #10408, #10177, #10359, #10403, #10248, #9579, #10415, #10419, #10427, #10429, #10397, #10422, #10335, #10366, #10110, #10397, #10349, #10244, #8555, #8799, #9131, #10396, #10354, #10278, #9899, #3533, #9950, #10092, #9950, #10430, #9682, #9584, #10446, #10410, #10298, #10449, #10399, #7695, #10261, #8292, #10360, #10126, #10317, #10101, #10322, #10313, #10471, #10473, #7170, #10473, #10423, #10466, #8695, #10461, #10052, #10370, #10425, #10452, #10474, [Less]

Hi *, It's been a few weeks since the last news bulletin - this is the result of mostly quietness on behalf of the list and developers, and some sickness on behalf of your editor for several days there. But now there's actually some things to ... [More] write here! The past few weeks, GHC HQ has been having some quiet meetings mostly about bugfixes for a 7.10.2 release - as well as noodling about compiler performance. Austin has begun compiling his preliminary notes on the wiki, under the CompilerPerformance page, where we'll be trying to keep track of the ongoing performance story. Hopefully, GHC 7.12.1 will boast a bit better performance numbers. There are a lot of users who are interested in this particular pain point, so please file tickets and CC yourself on bugs (like #10370), or feel free to help out! 7.10.2 status There's been a bit of chatter about the lists about something on many peoples mind: the release of GHC 7.10.2. Most prominently, Mark Lentczner popped in to ask when the next GHC release will happen - in particular, he'd like to make a Haskell Platform release in lockstep with it (see below for a link to Mark's email). Until recently, the actual desire for 7.10.2 wasn't totally clear, and at this point, GHC HQ hasn't firmly committed to the 7.10.2 release date. But if milestone:7.10.2 is any indicator, we've already closed over three dozen bugs, several of them high priority - and they keep coming in. So it seems likely people will want these fixes in their hands relatively soon. Just remember: if you need a fix for 7.10.2, or have a bug you need us to look at, please email the ghc-devs list, file a ticket, and get our attention! Just be sure to set the milestone to 7.10.2. List chatter Herbert Valerio Riedel opened an RFC about a regression in GHC 7.10 relating to the update to Unicode 7. Any input from users of international languages or unicode users would be appreciated! ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008930.html Herbert Valerio Riedel also asked about a new C pre-processor implementation for GHC - but in particular, adopting the extant cpphs into the GHC codebase for this task itself. ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008934.html Austin Seipp emailed ghc-devs about the HCAR report, for which the GHC entry is due May 17th! Developers should get their edits in quickly. ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008939.html Joachim Breitner asks if the branchless implementation for our literal cases are worth it for their complexity. There were some interesting responses, including some remarks on the V8 JavaScript compiler. ​https://mail.haskell.org/pipermail/ghc-devs/2015-April/008852.html Niklas Hambüchen announced that he's backported the recent lightweight stack-trace support in GHC HEAD to GHC 7.10 and GHC 7.8 - meaning that users of these stable release can have informative call stack traces, even without profiling! FP Complete was interested in this feature, so they'd probably love to hear user input. ​https://mail.haskell.org/pipermail/ghc-devs/2015-April/008862.html David Terei has written up a proposal on reconciling the existence of Roles with Safe Haskell, which caused us a lot of problems during the 7.8 release cycle. In particular, concerning the ability to break module abstractions and requiring programmers to safeguard abstractions through careful use of roles - and David's written a proposal to address that. ​https://mail.haskell.org/pipermail/ghc-devs/2015-April/008902.html Mark Lentczner started a thread about the 7.10.2 release schedule - because this time, he wants to do a concurrent Haskell Platform release! The thread ended up with a good amount of discussion concerning if 7.10.2 is even needed - but at this rate, it looks like it will ship sometime soon. ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008904.html Mateusz Kowalczyk posted to ghc-devs hoping to get some help with a tricky, long-standing issue: #4012, which concerns the determinism of GHC binaries. It turns out GHC isn't entirely deterministic when it calculates package IDs, meaning things get really bad when you mix prebuilt binary packages for systems. This in particular has become a real problem for the Nix package manager and users of Haskell applications. Mateusz asks if anyone would be willing to help look into it - and a lot of people would appreciate the help! ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008992.html Noteworthy commits Commit f2d1b7fcbbc55e33375a7321222a9f4ee189aa38 - Support unboxing for GADT product types. Commit 51af102e5c6c56e0987432aa5a21fe10e24090e9 - Better hints when RTS options are not available. Commit 524ddbdad5816f77b7b719cac0671eebd3473616 - Make sure GHC.List.last is memory-efficient. Commit a1275a762ec04c1159ae37199b1c8f998a5c5499 - Improve improvement in the constraint solver. Commit 4efa421327cf127ebefde59b2eece693e37dc3c6 - Permit empty closed type families. Commit 477f514f6ebcf783810da93e2191e4b6ea65559b - rts: add "-no-rtsopts-suggestions" option Commit cf7573b8207bbb17c58612f3345e0b17d74cfb58 - More accurate allocation stats for :set +s Commit c4e8097ea8dd6e43eae7aadd6bae7e13272ba74d - Bump base version to 4.8.2.0 Commit 0bbc2ac6dae9ce2838f23a75a6a989826c06f3f5 - Use the gold linker for aarch64/linux (#9673) Commit 1e8c9b81a819da8eb54405a029fc33a9f5220321 - Enable SMP and GHCi support for AArch64 Closed tickets #10293, #10273, #10021, #10209, #10255, #10326, #9745, #10314, #8928, #8743, #10182, #10281, #10325, #10297, #10292, #10304, #10260, #9204, #10121, #10329, #9920, #10308, #10234, #10356, #10351, #10364, #9564, #10306, #10108, #9581, #10369, #9673, #10288, #10260, #10363, #10315, #10389, #9929, #10384, #10382, #10400, #10256, #10254, #10277, #10299, #10268, #10269, #10280, #10312, #10209, #10109, #10321, #10285, #9895, #10395, #10263, #10293, #10210, #10302, #10206, #9858, #10045, and #9840. [Less]

Hi *, It's been a few weeks since the last news bulletin - this is the result of mostly quietness on behalf of the list and developers, and some sickness on behalf of your editor for several days there. But now there's actually some things to ... [More] write here! The past few weeks, GHC HQ has been having some quiet meetings mostly about bugfixes for a 7.10.2 release - as well as noodling about compiler performance. Austin has begun compiling his preliminary notes on the wiki, under the CompilerPerformance page, where we'll be trying to keep track of the ongoing performance story. Hopefully, GHC 7.12.1 will boast a bit better performance numbers. There are a lot of users who are interested in this particular pain point, so please file tickets and CC yourself on bugs (like #10370), or feel free to help out! 7.10.2 status There's been a bit of chatter about the lists about something on many peoples mind: the release of GHC 7.10.2. Most prominently, Mark Lentczner popped in to ask when the next GHC release will happen - in particular, he'd like to make a Haskell Platform release in lockstep with it (see below for a link to Mark's email). Until recently, the actual desire for 7.10.2 wasn't totally clear, and at this point, GHC HQ hasn't firmly committed to the 7.10.2 release date. But if milestone:7.10.2 is any indicator, we've already closed over three dozen bugs, several of them high priority - and they keep coming in. So it seems likely people will want these fixes in their hands relatively soon. Just remember: if you need a fix for 7.10.2, or have a bug you need us to look at, please email the ghc-devs list, file a ticket, and get our attention! Just be sure to set the milestone to 7.10.2. List chatter Herbert Valerio Riedel opened an RFC about a regression in GHC 7.10 relating to the update to Unicode 7. Any input from users of international languages or unicode users would be appreciated! ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008930.html Herbert Valerio Riedel also asked about a new C pre-processor implementation for GHC - but in particular, adopting the extant cpphs into the GHC codebase for this task itself. ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008934.html Austin Seipp emailed ghc-devs about the HCAR report, for which the GHC entry is due May 17th! Developers should get their edits in quickly. ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008939.html Joachim Breitner asks if the branchless implementation for our literal cases are worth it for their complexity. There were some interesting responses, including some remarks on the V8 JavaScript compiler. ​https://mail.haskell.org/pipermail/ghc-devs/2015-April/008852.html Niklas Hambüchen announced that he's backported the recent lightweight stack-trace support in GHC HEAD to GHC 7.10 and GHC 7.8 - meaning that users of these stable release can have informative call stack traces, even without profiling! FP Complete was interested in this feature, so they'd probably love to hear user input. ​https://mail.haskell.org/pipermail/ghc-devs/2015-April/008862.html David Terei has written up a proposal on reconciling the existence of Roles with Safe Haskell, which caused us a lot of problems during the 7.8 release cycle. In particular, concerning the ability to break module abstractions and requiring programmers to safeguard abstractions through careful use of roles - and David's written a proposal to address that. ​https://mail.haskell.org/pipermail/ghc-devs/2015-April/008902.html Mark Lentczner started a thread about the 7.10.2 release schedule - because this time, he wants to do a concurrent Haskell Platform release! The thread ended up with a good amount of discussion concerning if 7.10.2 is even needed - but at this rate, it looks like it will ship sometime soon. ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008904.html Mateusz Kowalczyk posted to ghc-devs hoping to get some help with a tricky, long-standing issue: #4012, which concerns the determinism of GHC binaries. It turns out GHC isn't entirely deterministic when it calculates package IDs, meaning things get really bad when you mix prebuilt binary packages for systems. This in particular has become a real problem for the Nix package manager and users of Haskell applications. Mateusz asks if anyone would be willing to help look into it - and a lot of people would appreciate the help! ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008992.html Noteworthy commits Commit f2d1b7fcbbc55e33375a7321222a9f4ee189aa38 - Support unboxing for GADT product types. Commit 51af102e5c6c56e0987432aa5a21fe10e24090e9 - Better hints when RTS options are not available. Commit 524ddbdad5816f77b7b719cac0671eebd3473616 - Make sure GHC.List.last is memory-efficient. Commit a1275a762ec04c1159ae37199b1c8f998a5c5499 - Improve improvement in the constraint solver. Commit 4efa421327cf127ebefde59b2eece693e37dc3c6 - Permit empty closed type families. Commit 477f514f6ebcf783810da93e2191e4b6ea65559b - rts: add "-no-rtsopts-suggestions" option Commit cf7573b8207bbb17c58612f3345e0b17d74cfb58 - More accurate allocation stats for :set +s Commit c4e8097ea8dd6e43eae7aadd6bae7e13272ba74d - Bump base version to 4.8.2.0 Commit 0bbc2ac6dae9ce2838f23a75a6a989826c06f3f5 - Use the gold linker for aarch64/linux (#9673) Commit 1e8c9b81a819da8eb54405a029fc33a9f5220321 - Enable SMP and GHCi support for AArch64 Closed tickets #10293, #10273, #10021, #10209, #10255, #10326, #9745, #10314, #8928, #8743, #10182, #10281, #10325, #10297, #10292, #10304, #10260, #9204, #10121, #10329, #9920, #10308, #10234, #10356, #10351, #10364, #9564, #10306, #10108, #9581, #10369, #9673, #10288, #10260, #10363, #10315, #10389, #9929, #10384, #10382, #10400, #10256, #10254, #10277, #10299, #10268, #10269, #10280, #10312, #10209, #10109, #10321, #10285, #9895, #10395, #10263, #10293, #10210, #10302, #10206, #9858, #10045, and #9840. [Less]

Hi *, It's been a few weeks since the last news bulletin - this is the result of mostly quietness on behalf of the list and developers, and some sickness on behalf of your editor for several days there. But now there's actually some things to ... [More] write here! The past few weeks, GHC HQ has been having some quiet meetings mostly about bugfixes for a 7.10.2 release - as well as noodling about compiler performance. Austin has begun compiling his preliminary notes on the wiki, under the CompilerPerformance page, where we'll be trying to keep track of the ongoing performance story. Hopefully, GHC 7.12.1 will boast a bit better performance numbers. There are a lot of users who are interested in this particular pain point, so please file tickets and CC yourself on bugs (like #10370), or feel free to help out! 7.10.2 status There's been a bit of chatter about the lists about something on many peoples mind: the release of GHC 7.10.2. Most prominently, Mark Lentczner popped in to ask when the next GHC release will happen - in particular, he'd like to make a Haskell Platform release in lockstep with it (see below for a link to Mark's email). Until recently, the actual desire for 7.10.2 wasn't totally clear, and at this point, GHC HQ hasn't firmly committed to the 7.10.2 release date. But if milestone:7.10.2 is any indicator, we've already closed over three dozen bugs, several of them high priority - and they keep coming in. So it seems likely people will want these fixes in their hands relatively soon. Just remember: if you need a fix for 7.10.2, or have a bug you need us to look at, please email the ghc-devs list, file a ticket, and get our attention! Just be sure to set the milestone to 7.10.2. List chatter Herbert Valerio Riedel opened an RFC about a regression in GHC 7.10 relating to the update to Unicode 7. Any input from users of international languages or unicode users would be appreciated! ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008930.html Herbert Valerio Riedel also asked about a new C pre-processor implementation for GHC - but in particular, adopting the extant cpphs into the GHC codebase for this task itself. ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008934.html Austin Seipp emailed ghc-devs about the HCAR report, for which the GHC entry is due May 17th! Developers should get their edits in quickly. ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008939.html Joachim Breitner asks if the branchless implementation for our literal cases are worth it for their complexity. There were some interesting responses, including some remarks on the V8 JavaScript compiler. ​https://mail.haskell.org/pipermail/ghc-devs/2015-April/008852.html Niklas Hambüchen announced that he's backported the recent lightweight stack-trace support in GHC HEAD to GHC 7.10 and GHC 7.8 - meaning that users of these stable release can have informative call stack traces, even without profiling! FP Complete was interested in this feature, so they'd probably love to hear user input. ​https://mail.haskell.org/pipermail/ghc-devs/2015-April/008862.html David Terei has written up a proposal on reconciling the existence of Roles with Safe Haskell, which caused us a lot of problems during the 7.8 release cycle. In particular, concerning the ability to break module abstractions and requiring programmers to safeguard abstractions through careful use of roles - and David's written a proposal to address that. ​https://mail.haskell.org/pipermail/ghc-devs/2015-April/008902.html Mark Lentczner started a thread about the 7.10.2 release schedule - because this time, he wants to do a concurrent Haskell Platform release! The thread ended up with a good amount of discussion concerning if 7.10.2 is even needed - but at this rate, it looks like it will ship sometime soon. ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008904.html Mateusz Kowalczyk posted to ghc-devs hoping to get some help with a tricky, long-standing issue: #4012, which concerns the determinism of GHC binaries. It turns out GHC isn't entirely deterministic when it calculates package IDs, meaning things get really bad when you mix prebuilt binary packages for systems. This in particular has become a real problem for the Nix package manager and users of Haskell applications. Mateusz asks if anyone would be willing to help look into it - and a lot of people would appreciate the help! ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008992.html Noteworthy commits Commit f2d1b7fcbbc55e33375a7321222a9f4ee189aa38 - Support unboxing for GADT product types. Commit 51af102e5c6c56e0987432aa5a21fe10e24090e9 - Better hints when RTS options are not available. Commit 524ddbdad5816f77b7b719cac0671eebd3473616 - Make sure GHC.List.last is memory-efficient. Commit a1275a762ec04c1159ae37199b1c8f998a5c5499 - Improve improvement in the constraint solver. Commit 4efa421327cf127ebefde59b2eece693e37dc3c6 - Permit empty closed type families. Commit 477f514f6ebcf783810da93e2191e4b6ea65559b - rts: add "-no-rtsopts-suggestions" option Commit cf7573b8207bbb17c58612f3345e0b17d74cfb58 - More accurate allocation stats for :set +s Commit c4e8097ea8dd6e43eae7aadd6bae7e13272ba74d - Bump base version to 4.8.2.0 Commit 0bbc2ac6dae9ce2838f23a75a6a989826c06f3f5 - Use the gold linker for aarch64/linux (#9673) Commit 1e8c9b81a819da8eb54405a029fc33a9f5220321 - Enable SMP and GHCi support for AArch64 Closed tickets #10293, #10273, #10021, #10209, #10255, #10326, #9745, #10314, #8928, #8743, #10182, #10281, #10325, #10297, #10292, #10304, #10260, #9204, #10121, #10329, #9920, #10308, #10234, #10356, #10351, #10364, #9564, #10306, #10108, #9581, #10369, #9673, #10288, #10260, #10363, #10315, #10389, #9929, #10384, #10382, #10400, #10256, #10254, #10277, #10299, #10268, #10269, #10280, #10312, #10209, #10109, #10321, #10285, #9895, #10395, #10263, #10293, #10210, #10302, #10206, #9858, #10045, and #9840. [Less]

Hi *, It's been a few weeks since the last news bulletin - this is the result of mostly quietness on behalf of the list and developers, and some sickness on behalf of your editor for several days there. But now there's actually some things to ... [More] write here! The past few weeks, GHC HQ has been having some quiet meetings mostly about bugfixes for a 7.10.2 release - as well as noodling about compiler performance. Austin has begun compiling his preliminary notes on the wiki, under the CompilerPerformance page, where we'll be trying to keep track of the ongoing performance story. Hopefully, GHC 7.12.1 will boast a bit better performance numbers. There are a lot of users who are interested in this particular pain point, so please file tickets and CC yourself on bugs (like #10370), or feel free to help out! 7.10.2 status There's been a bit of chatter about the lists about something on many peoples mind: the release of GHC 7.10.2. Most prominently, Mark Lentczner popped in to ask when the next GHC release will happen - in particular, he'd like to make a Haskell Platform release in lockstep with it (see below for a link to Mark's email). Until recently, the actual desire for 7.10.2 wasn't totally clear, and at this point, GHC HQ hasn't firmly committed to the 7.10.2 release date. But if milestone:7.10.2 is any indicator, we've already closed over three dozen bugs, several of them high priority - and they keep coming in. So it seems likely people will want these fixes in their hands relatively soon. Just remember: if you need a fix for 7.10.2, or have a bug you need us to look at, please email the ghc-devs list, file a ticket, and get our attention! Just be sure to set the milestone to 7.10.2. List chatter Herbert Valerio Riedel opened an RFC about a regression in GHC 7.10 relating to the update to Unicode 7. Any input from users of international languages or unicode users would be appreciated! ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008930.html Herbert Valerio Riedel also asked about a new C pre-processor implementation for GHC - but in particular, adopting the extant cpphs into the GHC codebase for this task itself. ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008934.html Austin Seipp emailed ghc-devs about the HCAR report, for which the GHC entry is due May 17th! Developers should get their edits in quickly. ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008939.html Joachim Breitner asks if the branchless implementation for our literal cases are worth it for their complexity. There were some interesting responses, including some remarks on the V8 JavaScript compiler. ​https://mail.haskell.org/pipermail/ghc-devs/2015-April/008852.html Niklas Hambüchen announced that he's backported the recent lightweight stack-trace support in GHC HEAD to GHC 7.10 and GHC 7.8 - meaning that users of these stable release can have informative call stack traces, even without profiling! FP Complete was interested in this feature, so they'd probably love to hear user input. ​https://mail.haskell.org/pipermail/ghc-devs/2015-April/008862.html David Terei has written up a proposal on reconciling the existence of Roles with Safe Haskell, which caused us a lot of problems during the 7.8 release cycle. In particular, concerning the ability to break module abstractions and requiring programmers to safeguard abstractions through careful use of roles - and David's written a proposal to address that. ​https://mail.haskell.org/pipermail/ghc-devs/2015-April/008902.html Mark Lentczner started a thread about the 7.10.2 release schedule - because this time, he wants to do a concurrent Haskell Platform release! The thread ended up with a good amount of discussion concerning if 7.10.2 is even needed - but at this rate, it looks like it will ship sometime soon. ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008904.html Mateusz Kowalczyk posted to ghc-devs hoping to get some help with a tricky, long-standing issue: #4012, which concerns the determinism of GHC binaries. It turns out GHC isn't entirely deterministic when it calculates package IDs, meaning things get really bad when you mix prebuilt binary packages for systems. This in particular has become a real problem for the Nix package manager and users of Haskell applications. Mateusz asks if anyone would be willing to help look into it - and a lot of people would appreciate the help! ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008992.html Noteworthy commits Commit f2d1b7fcbbc55e33375a7321222a9f4ee189aa38 - Support unboxing for GADT product types. Commit 51af102e5c6c56e0987432aa5a21fe10e24090e9 - Better hints when RTS options are not available. Commit 524ddbdad5816f77b7b719cac0671eebd3473616 - Make sure GHC.List.last is memory-efficient. Commit a1275a762ec04c1159ae37199b1c8f998a5c5499 - Improve improvement in the constraint solver. Commit 4efa421327cf127ebefde59b2eece693e37dc3c6 - Permit empty closed type families. Commit 477f514f6ebcf783810da93e2191e4b6ea65559b - rts: add "-no-rtsopts-suggestions" option Commit cf7573b8207bbb17c58612f3345e0b17d74cfb58 - More accurate allocation stats for :set +s Commit c4e8097ea8dd6e43eae7aadd6bae7e13272ba74d - Bump base version to 4.8.2.0 Commit 0bbc2ac6dae9ce2838f23a75a6a989826c06f3f5 - Use the gold linker for aarch64/linux (#9673) Commit 1e8c9b81a819da8eb54405a029fc33a9f5220321 - Enable SMP and GHCi support for AArch64 Closed tickets #10293, #10273, #10021, #10209, #10255, #10326, #9745, #10314, #8928, #8743, #10182, #10281, #10325, #10297, #10292, #10304, #10260, #9204, #10121, #10329, #9920, #10308, #10234, #10356, #10351, #10364, #9564, #10306, #10108, #9581, #10369, #9673, #10288, #10260, #10363, #10315, #10389, #9929, #10384, #10382, #10400, #10256, #10254, #10277, #10299, #10268, #10269, #10280, #10312, #10209, #10109, #10321, #10285, #9895, #10395, #10263, #10293, #10210, #10302, #10206, #9858, #10045, and #9840. [Less]

Hi *, It's been a few weeks since the last news bulletin - this is the result of mostly quietness on behalf of the list and developers, and some sickness on behalf of your editor for several days there. But now there's actually some things to ... [More] write here! The past few weeks, GHC HQ has been having some quiet meetings mostly about bugfixes for a 7.10.2 release - as well as noodling about compiler performance. Austin has begun compiling his preliminary notes on the wiki, under the CompilerPerformance page, where we'll be trying to keep track of the ongoing performance story. Hopefully, GHC 7.12.1 will boast a bit better performance numbers. There are a lot of users who are interested in this particular pain point, so please file tickets and CC yourself on bugs (like #10370), or feel free to help out! 7.10.2 status There's been a bit of chatter about the lists about something on many peoples mind: the release of GHC 7.10.2. Most prominently, Mark Lentczner popped in to ask when the next GHC release will happen - in particular, he'd like to make a Haskell Platform release in lockstep with it (see below for a link to Mark's email). Until recently, the actual desire for 7.10.2 wasn't totally clear, and at this point, GHC HQ hasn't firmly committed to the 7.10.2 release date. But if milestone:7.10.2 is any indicator, we've already closed over three dozen bugs, several of them high priority - and they keep coming in. So it seems likely people will want these fixes in their hands relatively soon. Just remember: if you need a fix for 7.10.2, or have a bug you need us to look at, please email the ghc-devs list, file a ticket, and get our attention! Just be sure to set the milestone to 7.10.2. List chatter Herbert Valerio Riedel opened an RFC about a regression in GHC 7.10 relating to the update to Unicode 7. Any input from users of international languages or unicode users would be appreciated! ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008930.html Herbert Valerio Riedel also asked about a new C pre-processor implementation for GHC - but in particular, adopting the extant cpphs into the GHC codebase for this task itself. ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008934.html Austin Seipp emailed ghc-devs about the HCAR report, for which the GHC entry is due May 17th! Developers should get their edits in quickly. ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008939.html Joachim Breitner asks if the branchless implementation for our literal cases are worth it for their complexity. There were some interesting responses, including some remarks on the V8 JavaScript compiler. ​https://mail.haskell.org/pipermail/ghc-devs/2015-April/008852.html Niklas Hambüchen announced that he's backported the recent lightweight stack-trace support in GHC HEAD to GHC 7.10 and GHC 7.8 - meaning that users of these stable release can have informative call stack traces, even without profiling! FP Complete was interested in this feature, so they'd probably love to hear user input. ​https://mail.haskell.org/pipermail/ghc-devs/2015-April/008862.html David Terei has written up a proposal on reconciling the existence of Roles with Safe Haskell, which caused us a lot of problems during the 7.8 release cycle. In particular, concerning the ability to break module abstractions and requiring programmers to safeguard abstractions through careful use of roles - and David's written a proposal to address that. ​https://mail.haskell.org/pipermail/ghc-devs/2015-April/008902.html Mark Lentczner started a thread about the 7.10.2 release schedule - because this time, he wants to do a concurrent Haskell Platform release! The thread ended up with a good amount of discussion concerning if 7.10.2 is even needed - but at this rate, it looks like it will ship sometime soon. ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008904.html Mateusz Kowalczyk posted to ghc-devs hoping to get some help with a tricky, long-standing issue: #4012, which concerns the determinism of GHC binaries. It turns out GHC isn't entirely deterministic when it calculates package IDs, meaning things get really bad when you mix prebuilt binary packages for systems. This in particular has become a real problem for the Nix package manager and users of Haskell applications. Mateusz asks if anyone would be willing to help look into it - and a lot of people would appreciate the help! ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008992.html Noteworthy commits Commit f2d1b7fcbbc55e33375a7321222a9f4ee189aa38 - Support unboxing for GADT product types. Commit 51af102e5c6c56e0987432aa5a21fe10e24090e9 - Better hints when RTS options are not available. Commit 524ddbdad5816f77b7b719cac0671eebd3473616 - Make sure GHC.List.last is memory-efficient. Commit a1275a762ec04c1159ae37199b1c8f998a5c5499 - Improve improvement in the constraint solver. Commit 4efa421327cf127ebefde59b2eece693e37dc3c6 - Permit empty closed type families. Commit 477f514f6ebcf783810da93e2191e4b6ea65559b - rts: add "-no-rtsopts-suggestions" option Commit cf7573b8207bbb17c58612f3345e0b17d74cfb58 - More accurate allocation stats for :set +s Commit c4e8097ea8dd6e43eae7aadd6bae7e13272ba74d - Bump base version to 4.8.2.0 Commit 0bbc2ac6dae9ce2838f23a75a6a989826c06f3f5 - Use the gold linker for aarch64/linux (#9673) Commit 1e8c9b81a819da8eb54405a029fc33a9f5220321 - Enable SMP and GHCi support for AArch64 Closed tickets #10293, #10273, #10021, #10209, #10255, #10326, #9745, #10314, #8928, #8743, #10182, #10281, #10325, #10297, #10292, #10304, #10260, #9204, #10121, #10329, #9920, #10308, #10234, #10356, #10351, #10364, #9564, #10306, #10108, #9581, #10369, #9673, #10288, #10260, #10363, #10315, #10389, #9929, #10384, #10382, #10400, #10256, #10254, #10277, #10299, #10268, #10269, #10280, #10312, #10209, #10109, #10321, #10285, #9895, #10395, #10263, #10293, #10210, #10302, #10206, #9858, #10045, and #9840. [Less]

Hi *, It's been a few weeks since the last news bulletin - this is the result of mostly quietness on behalf of the list and developers, and some sickness on behalf of your editor for several days there. But now there's actually some things to ... [More] write here! The past few weeks, GHC HQ has been having some quiet meetings mostly about bugfixes for a 7.10.2 release - as well as noodling about compiler performance. Austin has begun compiling his preliminary notes on the wiki, under the CompilerPerformance page, where we'll be trying to keep track of the ongoing performance story. Hopefully, GHC 7.12.1 will boast a bit better performance numbers. There are a lot of users who are interested in this particular pain point, so please file tickets and CC yourself on bugs (like #10370), or feel free to help out! 7.10.2 status There's been a bit of chatter about the lists about something on many peoples mind: the release of GHC 7.10.2. Most prominently, Mark Lentczner popped in to ask when the next GHC release will happen - in particular, he'd like to make a Haskell Platform release in lockstep with it (see below for a link to Mark's email). Until recently, the actual desire for 7.10.2 wasn't totally clear, and at this point, GHC HQ hasn't firmly committed to the 7.10.2 release date. But if milestone:7.10.2 is any indicator, we've already closed over three dozen bugs, several of them high priority - and they keep coming in. So it seems likely people will want these fixes in their hands relatively soon. Just remember: if you need a fix for 7.10.2, or have a bug you need us to look at, please email the ghc-devs list, file a ticket, and get our attention! Just be sure to set the milestone to 7.10.2. List chatter Herbert Valerio Riedel opened an RFC about a regression in GHC 7.10 relating to the update to Unicode 7. Any input from users of international languages or unicode users would be appreciated! ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008930.html Herbert Valerio Riedel also asked about a new C pre-processor implementation for GHC - but in particular, adopting the extant cpphs into the GHC codebase for this task itself. ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008934.html Austin Seipp emailed ghc-devs about the HCAR report, for which the GHC entry is due May 17th! Developers should get their edits in quickly. ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008939.html Joachim Breitner asks if the branchless implementation for our literal cases are worth it for their complexity. There were some interesting responses, including some remarks on the V8 JavaScript compiler. ​https://mail.haskell.org/pipermail/ghc-devs/2015-April/008852.html Niklas Hambüchen announced that he's backported the recent lightweight stack-trace support in GHC HEAD to GHC 7.10 and GHC 7.8 - meaning that users of these stable release can have informative call stack traces, even without profiling! FP Complete was interested in this feature, so they'd probably love to hear user input. ​https://mail.haskell.org/pipermail/ghc-devs/2015-April/008862.html David Terei has written up a proposal on reconciling the existence of Roles with Safe Haskell, which caused us a lot of problems during the 7.8 release cycle. In particular, concerning the ability to break module abstractions and requiring programmers to safeguard abstractions through careful use of roles - and David's written a proposal to address that. ​https://mail.haskell.org/pipermail/ghc-devs/2015-April/008902.html Mark Lentczner started a thread about the 7.10.2 release schedule - because this time, he wants to do a concurrent Haskell Platform release! The thread ended up with a good amount of discussion concerning if 7.10.2 is even needed - but at this rate, it looks like it will ship sometime soon. ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008904.html Mateusz Kowalczyk posted to ghc-devs hoping to get some help with a tricky, long-standing issue: #4012, which concerns the determinism of GHC binaries. It turns out GHC isn't entirely deterministic when it calculates package IDs, meaning things get really bad when you mix prebuilt binary packages for systems. This in particular has become a real problem for the Nix package manager and users of Haskell applications. Mateusz asks if anyone would be willing to help look into it - and a lot of people would appreciate the help! ​https://mail.haskell.org/pipermail/ghc-devs/2015-May/008992.html Noteworthy commits Commit f2d1b7fcbbc55e33375a7321222a9f4ee189aa38 - Support unboxing for GADT product types. Commit 51af102e5c6c56e0987432aa5a21fe10e24090e9 - Better hints when RTS options are not available. Commit 524ddbdad5816f77b7b719cac0671eebd3473616 - Make sure GHC.List.last is memory-efficient. Commit a1275a762ec04c1159ae37199b1c8f998a5c5499 - Improve improvement in the constraint solver. Commit 4efa421327cf127ebefde59b2eece693e37dc3c6 - Permit empty closed type families. Commit 477f514f6ebcf783810da93e2191e4b6ea65559b - rts: add "-no-rtsopts-suggestions" option Commit cf7573b8207bbb17c58612f3345e0b17d74cfb58 - More accurate allocation stats for :set +s Commit c4e8097ea8dd6e43eae7aadd6bae7e13272ba74d - Bump base version to 4.8.2.0 Commit 0bbc2ac6dae9ce2838f23a75a6a989826c06f3f5 - Use the gold linker for aarch64/linux (#9673) Commit 1e8c9b81a819da8eb54405a029fc33a9f5220321 - Enable SMP and GHCi support for AArch64 Closed tickets #10293, #10273, #10021, #10209, #10255, #10326, #9745, #10314, #8928, #8743, #10182, #10281, #10325, #10297, #10292, #10304, #10260, #9204, #10121, #10329, #9920, #10308, #10234, #10356, #10351, #10364, #9564, #10306, #10108, #9581, #10369, #9673, #10288, #10260, #10363, #10315, #10389, #9929, #10384, #10382, #10400, #10256, #10254, #10277, #10299, #10268, #10269, #10280, #10312, #10209, #10109, #10321, #10285, #9895, #10395, #10263, #10293, #10210, #10302, #10206, #9858, #10045, and #9840. [Less]