April 2014 - ghc-devs

RE: Haskell Support on Windows (Simon Peyton Jones)
by Tamar Christina 04 Apr '14

04 Apr '14

I've been meaning to start contributing to ghc for windows for years but never got around to it since I don't know what I could contribute with. I've compiled various 6.x and early 7.x versions before and mostly did small modifications for my own testing. I've been away from Haskell for a few months, but I've been meaning to come back and I'm willing to contribute with what I can :) ------------------------------ From: Carter Schonwald <carter.schonwald(a)gmail.com> Sent: 01/04/2014 15:26 To: Simon Peyton Jones <simonpj(a)microsoft.com> Cc: ghc-devs(a)haskell.org; Kyle Van Berendonck <kvanberendonck(a)gmail.com> Subject: Re: Haskell Support on Windows (Simon Peyton Jones) Kyle, we need you to help us with windows support! :-) On Tuesday, April 1, 2014, Simon Peyton Jones <simonpj(a)microsoft.com> wrote: > A couple of poor assumptions are made here. > > > > I'm not sure where "here" is. In my email I specifically said exactly > what you are saying (only I was not as eloquent as you). > > > > What we need is some developers who are willing to give some love and > support to the Windows version of GHC. And *they* really are thin on the > ground, unfortunately. > > > > Simon > > > > *From:* ghc-devs [mailto:ghc-devs-bounces@haskell.org<javascript:_e(%7B%7D,'cvml','ghc-devs-bounces(a)haskell.org');>] > *On Behalf Of *Kyle Van Berendonck > *Sent:* 01 April 2014 13:54 > *To:* ghc-devs(a)haskell.org<javascript:_e(%7B%7D,'cvml','ghc-devs(a)haskell.org');> > *Subject:* Re: Haskell Support on Windows (Simon Peyton Jones) > > > > A couple of poor assumptions are made here. > > The first is that the userbase of GHC on Windows is poor. This is false. > In fact, the poor state of Windows is mentioned on #haskell more frequently > as of late. In the last week I've talked almost every day to (different) > people who have had Windows woes with using GHC. The hacker-base isn't here > at the moment - I agree, but the user-base most certainly is. Could this be > a problem with the demographic, or could it just be that Windows > development isn't inviting? The build system and default test failures > in-particular are a source of discouragement. > > The second assumption is that GHC/Haskell will be worth a dime in the > RealWorld without Windows as a primary tier platform. I'm going to put a > crude guess that given the overwhelming magnitude of C#/F# coming up on my > local careers portal that there's far more industry on Windows than on OSX > or Linux. Those are all the businesses where the probability that they will > ever touch Haskell goes from `probably not right now` to `impossible`. Let > me also remind you that Windows still holds 89.2% of operating system > market share ie the people that hackers and developers actually have to > deploy their applications to. > > Sorry to sound fumey, but there's all this suggesting that everyone would > have a better day if we dropped Windows (let's be honest, if it wasn't a > primary tier platform nobody would have fixed it for 7.8), but I doubt few > of the people who think it's a "great idea" or sslt have actually thought > through whether it's the best thing for Haskell or just the best thing to > get 7.8 into their hands a couple weeks sooner. > > Regards. >

1 0

Fwd: Trying to compile GHC under Ubuntu as a cross-compiler for ARM
by eng. Vassil Ognyanov Keremidchiev 03 Apr '14

03 Apr '14

Hello! Could someone help me with compiling GHC under Ubuntu as a ARM cross-compiler? Currently I have done those steps: sudo apt-get update sudo apt-get install autoconf alex happy libtool autopoint zlib1g-dev libncurses5-dev ghc-haddock sudo export PATH=~/.cabal/bin:$PATH sudo cabal install --reinstall happy alex terminfo libffi html regex-compat git clone http://darcs.haskell.org/ghc.git cd ghc ./sync-all --no-dph get ./sync-all pull ./boot sudo ./configure --target=arm-linux-gnueabi --enable-unregisterised cp mk/build.mk.sample mk/build.mk # here I enable quick-cross configuration sudo make and I get: echo "compiler_stage1_depfile_c_asm_EXISTS = YES" >> compiler/stage1/build/.depend-v.c_asm.tmp mv compiler/stage1/build/.depend-v.c_asm.tmp compiler/stage1/build/.depend-v.c_asm inplace/bin/deriveConstants --gen-header -o includes/dist-derivedconstants/header/DerivedConstants.h --tmpdir includes/dist-derivedconstants/header/ --gcc-program "/usr/bin/gcc" --gcc-flag -fno-stack-protector --gcc-flag -Iincludes --gcc-flag -Iincludes/dist --gcc-flag -Iincludes/dist-derivedconstants/header --gcc-flag -Iincludes/dist-ghcconstants/header --gcc-flag -Irts --gcc-flag -fcommon --nm-program "/usr/bin/arm-linux-gnueabi-nm" /usr/bin/arm-linux-gnueabi-nm: includes/dist-derivedconstants/header/tmp.o: File format not recognized deriveConstants: readProcess: /usr/bin/arm-linux-gnueabi-nm "includes/dist-derivedconstants/header/tmp.o" (exit 1): failed make[1]: *** [includes/dist-derivedconstants/header/DerivedConstants.h] Error 1 make: *** [all] Error 2 What I have done wrong? I did not understand the error message well, too.

3 13

Re: Haskell Support on Windows (Simon Peyton Jones)
by Carter Schonwald 03 Apr '14

03 Apr '14

Hey roman! If you get stuck getting ghc to build on windows, please ask for help on the ghc mailing lists and/or on the #ghc channel on freenode. Just having more folks that regularly try to build and use ghc on windows would be huge. There's also countless ways to contrib To ghc too. On Tuesday, April 1, 2014, Roman Kuznetsov <kuznero(a)hotmail.com> wrote: > Hello, > > -- sorry for incomplete email - typing from mobile is not easy :) > > I would like to participate in GHC on Windows. But I am a normal windows > developer and don't know much of that rather weird (to me) tool chain used > in this case. I frankly tried a few times before - every time with the same > result - I never get to the point, but trying to understand just how to > build it. I know there is a wiki, etc. > > But my question (and the reason I write here): is it possible to have some > kind of mini-course, a crush-course on developing GHC on Windows (as well > as on other platforms) - video course ... this is what comes to mind after > all these Coursera, Pluralsight, etc. > > You could say - there is a wiki. But that's not enough. Maybe it's just > me... I will take another analogy. Even though I'm coding for Windows > primarily, I am a linux user. So, I switched from Ubuntu to Arch Linux > recently which was possible due to the quality of their wiki documentation > (Arch is known to not be as user friendly as *buntu like systems). > > Sorry for not referring to any concrete problems, I just tried stating > what I think didn't let me start working with that. > > /Roman > > On 01 апр. 2014 г., at 15:26, "Carter Schonwald" < > carter.schonwald(a)gmail.com<javascript:_e(%7B%7D,'cvml','carter.schonwald(a)gmail.com');>> > wrote: > > Kyle, we need you to help us with windows support! :-) > > On Tuesday, April 1, 2014, Simon Peyton Jones <simonpj(a)microsoft.com<javascript:_e(%7B%7D,'cvml','simonpj(a)microsoft.com');>> > wrote: > > A couple of poor assumptions are made here. > > > > I’m not sure where “here” is. In my email I specifically said exactly > what you are saying (only I was not as eloquent as you). > > > > What we need is some developers who are willing to give some love and > support to the Windows version of GHC. And *they* really are thin on the > ground, unfortunately. > > > > Simon > > > > *From:* ghc-devs [mailto:ghc-devs-bounces@haskell.org] *On Behalf Of *Kyle > Van Berendonck > *Sent:* 01 April 2014 13:54 > *To:* ghc-devs(a)haskell.org > *Subject:* Re: Haskell Support on Windows (Simon Peyton Jones) > > > > A couple of poor assumptions are made here. > > The first is that the userbase of GHC on Windows is poor. This is false. > In fact, the poor state of Windows is mentioned on #haskell more frequently > as of late. In the last week I've talked almost every day to (different) > people who have had Windows woes with using GHC. The hacker-base isn't here > at the moment - I agree, but the user-base most certainly is. Could this be > a problem with the demographic, or could it just be that Windows > development isn't inviting? The build system and default test failures > in-particular are a source of discouragement. > > The second assumption is that GHC/Haskell will be worth a dime in the > RealWorld without Windows as a primary tier platform. I'm going to put a > crude guess that given the overwhelming magnitude of C#/F# coming up on my > local careers portal that there's far more industry on Windows than on OSX > or Linux. Those are all the businesses where the probability that they will > ever touch Haskell goes from `probably not right now` to `impossible`. Let > me also remind you that Windows still holds 89.2% of operating system > market share ie the people that hackers and developers actually have to > deploy their applications to. > > Sorry to sound fumey, but there's all this suggesting that everyone would > have a better day if we dropped Windows (let's be honest, if it wasn't a > primary tier platform nobody would have fixed it for 7.8), but I doubt few > of the people who think it's a "great idea" or sslt have actually thought > through whether it's the best thing for Haskell or just the best thing to > get 7.8 into their hands a couple weeks sooner. > > Regards. > > _______________________________________________ > ghc-devs mailing list > ghc-devs(a)haskell.org<javascript:_e(%7B%7D,'cvml','ghc-devs(a)haskell.org');> > http://www.haskell.org/mailman/listinfo/ghc-devs > > > _______________________________________________ ghc-devs mailing list > ghc-devs(a)haskell.org<javascript:_e(%7B%7D,'cvml','ghc-devs(a)haskell.org');> > http://www.haskell.org/mailman/listinfo/ghc-devs >

2 1

Newcomer Contribution
by Jim Perry 03 Apr '14

03 Apr '14

Hello, I am wanting to get involved in GHC development and I thought I'd help out with one of the noob tickets to get more experience. I though I would tackle #2258/#4114. I would be grateful for any advice/guidance for a kick-start. Cheers, Jim

2 1

GHC Trac donw
by Simon Peyton Jones 03 Apr '14

03 Apr '14

Accessing the GHC Trac yields https://ghc.haskell.org/trac/ghc/ Error TracError: The Trac Environment needs to be upgraded. Run "trac-admin /home/trac/ghc upgrade" Simon

2 1

RE: [GHC] #8953: Inner Thigh Slimming Exercises for Women
by Simon Peyton Jones 03 Apr '14

03 Apr '14

Folks, The GHC Trac is attracting spam. Does anyone know enough to stop it? Simon | -----Original Message----- | From: ghc-tickets [mailto:ghc-tickets-bounces@haskell.org] On Behalf Of | GHC | Sent: 03 April 2014 05:26 | Cc: ghc-tickets(a)haskell.org | Subject: [GHC] #8953: Inner Thigh Slimming Exercises for Women | | #8953: Inner Thigh Slimming Exercises for Women | ------------------------------------+----------------------------------- | ------------------------------------+-- | Reporter: szxdai1 | Owner: | Type: bug | Status: new | Priority: normal | Milestone: | Component: Compiler | 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: | | ------------------------------------+----------------------------------- | ------------------------------------+-- | How To Decline Thigh Coefficient or retrogress weight swift around your | thighs offers quite a bit to do with intrinsic helping slimming | exercises. | The easiest method to worsen weight from your thighs would be to do | exercises that aim your minify body. Inside serving slimming workouts | are those workouts that mostly rivet on the fat around your exclusive | thighs. | Virtuous some any portion training contributes to losing helping | coefficient mostly. When you essential to worsen coefficient around your | privileged thighs and immobile up, You may penury to accomplish several | special exercises that alter on this region. I am achievement to part | with you two of the most operative helping slimming exercises. | [http://tryabsolutegarciniacambogia.com/ ABSOLUTE GARCINIA CAMBOGIA] | Decline unit accelerated Around Your Thighs Workouts Leg Butterfly | Broad: -This use works rise for broad the intrinsical thighs, Making | yourself solon elastic and in acquisition it helps with the toning of | the thighs. To perform this workout, You instrument hump to sit on a | carpeted story after which juncture your soles from the feet together. | Your legs is accomplishment to be unstoppered but both of the feet | instrument attack apiece other. When you're in this berth, Countenance | the knees to alter to the flooring. Lessen your knees towards the | flooring as much as you can for the way pliable you are. Spell | performing this recitation, rub both hands stretchability around your | privileged thighs. | Intrinsical Serving Firmer Workout: -You give feature to fulfill this | helping slimming learn part a small layer and also be certain you | somebody a towel or a dinky wide to relax your brain on. To fulfil this | workout, Lie in your sinistral indorse and urinate careful your surface | is resting on a folded departed towel or bittie encompassing. This | truly is to coil. | And protect your manus leg change to the base, Slowly flex the best leg | towards the deceiver individuals. Now you gift essential to uprise your | unexhausted leg for active six inches off the level and suppress it for | many transactions. Then petty it to the turn item and now cultivate it | as existence presently as it touches the mat {other tract endorse. Do | that sleazy portion workout on the sides with the similar repeating. | These serving slimming workouts are painless to fulfil and they could | be comfortably through from the status of your own asylum. If you are | disagreeable to chant up and get narrow thighs, Then I suggest that you | do aerophilic exercises too. Recollect your fasting as what you eat | counts for your upbeat too. For statesman useful message on how to | retrograde serving coefficient in the subordinate part of your body, | Impose Privileged helping slimming exercises beneath. Recede metric | firm around your thighs is about punish in both consumption a growing | fasting organisation and regular workout.'''ABSOLUTE GARCINIA | CAMBOGIA''' | Decline metric allegro around your thighs else finest workouts which | are outgo extricated permit functional, Jogging and aquatics. They are | fun to do exercises that you ought to sicken benefit of. Don't think | that visiting the gym is the exclusive way to total serving slimming | exercises. | Keep your expensive gym body money and remain physically energetic by | exertion from base and doing fun aerophilous workouts inaccurate. | http://tryabsolutegarciniacambogia.com/ | | -- | Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8953> | GHC <http://www.haskell.org/ghc/> | The Glasgow Haskell Compiler | _______________________________________________ | ghc-tickets mailing list | ghc-tickets(a)haskell.org | http://www.haskell.org/mailman/listinfo/ghc-tickets

1 0

RE: Buildbots
by Simon Peyton Jones 01 Apr '14

01 Apr '14

Friends The nightly-build infrastructure for GHC is in disarray, and we could really do with help. We really want * Continuous integration so that new test failures show up fast * Nightly builds on a variety of platforms, giving snapshots that are easy to install Originally we used Buildbot (http://buildbot.net/) Then in 2010 Ian Lynagh put a lot of work into a build-bot infrastructure, implemented in Haskell as an open-source project, GHC Builder (https://ghc.haskell.org/trac/ghc/wiki/Builder). See https://ghc.haskell.org/trac/ghc/wiki/Status/Apr10#Nightlybuilds for the reasoning at the time. As I understand it, Builder never "caught fire", and now that Ian has moved on I don't know that anyone is maintaining it; nor are the various builders working so far as I know. Perhaps competing technology has moved on, so that the original rationale no longer holds? I'm not sure. Regardless, we lack leadership in this area. Joachim Breitner has set up Travis-CI. (I don't know exactly what that is, but it sounds useful.) Others have indicated interest/willingness. But it would be fantastic to have a person, or (more plausibly) a small group who assumed leadership. An early question would be: to continue to use a DIY system (Builder), or to move to some other better-supported (but perhaps less malleable) system. I don't even know what the options are. Others will be better informed than me about all this... we'd love to hear from you. Thank you! Simon | -----Original Message----- | From: Glasgow-haskell-users [mailto:glasgow-haskell-users- | bounces(a)haskell.org] On Behalf Of harry | Sent: 01 April 2014 08:42 | To: glasgow-haskell-users(a)haskell.org | Subject: Buildbots | | It having been suggested that a buildbot for Windows may be needed, and | it | being possible that I may receive permission from management for setting | one | up in my department's server room, I set about attempting to discover | what | this actually entails. | | A Google search led me to https://ghc.haskell.org/trac/ghc/wiki/BuildBot, | which tells me that "Buildbot is currently down, and we are working on a | replacement. See Builder for more details." If I follow the 'down' link , | I | get to the GHC status April 2010 page, which says that buildbot has been | abandoned, suggesting that the page should be deleted. Could someone | confirm | before I go ahead and delete it? | | The Builder page has clear instructions on how to set up a build slave, | and | a link to the build results. The build results contains an assortment of | dud | links and builds from August and earlier. | | What is the current state of automated builds? | | | | -- | View this message in context: | http://haskell.1045720.n5.nabble.com/Buildbots-tp5746770.html | Sent from the Haskell - Glasgow-haskell-users mailing list archive at | Nabble.com. | _______________________________________________ | Glasgow-haskell-users mailing list | Glasgow-haskell-users(a)haskell.org | http://www.haskell.org/mailman/listinfo/glasgow-haskell-users

11 24

Re: Haskell Support on Windows (Simon Peyton Jones)
by Kyle Van Berendonck 01 Apr '14

01 Apr '14

A couple of poor assumptions are made here. The first is that the userbase of GHC on Windows is poor. This is false. In fact, the poor state of Windows is mentioned on #haskell more frequently as of late. In the last week I've talked almost every day to (different) people who have had Windows woes with using GHC. The hacker-base isn't here at the moment - I agree, but the user-base most certainly is. Could this be a problem with the demographic, or could it just be that Windows development isn't inviting? The build system and default test failures in-particular are a source of discouragement. The second assumption is that GHC/Haskell will be worth a dime in the RealWorld without Windows as a primary tier platform. I'm going to put a crude guess that given the overwhelming magnitude of C#/F# coming up on my local careers portal that there's far more industry on Windows than on OSX or Linux. Those are all the businesses where the probability that they will ever touch Haskell goes from `probably not right now` to `impossible`. Let me also remind you that Windows still holds 89.2% of operating system market share ie the people that hackers and developers actually have to deploy their applications to. Sorry to sound fumey, but there's all this suggesting that everyone would have a better day if we dropped Windows (let's be honest, if it wasn't a primary tier platform nobody would have fixed it for 7.8), but I doubt few of the people who think it's a "great idea" or sslt have actually thought through whether it's the best thing for Haskell or just the best thing to get 7.8 into their hands a couple weeks sooner. Regards.

3 2

RE: Haskell Support on Windows
by Simon Peyton Jones 01 Apr '14

01 Apr '14

| I've been getting the impression that a lot of the stickier GHC bugs are | Windows specific, while very few GHC hackers actually use Windows, other | than to ensure that GHC works on it. ... | Perhaps it should be "demoted" to second-tier GHC support as well, at | least to the extent that Windows bugs won't hold up a release? That's true. But many, many people *use* GHC on Windows. It would be terribly sad to abandon them. What we need is more developers to volunteer to help look after the Windows version of GHC. One or two are doing so, but we need more. Please! Simon

1 0