[ANNOUNCE] GHC 8.4.2-rc1 now available

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[ANNOUNCE] GHC 8.4.2-rc1 now available

Ben Gamari-3
Hello everyone,

The GHC team is proud to announce the first release candidate of 8.4.2.
the source distribution, binary distributions, and documentation are
available at

    https://downloads.haskell.org/~ghc/8.4.2-rc1

This release follows so closely to 8.4.1 due to a number last-minute
bug-fixes that didn't quite make it into 8.4.1. This includes fixes for:

 * #14705, the interpreter being broken on some systems
 * #14779, where the compiler produces invalid code when used with -g
 * #14891, where a selection of GHC testsuite cases fail on OS X
 * #5129, where the simplifier would incorrectly reorder evaluation in
   under some conditions.

Since this is a relatively small bugfix release we are bypassing the
alpha releases and moving right to the release candidate stage. If all
goes well the final release will be cut next week.

Happy testing

Cheers,

- Ben

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Re: [Haskell-cafe] [ANNOUNCE] GHC 8.4.2-rc1 now available

Gershom Bazerman
Thanks for the announcement, Ben. Since cabal-install 2.2 was just released, we were planning a new Haskell Platform release Any Day Now (tm). But given the impending 8.4.2 release, I think we will hold off until it lands.

Cheers,
Gershom


On April 1, 2018 at 5:07:35 PM, Ben Gamari ([hidden email]) wrote:

Hello everyone,

The GHC team is proud to announce the first release candidate of 8.4.2.
the source distribution, binary distributions, and documentation are
available at

https://downloads.haskell.org/~ghc/8.4.2-rc1

This release follows so closely to 8.4.1 due to a number last-minute
bug-fixes that didn't quite make it into 8.4.1. This includes fixes for:

* #14705, the interpreter being broken on some systems
* #14779, where the compiler produces invalid code when used with -g
* #14891, where a selection of GHC testsuite cases fail on OS X
* #5129, where the simplifier would incorrectly reorder evaluation in
under some conditions.

Since this is a relatively small bugfix release we are bypassing the
alpha releases and moving right to the release candidate stage. If all
goes well the final release will be cut next week.

Happy testing

Cheers,

- Ben
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Re: [Haskell-cafe] [ANNOUNCE] GHC 8.4.2-rc1 now available

Ben Gamari-3
Gershom B <[hidden email]> writes:

> Thanks for the announcement, Ben. Since cabal-install 2.2 was just
> released, we were planning a new Haskell Platform release Any Day Now
> (tm). But given the impending 8.4.2 release, I think we will hold off
> until it lands.
>
Yes, I think that is probably best; 8.4.1 is just broken enough that I
would prefer if we would avoid pushing it out any more widely than
necessary.

Cheers,

- Ben

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Re: [ANNOUNCE] GHC 8.4.2-rc1 now available

Wolfgang Jeltsch-3
In reply to this post by Ben Gamari-3
Am Sonntag, den 01.04.2018, 17:05 -0400 schrieb Ben Gamari:
> Hello everyone,
>
> The GHC team is proud to announce the first release candidate of
> 8.4.2.
> the source distribution, binary distributions, and documentation are
> available at
>
>     https://downloads.haskell.org/~ghc/8.4.2-rc1

Hi!

Unfortunately, this release candidate cannot build
order-maintenance-0.2.1.0. When trying, the “impossible” happens.
The full output is below. I’ll file a bug report soon.

Any chance that this will be fixed before the 8.4.2 release?

All the best,
Wolfgang

Full output:

> [ 1 of 21] Compiling Data.Order.Algorithm.Raw ( src/library/Data/Order/Algorithm/Raw.hs, /home/wolfgang/Entwicklung/Haskell/order-maintenance-0.2.1.0/dist-newstyle/build/x86_64-linux/ghc-8.4.1.20180329/order-maintenance-0.2.1.0/build/Data/Order/Algorithm/Raw.o )
> [ 2 of 21] Compiling Data.Order.Algorithm.Raw.DietzSleatorAmortizedLog ( src/library/Data/Order/Algorithm/Raw/DietzSleatorAmortizedLog.hs, /home/wolfgang/Entwicklung/Haskell/order-maintenance-0.2.1.0/dist-newstyle/build/x86_64-linux/ghc-8.4.1.20180329/order-maintenance-0.2.1.0/build/Data/Order/Algorithm/Raw/DietzSleatorAmortizedLog.o )
> ghc: panic! (the 'impossible' happened)
>   (GHC version 8.4.1.20180329 for x86_64-unknown-linux):
> StgCmmEnv: variable not found
>   x_a46z
>   local binds for:
>   $tc'Label
>   $tcLabel
>   $tc'Cell
>   $tcCell
>   $trModule
>   $tc'Cell1
>   $tc'Cell2
>   $tc'Cell3
>   $trModule1
>   $trModule2
>   $trModule3
>   $trModule4
>   $tc'Label1
>   $tc'Label2
>   $tc'Label3
>   $tcCell1
>   $tcCell2
>   $tcLabel1
>   $tcLabel2
>   lvl_r4UD
>   lvl1_r4UE
>   lvl2_r4UF
>   lvl3_r4UG
>   lvl4_r4UH
>   lvl5_r4UI
>   lvl6_r4UJ
>   lvl7_r4UK
>   lvl8_r4UL
>   lvl9_r4UM
>   lvl10_r4UN
>   lvl11_r4UO
>   lvl12_r4UP
>   lvl13_r4UQ
>   lvl14_r4UR
>   lvl15_r4US
>   lvl16_r4UT
>   lvl17_r4UU
>   $krep_r4UV
>   $krep1_r4UW
>   $krep2_r4UX
>   lvl18_r4UY
>   $krep3_r4UZ
>   $krep4_r4V0
>   $krep5_r4V1
>   $krep6_r4V2
>   $krep7_r4V3
>   $krep8_r4V4
>   $krep9_r4V5
>   lvl19_r4V6
>   lvl20_r4V7
>   lvl21_r4V8
>   lvl22_r4V9
>   lvl23_r4Va
>   lvl24_r4Vb
>   lvl25_r4Vc
>   ww_s4W2
>   lwild_s4W3
>   lwild1_s4W4
>   noOfLabels_s4W5
>   noOfLabels1_s4W6
>   labelMask_s4W7
>   $wnewAfterCell_s4Wa
>   ww1_s4Wb
>   ipv1_s4Wf
>   wild_s4Wg
>   ds_s4Wh
>   ds2_s4Wi
>   ww2_s4Wk
>   ww3_s4Wl
>   ww4_s4Wn
>   ww5_s4Wo
>   wild1_s4Wq
>   smallGap_s4Wr
>   wild2_s4Ws
>   Call stack:
>       CallStack (from HasCallStack):
>         callStackDoc, called at compiler/utils/Outputable.hs:1150:37 in ghc:Outputable
>         pprPanic, called at compiler/codeGen/StgCmmEnv.hs:149:9 in ghc:StgCmmEnv
>
> Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug
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Re: [ANNOUNCE] GHC 8.4.2-rc1 now available

Wolfgang Jeltsch-3
Am Donnerstag, den 05.04.2018, 23:37 +0300 schrieb Wolfgang Jeltsch:

> Am Sonntag, den 01.04.2018, 17:05 -0400 schrieb Ben Gamari:
> >
> > Hello everyone,
> >
> > The GHC team is proud to announce the first release candidate of
> > 8.4.2.
> > the source distribution, binary distributions, and documentation are
> > available at
> >
> >     https://downloads.haskell.org/~ghc/8.4.2-rc1
>
> Hi!
>
> Unfortunately, this release candidate cannot build
> order-maintenance-0.2.1.0. When trying, the “impossible” happens.
> The full output is below. I’ll file a bug report soon.

The ticket number is #15005.

By the way, this problem also exists with GHC 8.4.1.

All the best,
Wolfgang
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