RE: Windows build failing in a new way

2017-03-10 Thread Simon Peyton Jones via ghc-devs
Actually it asked me thus:

Error:

Needed msys2 tarballs are missing. You have a few options to get them,



  * run configure with the --enable-tarballs-autodownload option

So I did as requested and ran configure with that flag.  Success:

checking for path to top of build tree... C:/code/HEAD

configure: Checking for Windows toolchain tarballs...

 100.0%

configure: Extracting Windows toolchain from archives (may take a while)...

configure: In-tree MingW-w64 tree created

configure: Making in-tree perl tree

configure: In-tree perl tree created

checking whether the C compiler works... yes

checking for C compiler default output file name... a.exe

Then I validated from scratch

sh validate --fast

and got the error I reported.

I suppose I could delete ghc-tarballs and try again.  I’ll do that when I’m 
next connected.

In case it  helps, the lines in unix64.S that are being rejected are

  .type  ffi_call_unix64,@function

…

  .sizeffi_call_unix64,.-ffi_call_unix64

..

  .type ffi_closure_unix64,@function

…

  .size ffi_closure_unix64,.-ffi_closure_unix64

…

  .section  .eh_frame,"a",@progbits

Simon

From: Phyx [mailto:loneti...@gmail.com]
Sent: 09 March 2017 16:38
To: Simon Peyton Jones <simo...@microsoft.com>; ghc-devs@haskell.org
Subject: Re: Windows build failing in a new way


Hi Simon,

As of this morning the Windows build was working fine 
https://github.com/Mistuke/GhcWindowsBuild/commit/aa6906b2535224721d8b049cee3edcd938c3e951
 those are my nightly logs for last night at commit a02b80f

That error seems to be coming from gcc and not ghc. We did update the crt and 
maybe the scripts didn't do the right thing. Could you try nuking ghc-tarballs 
and trying again? Of course running with - -enable-tarballs-autodownloads on.

Tamar

On Thu, 9 Mar 2017, 16:28 Simon Peyton Jones via ghc-devs, 
<ghc-devs@haskell.org<mailto:ghc-devs@haskell.org>> wrote:
My windows build is more broken than usual.  I can’t even build a GHC.
Please, could someone fix this?  I’m getting desperate.
Simon


libtool: compile:  C:/code/HEAD/inplace/mingw/bin/gcc.exe -DHAVE_CONFIG_H -I. 
-I.. -I. -I../include -Iinclude -I../src -Wall -Werror -fno-stack-protector -w 
-fexceptions -MT src/x86/ffi64.lo -MMD -MP -MF src/x86/.deps/ffi64.Tpo -c 
../src/x86/ffi64.c -o src/x86/ffi64.o

depbase=`echo src/x86/unix64.lo | sed 's|[^/]*$|.deps/&|;s|\.lo$||'`;\

/bin/sh ./libtool--mode=compile C:/code/HEAD/inplace/mingw/bin/gcc.exe 
-DHAVE_CONFIG_H -I. -I..  -I. -I../include -Iinclude -I../src  -I. -I../include 
-Iinclude -I../src -Wall -Werror -fno-stack-protector -w -MT src/x86/unix64.lo 
-MMD -MP -MF $depbase.Tpo -c -o src/x86/unix64.lo ../src/x86/unix64.S &&\

mv -f $depbase.Tpo $depbase.Plo

libtool: compile:  C:/code/HEAD/inplace/mingw/bin/gcc.exe -DHAVE_CONFIG_H -I. 
-I.. -I. -I../include -Iinclude -I../src -I. -I../include -Iinclude -I../src 
-Wall -Werror -fno-stack-protector -w -MT src/x86/unix64.lo -MMD -MP -MF 
src/x86/.deps/unix64.Tpo -c ../src/x86/unix64.S -o src/x86/unix64.o

../src/x86/unix64.S: Assembler messages:

../src/x86/unix64.S:45: Error: junk at end of line, first unrecognized 
character is `f'

../src/x86/unix64.S:204: Error: junk at end of line, first unrecognized 
character is `f'

../src/x86/unix64.S:208: Error: junk at end of line, first unrecognized 
character is `f'

../src/x86/unix64.S:326: Error: junk at end of line, first unrecognized 
character is `f'

../src/x86/unix64.S:334: Error: junk at end of line, first unrecognized 
character is `,'

make[5]: *** [Makefile:1335: src/x86/unix64.lo] Error 1

make[5]: Leaving directory '/c/code/HEAD/libffi/build/x86_64-pc-msys'

make[4]: *** [Makefile:1596: all-recursive] Error 1

make[4]: Leaving directory '/c/code/HEAD/libffi/build/x86_64-pc-msys'

make[3]: *** [Makefile:730: all] Error 2

make[3]: Leaving directory '/c/code/HEAD/libffi/build/x86_64-pc-msys'

make[2]: *** [Makefile:608: all-all] Error 2

rts/ghc.mk:494<http://ghc.mk:494>: 
rts/dist/build/.depend-v-l-debug-thr-thr_debug-thr_l.c_asm: No such file or 
directory

make[1]: *** [libffi/ghc.mk:115<http://ghc.mk:115>: 
libffi/stamp.ffi.static.build] Error 2

make: *** [Makefile:127: all] Error 2

/c/code/HEAD$
___
ghc-devs mailing list
ghc-devs@haskell.org<mailto:ghc-devs@haskell.org>
http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs
___
ghc-devs mailing list
ghc-devs@haskell.org
http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs


RE: Windows build failing in a new way

2017-03-09 Thread Ben Gamari
Ben Gamari  writes:

> loneti...@gmail.com writes:
>
>> Ah great,
>>
>> Triples again.. I still wonder why it is suddenly an issue. We haven’t
>> touched the .m4 file in a while and no one changed libffi either
>> right? This is just like last time the normalization bit us. Causing
>> days of broken builds on different targets while everyone fixed the
>> one they were interested in.
>>
> Well, the patch that Reid points out indeed does change the triple which
> we pass to subproject configures. However, I have been utterly unable to
> reproduce this locally nor on the Harbormaster machine (both with
> ./validate).
>
> Nevertheless, I have a hypothesis for the cause and a proposed fix in
> D3304.
>
I believe at this point Harbormaster has demonstrated [1] that the fix
is effective. I'll go ahead and merge.

Cheers,

- Ben


[1] https://phabricator.haskell.org/harbormaster/build/23078/


signature.asc
Description: PGP signature
___
ghc-devs mailing list
ghc-devs@haskell.org
http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs


RE: Windows build failing in a new way

2017-03-09 Thread Ben Gamari
loneti...@gmail.com writes:

> Ah great,
>
> Triples again.. I still wonder why it is suddenly an issue. We haven’t
> touched the .m4 file in a while and no one changed libffi either
> right? This is just like last time the normalization bit us. Causing
> days of broken builds on different targets while everyone fixed the
> one they were interested in.
>
Well, the patch that Reid points out indeed does change the triple which
we pass to subproject configures. However, I have been utterly unable to
reproduce this locally nor on the Harbormaster machine (both with
./validate).

Nevertheless, I have a hypothesis for the cause and a proposed fix in
D3304.

> Why do we do the normalization? It doesn’t seem to give us any
> benefits at all.. Maybe we should stop doing it after the branch for
> 8.4?
>
Well, there are a few different normalizations which you might mean
here. The patch in question affects autoconf's canonicalization. The
patch in question actually removes what may be the last reference to the
autoconf-canonicalized triple. However, my proposed fix then
reintroduces the need for it, since I suspect the cause is that we are
passing an empty triple to subproject configures.

There is also the matter of GHC's own triple normalization (e.g.
GHC_CONVERT_OS and friends, defined in aclocal.m4). I'm frankly not
entirely sure this is doing much harm and replacing it with autoconf's
canonicalized triple would be a non-trivial amount of work. However, if
you want to try I wouldn't be opposed.

Cheers,

- Ben



signature.asc
Description: PGP signature
___
ghc-devs mailing list
ghc-devs@haskell.org
http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs


RE: Windows build failing in a new way

2017-03-09 Thread lonetiger
Ah great,

Triples again.. I still wonder why it is suddenly an issue. We haven’t touched 
the .m4 file in a while and no one changed libffi either right? This is just 
like last time the normalization bit us. Causing days of broken builds on 
different targets while everyone fixed the one they were interested in.

Why do we do the normalization? It doesn’t seem to give us any benefits at 
all.. Maybe we should stop doing it after the branch for 8.4?

From: Ben Gamari
Sent: Thursday, March 9, 2017 18:51
To: Phyx; Simon Peyton Jones; ghc-devs@haskell.org
Subject: Re: Windows build failing in a new way

Phyx <loneti...@gmail.com> writes:

> My CI server is also reproducing it while I also haven't been able to
> locally. Weird indeed.
>
Ahhh, I just noticed that Reid stumbled upon the culprit yesterday. See
[1].

Cheers,

- Ben


[1] https://phabricator.haskell.org/rGHCe901ed1c5d66

___
ghc-devs mailing list
ghc-devs@haskell.org
http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs


Re: Windows build failing in a new way

2017-03-09 Thread Ben Gamari
Phyx  writes:

> My CI server is also reproducing it while I also haven't been able to
> locally. Weird indeed.
>
Ahhh, I just noticed that Reid stumbled upon the culprit yesterday. See
[1].

Cheers,

- Ben


[1] https://phabricator.haskell.org/rGHCe901ed1c5d66


signature.asc
Description: PGP signature
___
ghc-devs mailing list
ghc-devs@haskell.org
http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs


Re: Windows build failing in a new way

2017-03-09 Thread Phyx
My CI server is also reproducing it while I also haven't been able to
locally. Weird indeed.

On Thu, 9 Mar 2017, 17:36 Ben Gamari,  wrote:

> Simon Peyton Jones via ghc-devs  writes:
>
> > My windows build is more broken than usual.  I can't even build a GHC.
> > Please, could someone fix this?  I'm getting desperate.
>
> This is very odd; Harbormaster is also seeing it but I've been unable to
> reproduce locally. It seems that the libffi build is failing but it's
> quite unclear why it would fail for you yet succeed for me. I'll try to
> reproduce on the Harbormaster machine.
>
> Cheers,
>
> - Ben
>
> ___
> ghc-devs mailing list
> ghc-devs@haskell.org
> http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs
>
___
ghc-devs mailing list
ghc-devs@haskell.org
http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs


Re: Windows build failing in a new way

2017-03-09 Thread Ben Gamari
Simon Peyton Jones via ghc-devs  writes:

> My windows build is more broken than usual.  I can't even build a GHC.
> Please, could someone fix this?  I'm getting desperate.

This is very odd; Harbormaster is also seeing it but I've been unable to
reproduce locally. It seems that the libffi build is failing but it's
quite unclear why it would fail for you yet succeed for me. I'll try to
reproduce on the Harbormaster machine.

Cheers,

- Ben



signature.asc
Description: PGP signature
___
ghc-devs mailing list
ghc-devs@haskell.org
http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs


Re: Windows build failing in a new way

2017-03-09 Thread Phyx
Checking again, I think something else is wrong I'll have to check later.
Sorry, but that commit above is still good. If you are really stuck use
that one.

Tamar

On Thu, 9 Mar 2017, 17:11 Phyx,  wrote:

> That said, running the build on HEAD it seems that the template haskell
> stuff committed today has broken the build again. I'd suggest checking out
> the commit in my previous email which is just a few hours old. And cleaning
> ghc-tarballs. As the error you seem to be getting is local.
>
> On Thu, 9 Mar 2017, 16:38 Phyx,  wrote:
>
> Hi Simon,
>
> As of this morning the Windows build was working fine
> https://github.com/Mistuke/GhcWindowsBuild/commit/aa6906b2535224721d8b049cee3edcd938c3e951
> those are my nightly logs for last night at commit a02b80f
>
> That error seems to be coming from gcc and not ghc. We did update the crt
> and maybe the scripts didn't do the right thing. Could you try nuking
> ghc-tarballs and trying again? Of course running with -
> -enable-tarballs-autodownloads on.
>
> Tamar
>
> On Thu, 9 Mar 2017, 16:28 Simon Peyton Jones via ghc-devs, <
> ghc-devs@haskell.org> wrote:
>
> My windows build is more broken than usual.  I can’t even build a GHC.
>
> Please, could someone fix this?  I’m getting desperate.
>
> Simon
>
>
>
> libtool: compile:  C:/code/HEAD/inplace/mingw/bin/gcc.exe -DHAVE_CONFIG_H
> -I. -I.. -I. -I../include -Iinclude -I../src -Wall -Werror
> -fno-stack-protector -w -fexceptions -MT src/x86/ffi64.lo -MMD -MP -MF
> src/x86/.deps/ffi64.Tpo -c ../src/x86/ffi64.c -o src/x86/ffi64.o
>
> depbase=`echo src/x86/unix64.lo | sed 's|[^/]*$|.deps/&|;s|\.lo$||'`;\
>
> /bin/sh ./libtool--mode=compile C:/code/HEAD/inplace/mingw/bin/gcc.exe
> -DHAVE_CONFIG_H -I. -I..  -I. -I../include -Iinclude -I../src  -I.
> -I../include -Iinclude -I../src -Wall -Werror -fno-stack-protector -w -MT
> src/x86/unix64.lo -MMD -MP -MF $depbase.Tpo -c -o src/x86/unix64.lo
> ../src/x86/unix64.S &&\
>
> mv -f $depbase.Tpo $depbase.Plo
>
> libtool: compile:  C:/code/HEAD/inplace/mingw/bin/gcc.exe -DHAVE_CONFIG_H
> -I. -I.. -I. -I../include -Iinclude -I../src -I. -I../include -Iinclude
> -I../src -Wall -Werror -fno-stack-protector -w -MT src/x86/unix64.lo -MMD
> -MP -MF src/x86/.deps/unix64.Tpo -c ../src/x86/unix64.S -o src/x86/unix64.o
>
> ../src/x86/unix64.S: Assembler messages:
>
> ../src/x86/unix64.S:45: Error: junk at end of line, first unrecognized
> character is `f'
>
> ../src/x86/unix64.S:204: Error: junk at end of line, first unrecognized
> character is `f'
>
> ../src/x86/unix64.S:208: Error: junk at end of line, first unrecognized
> character is `f'
>
> ../src/x86/unix64.S:326: Error: junk at end of line, first unrecognized
> character is `f'
>
> ../src/x86/unix64.S:334: Error: junk at end of line, first unrecognized
> character is `,'
>
> make[5]: *** [Makefile:1335: src/x86/unix64.lo] Error 1
>
> make[5]: Leaving directory '/c/code/HEAD/libffi/build/x86_64-pc-msys'
>
> make[4]: *** [Makefile:1596: all-recursive] Error 1
>
> make[4]: Leaving directory '/c/code/HEAD/libffi/build/x86_64-pc-msys'
>
> make[3]: *** [Makefile:730: all] Error 2
>
> make[3]: Leaving directory '/c/code/HEAD/libffi/build/x86_64-pc-msys'
>
> make[2]: *** [Makefile:608: all-all] Error 2
>
> rts/ghc.mk:494:
> rts/dist/build/.depend-v-l-debug-thr-thr_debug-thr_l.c_asm: No such file or
> directory
>
> make[1]: *** [libffi/ghc.mk:115: libffi/stamp.ffi.static.build] Error 2
>
> make: *** [Makefile:127: all] Error 2
>
> /c/code/HEAD$
> ___
> ghc-devs mailing list
> ghc-devs@haskell.org
> http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs
>
>
___
ghc-devs mailing list
ghc-devs@haskell.org
http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs


Re: Windows build failing in a new way

2017-03-09 Thread Phyx
That said, running the build on HEAD it seems that the template haskell
stuff committed today has broken the build again. I'd suggest checking out
the commit in my previous email which is just a few hours old. And cleaning
ghc-tarballs. As the error you seem to be getting is local.

On Thu, 9 Mar 2017, 16:38 Phyx,  wrote:

> Hi Simon,
>
> As of this morning the Windows build was working fine
> https://github.com/Mistuke/GhcWindowsBuild/commit/aa6906b2535224721d8b049cee3edcd938c3e951
> those are my nightly logs for last night at commit a02b80f
>
> That error seems to be coming from gcc and not ghc. We did update the crt
> and maybe the scripts didn't do the right thing. Could you try nuking
> ghc-tarballs and trying again? Of course running with -
> -enable-tarballs-autodownloads on.
>
> Tamar
>
> On Thu, 9 Mar 2017, 16:28 Simon Peyton Jones via ghc-devs, <
> ghc-devs@haskell.org> wrote:
>
> My windows build is more broken than usual.  I can’t even build a GHC.
>
> Please, could someone fix this?  I’m getting desperate.
>
> Simon
>
>
>
> libtool: compile:  C:/code/HEAD/inplace/mingw/bin/gcc.exe -DHAVE_CONFIG_H
> -I. -I.. -I. -I../include -Iinclude -I../src -Wall -Werror
> -fno-stack-protector -w -fexceptions -MT src/x86/ffi64.lo -MMD -MP -MF
> src/x86/.deps/ffi64.Tpo -c ../src/x86/ffi64.c -o src/x86/ffi64.o
>
> depbase=`echo src/x86/unix64.lo | sed 's|[^/]*$|.deps/&|;s|\.lo$||'`;\
>
> /bin/sh ./libtool--mode=compile C:/code/HEAD/inplace/mingw/bin/gcc.exe
> -DHAVE_CONFIG_H -I. -I..  -I. -I../include -Iinclude -I../src  -I.
> -I../include -Iinclude -I../src -Wall -Werror -fno-stack-protector -w -MT
> src/x86/unix64.lo -MMD -MP -MF $depbase.Tpo -c -o src/x86/unix64.lo
> ../src/x86/unix64.S &&\
>
> mv -f $depbase.Tpo $depbase.Plo
>
> libtool: compile:  C:/code/HEAD/inplace/mingw/bin/gcc.exe -DHAVE_CONFIG_H
> -I. -I.. -I. -I../include -Iinclude -I../src -I. -I../include -Iinclude
> -I../src -Wall -Werror -fno-stack-protector -w -MT src/x86/unix64.lo -MMD
> -MP -MF src/x86/.deps/unix64.Tpo -c ../src/x86/unix64.S -o src/x86/unix64.o
>
> ../src/x86/unix64.S: Assembler messages:
>
> ../src/x86/unix64.S:45: Error: junk at end of line, first unrecognized
> character is `f'
>
> ../src/x86/unix64.S:204: Error: junk at end of line, first unrecognized
> character is `f'
>
> ../src/x86/unix64.S:208: Error: junk at end of line, first unrecognized
> character is `f'
>
> ../src/x86/unix64.S:326: Error: junk at end of line, first unrecognized
> character is `f'
>
> ../src/x86/unix64.S:334: Error: junk at end of line, first unrecognized
> character is `,'
>
> make[5]: *** [Makefile:1335: src/x86/unix64.lo] Error 1
>
> make[5]: Leaving directory '/c/code/HEAD/libffi/build/x86_64-pc-msys'
>
> make[4]: *** [Makefile:1596: all-recursive] Error 1
>
> make[4]: Leaving directory '/c/code/HEAD/libffi/build/x86_64-pc-msys'
>
> make[3]: *** [Makefile:730: all] Error 2
>
> make[3]: Leaving directory '/c/code/HEAD/libffi/build/x86_64-pc-msys'
>
> make[2]: *** [Makefile:608: all-all] Error 2
>
> rts/ghc.mk:494:
> rts/dist/build/.depend-v-l-debug-thr-thr_debug-thr_l.c_asm: No such file or
> directory
>
> make[1]: *** [libffi/ghc.mk:115: libffi/stamp.ffi.static.build] Error 2
>
> make: *** [Makefile:127: all] Error 2
>
> /c/code/HEAD$
> ___
> ghc-devs mailing list
> ghc-devs@haskell.org
> http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs
>
>
___
ghc-devs mailing list
ghc-devs@haskell.org
http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs


Re: Windows build failing in a new way

2017-03-09 Thread Phyx
Hi Simon,

As of this morning the Windows build was working fine
https://github.com/Mistuke/GhcWindowsBuild/commit/aa6906b2535224721d8b049cee3edcd938c3e951
those are my nightly logs for last night at commit a02b80f

That error seems to be coming from gcc and not ghc. We did update the crt
and maybe the scripts didn't do the right thing. Could you try nuking
ghc-tarballs and trying again? Of course running with -
-enable-tarballs-autodownloads on.

Tamar

On Thu, 9 Mar 2017, 16:28 Simon Peyton Jones via ghc-devs, <
ghc-devs@haskell.org> wrote:

> My windows build is more broken than usual.  I can’t even build a GHC.
>
> Please, could someone fix this?  I’m getting desperate.
>
> Simon
>
>
>
> libtool: compile:  C:/code/HEAD/inplace/mingw/bin/gcc.exe -DHAVE_CONFIG_H
> -I. -I.. -I. -I../include -Iinclude -I../src -Wall -Werror
> -fno-stack-protector -w -fexceptions -MT src/x86/ffi64.lo -MMD -MP -MF
> src/x86/.deps/ffi64.Tpo -c ../src/x86/ffi64.c -o src/x86/ffi64.o
>
> depbase=`echo src/x86/unix64.lo | sed 's|[^/]*$|.deps/&|;s|\.lo$||'`;\
>
> /bin/sh ./libtool--mode=compile C:/code/HEAD/inplace/mingw/bin/gcc.exe
> -DHAVE_CONFIG_H -I. -I..  -I. -I../include -Iinclude -I../src  -I.
> -I../include -Iinclude -I../src -Wall -Werror -fno-stack-protector -w -MT
> src/x86/unix64.lo -MMD -MP -MF $depbase.Tpo -c -o src/x86/unix64.lo
> ../src/x86/unix64.S &&\
>
> mv -f $depbase.Tpo $depbase.Plo
>
> libtool: compile:  C:/code/HEAD/inplace/mingw/bin/gcc.exe -DHAVE_CONFIG_H
> -I. -I.. -I. -I../include -Iinclude -I../src -I. -I../include -Iinclude
> -I../src -Wall -Werror -fno-stack-protector -w -MT src/x86/unix64.lo -MMD
> -MP -MF src/x86/.deps/unix64.Tpo -c ../src/x86/unix64.S -o src/x86/unix64.o
>
> ../src/x86/unix64.S: Assembler messages:
>
> ../src/x86/unix64.S:45: Error: junk at end of line, first unrecognized
> character is `f'
>
> ../src/x86/unix64.S:204: Error: junk at end of line, first unrecognized
> character is `f'
>
> ../src/x86/unix64.S:208: Error: junk at end of line, first unrecognized
> character is `f'
>
> ../src/x86/unix64.S:326: Error: junk at end of line, first unrecognized
> character is `f'
>
> ../src/x86/unix64.S:334: Error: junk at end of line, first unrecognized
> character is `,'
>
> make[5]: *** [Makefile:1335: src/x86/unix64.lo] Error 1
>
> make[5]: Leaving directory '/c/code/HEAD/libffi/build/x86_64-pc-msys'
>
> make[4]: *** [Makefile:1596: all-recursive] Error 1
>
> make[4]: Leaving directory '/c/code/HEAD/libffi/build/x86_64-pc-msys'
>
> make[3]: *** [Makefile:730: all] Error 2
>
> make[3]: Leaving directory '/c/code/HEAD/libffi/build/x86_64-pc-msys'
>
> make[2]: *** [Makefile:608: all-all] Error 2
>
> rts/ghc.mk:494:
> rts/dist/build/.depend-v-l-debug-thr-thr_debug-thr_l.c_asm: No such file or
> directory
>
> make[1]: *** [libffi/ghc.mk:115: libffi/stamp.ffi.static.build] Error 2
>
> make: *** [Makefile:127: all] Error 2
>
> /c/code/HEAD$
> ___
> ghc-devs mailing list
> ghc-devs@haskell.org
> http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs
>
___
ghc-devs mailing list
ghc-devs@haskell.org
http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs