[Haskell-cafe] Announcing GHC iOS

[Gabor Greif]

On 9/1/13, Luke Iannini <lukexipd at gmail.com> wrote:
> Thanks!
>
> This seems to do the trick wonderfully.
> -ghclibdir     = $(libdir)/ghc-$(ProjectVersion)
> +ghclibdir     = $(libdir)/$(CrossCompilePrefix)ghc-$(ProjectVersion)
>
> I've just done a clean build with this and it's working perfectly.

Great! Do you plan to push this? (Please do!)

Cheers,

    Gabor

>
>
> On Sat, Aug 31, 2013 at 2:26 PM, Gabor Greif <ggreif at gmail.com> wrote:
>
>> On 8/31/13, Luke Iannini <lukexipd at gmail.com> wrote:
>> > Hi Gabor!
>> > Yes, I believe that's still the case (we're working around it by using
>> > different prefixes for each architecture at the moment). And I think we
>> > should definitely do what you propose. I'll see if I can get a patch
>> > together shortly (or if someone already knows exactly what to do and
>> wants
>> > to do it first, feel free! : )).
>>
>> This is probably where one should start,
>>
>> https://github.com/ghc/ghc/blob/master/mk/install.mk.in#L108
>>
>> but be careful with the 'if's in the makefile!
>>
>> Cheers,
>>
>>     Gabor
>>
>>
>> >
>> > Cheers
>> > Luke
>> >
>> >
>> > On Sat, Aug 31, 2013 at 4:50 AM, Gabor Greif <ggreif at gmail.com> wrote:
>> >
>> >> Hi Luke, devs,
>> >>
>> >> Just a quick question, as I haven't recently built a cross-compiler,
>> >> but I have noticed a problem with installation of cross-ghc last time.
>> >>
>> >> $ ls <prefix>/lib/ghc-7.7.20130412
>> >>
>> >> The problem is, that when someone installs a non-cross
>> >> compiler the same day, the cross-compiler's
>> >> libraries and executables get overwritten
>> >> by the non-cross installation :-(
>> >>
>> >> This probably also happens with release versions.
>> >>
>> >> Can you confirm this behaviour with HEAD?
>> >>
>> >> In case yes, should we consider adding a
>> >> cross-prefix, like employed in bin/ ?
>> >>
>> >> $ ls <prefix>/bin/powerpc-montavista-linux-gnuspe-ghc-pkg-7.7.20130412
>> >>
>> >> Of course all the links inside must be re-aligned accordingly.
>> >>
>> >> Cheers,
>> >>
>> >>     Gabor
>> >>
>> >>
>> >> On 8/31/13, Luke Iannini <lukexipd at gmail.com> wrote:
>> >> > I will tell Stephen!
>> >> >
>> >> > I've added iOS as Tier 2 — I bet we can find a sponsor for a
>> >> > buildbot
>> >> down
>> >> > the line — and I've added myself while I wait to hear from Stephen.
>> >> > It
>> >> > looks like the mailto links on the wiki (e.g. the names in the
>> Platform
>> >> > Maintainers section) aren't working, by the way:
>> >> > http://ghc.haskell.org/trac/ghc/wiki/CodeOwners.
>> >> >
>> >> > Cheers
>> >> > Luke
>> >> >
>> >> >
>> >> > On Fri, Aug 30, 2013 at 2:04 AM, Simon Peyton-Jones
>> >> > <simonpj at microsoft.com>wrote:
>> >> >
>> >> >>  Great.  Please thank Stephen too.. I don’t have his email.****
>> >> >>
>> >> >> ** **
>> >> >>
>> >> >> Just go ahead and modify ****
>> >> >>
>> >> >> http://ghc.haskell.org/trac/ghc/wiki/CodeOwners****
>> >> >>
>> >> >> http://ghc.haskell.org/trac/ghc/wiki/Platforms****
>> >> >>
>> >> >> ** **
>> >> >>
>> >> >> I assume iOS will become a tier-2 platform?****
>> >> >>
>> >> >> ** **
>> >> >>
>> >> >> Simon****
>> >> >>
>> >> >> ** **
>> >> >>
>> >> >> *From:* Luke Iannini [mailto:lukexipd at gmail.com]
>> >> >> *Sent:* 30 August 2013 09:07
>> >> >> *To:* Simon Peyton-Jones
>> >> >> *Cc:* Austin Seipp
>> >> >>
>> >> >> *Subject:* Re: [Haskell-cafe] Announcing GHC iOS****
>> >> >>
>> >> >>  ** **
>> >> >>
>> >> >> Certainly! And I'd be happy to take on maintainership of GHC iOS if
>> >> >> that's
>> >> >> what you mean — I've committed to a very large project using it so
>> >> >> I'll
>> >> >> be
>> >> >> maintaining it anyway : ). I'd guess Stephen would feel the
>> >> >> same.****
>> >> >>
>> >> >> ** **
>> >> >>
>> >> >> And thanks so much for the kind words, it means the world! Thank
>> >> >> you
>> >> >> infinitely for Haskell : ).****
>> >> >>
>> >> >> ** **
>> >> >>
>> >> >> Cheers****
>> >> >>
>> >> >> Luke****
>> >> >>
>> >> >> ** **
>> >> >>
>> >> >> On Fri, Aug 30, 2013 at 12:32 AM, Simon Peyton-Jones <
>> >> >> simonpj at microsoft.com> wrote:****
>> >> >>
>> >> >>  Should we update the “Platform maintainers” on
>> >> >> http://ghc.haskell.org/trac/ghc/wiki/TeamGHC****
>> >> >>
>> >> >> or the list of supported platforms on
>> >> >> http://ghc.haskell.org/trac/ghc/wiki/Platforms?****
>> >> >>
>> >> >>  ****
>> >> >>
>> >> >> *From:* Haskell-Cafe [mailto:haskell-cafe-bounces at haskell.org] *On
>> >> Behalf
>> >> >> Of *Luke Iannini
>> >> >> *Sent:* 29 August 2013 21:56
>> >> >> *To:* Haskell Cafe
>> >> >> *Subject:* Re: [Haskell-cafe] Announcing GHC iOS****
>> >> >>
>> >> >>  ****
>> >> >>
>> >> >> Stephen provided some more credits — thanks so much to all!****
>> >> >>
>> >> >>  ****
>> >> >>
>> >> >> Three connected projects concerning cross-compilation:****
>> >> >>
>> >> >>  ****
>> >> >>
>> >> >> *Registerised ARM support, added using David Terei's LLVM compiler
>> >> >> back
>> >> >> end with Stephen Blackheath doing an initial ARMv5 version and LLVM
>> >> patch
>> >> >> and Karel Gardas working on floating point support, ARMv7
>> >> >> compatibility
>> >> >> and
>> >> >> LLVM headaches. Ben Gamari did work on the runtime linker for
>> ARM.****
>> >> >>
>> >> >>  ****
>> >> >>
>> >> >> *General cross-compiling, with much work by Stephen Blackheath and
>> >> >> Gabor
>> >> >> Greif (though many others have worked on this).****
>> >> >>
>> >> >>  ****
>> >> >>
>> >> >> *A cross-compiler for Apple iOS. iOS-specific parts were mostly
>> >> >> Stephen
>> >> >> Blackheath with Luke Iannini on the Cabal patch, testing and
>> >> >> supporting
>> >> >> infrastructure, also with assistance and testing by Miëtek Bak and
>> >> >> Jonathan
>> >> >> Fischoff, and thanks to many others for testing; The iOS cross
>> >> >> compiler
>> >> >> was
>> >> >> started back in 2009 by Stephen Blackheath with funding from Ryan
>> >> Trinkle
>> >> >> of iPwn Studios.****
>> >> >>
>> >> >>  ****
>> >> >>
>> >> >> Thanks to Ian Lynagh for making it easy for us with integration,
>> >> makefile
>> >> >> refactoring and patience, and to David Terei for LLVM
>> >> >> assistance.****
>> >> >>
>> >> >>  ****
>> >> >>
>> >> >>  ****
>> >> >>
>> >> >> On Thu, Aug 29, 2013 at 1:43 PM, Luke Iannini <lukexipd at gmail.com>
>> >> >> wrote:*
>> >> >> ***
>> >> >>
>> >> >>  Hi all!****
>> >> >>
>> >> >> (in case you don't read /r/haskell : ))****
>> >> >>
>> >> >>  ****
>> >> >>
>> >> >> Stephen Blackheath and I are extremely happy to report that as of
>> >> >> today,
>> >> >> GHC can natively build binaries for iOS devices and the iOS
>> >> >> Simulator.****
>> >> >>
>> >> >>  ****
>> >> >>
>> >> >> You'll find everything you need here:
>> >> >> http://ghc.haskell.org/trac/ghc/wiki/Building/CrossCompiling/iOS****
>> >> >>
>> >> >>  ****
>> >> >>
>> >> >> The short of it is you can use "ghc-ios myFiles.hs" to get a
>> universal
>> >> >> ARMv7/ARMv7s/i386 static library to drop straight into an Xcode
>> >> >> project.**
>> >> >> **
>> >> >>
>> >> >>  ****
>> >> >>
>> >> >> Stephen's already working on some wonderful FRP-powered games, I'm
>> >> >> working
>> >> >> on a project called SpaceTime that I'll announce shortly, and you
>> >> >> may
>> >> now
>> >> >> all begin creating insanely great iOS software using the finest
>> >> >> language
>> >> >> in
>> >> >> the world : ).****
>> >> >>
>> >> >>  ****
>> >> >>
>> >> >> Stephen deserves the lion's share of the credit for this project —
>> >> >> it's
>> >> >> been over 3 years in the making! Many thanks to Maxwell Swadling
>> >> >> for
>> >> >> generalizing static library builds into a -staticlib flag for GHC,
>> >> Carter
>> >> >> Schonwald for compilation guidance, and the venerable Austin Seipp
>> for
>> >> >> reviewing and merging our patches.****
>> >> >>
>> >> >>   ****
>> >> >>
>> >> >>  ** **
>> >> >>
>> >> >
>> >>
>> >
>>
>