[Haskell-cafe] Announcing GHC iOS

[Gabor Greif]

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.****
>> >>
>> >>   ****
>> >>
>> >>  ** **
>> >>
>> >
>>
>