[Haskell-iPhone] Here's exactly how to build the master-merge-ios branch

28 Mar 2013

      Stefan,

Here is the exact procedure I just did to successfully build the GHC-iOS 
cross compiler:

git clone git@github.com:ghc-ios/ghc.git ghc-ios
cd ghc-ios
git checkout master-merge-ios
cp arm-apple-darwin10-bin/* ~/bin/          (<-- ~/bin is in my PATH)

I edited ~/bin/arm-apple-darwin10-gcc to change the -march option to 
armv7, like this, because that's what my iPod touch has:

TARGET_CFLAGS="-isysroot $TARGET_PLATFORM -march=armv7 -mcpu=cortex-a8 
-mfpu=neon"

git checkout master
git remote set-url origin http://darcs.haskell.org/ghc.git/
./sync-all --no-dph get
wget 
http://hackage.haskell.org/trac/ghc/raw-attachment/ticket/7759/ios-patch-14a...
wget 
http://hackage.haskell.org/trac/ghc/raw-attachment/ticket/7760/ios-patch-15a...
cd libraries/base
cat ../../ios-patch-14a-libraries-base.patch | patch -p1
cd ../../utils/hsc2hs/
cat 
../../ios-patch-15a-against-hsc2hs-remove-HSC2HS_EXTRA-from-stage0-wrapper.patch 
| patch -p1
cd ../..
git remote set-url origin git@github.com:ghc-ios/ghc.git
git checkout master-merge-ios
cat > mk/build.mk
HADDOCK_DOCS         = NO
BUILD_DOCBOOK_HTML   = NO
BUILD_DOCBOOK_PS     = NO
BUILD_DOCBOOK_PDF    = NO
SPLIT_OBJS           = NO
INTEGER_LIBRARY      = integer-simple
Stage1Only           = YES
DYNAMIC_GHC_PROGRAMS = NO
GhcLibWays           = v
<ctrl-D>
perl boot
./configure --target=arm-apple-darwin10 --prefix=/usr/local/ghc-ios-steve
make

When you get this:
ghc-stage1: panic! (the 'impossible' happened)
   (GHC version 7.7.20130328 for arm-apple-ios):
	expectJust initTcInteractive
just type 'make' again

I am using:
ghc-7.4.2 as my bootstrap ghc compiler

thopminkringscrape:ghc-ios stephenblackheath$ llc --version
Low Level Virtual Machine (http://llvm.org/):
   llvm version 3.0
   Optimized build.
   Built Aug 10 2012 (18:51:37).
   Host: x86_64-apple-darwin12.3.0
   Host CPU: i686

This is the head for master-merge-ios branch:
commit 942b130ada7be3f608286da934026e2c162d9527
Merge: 97274b1 81d55a9
Author: Stephen Blackheath <..>
Date:   Thu Mar 28 23:51:02 2013 +1300

     Merge branch 'master' into master-merge-ios
...
would you mind uploading somewhere a source tree that builds for you?
Sorry - I'm not really able to do that at the moment.
...
you mean the architecture compiled for? armv7 vs armv7s?
That's right.
I have not actually run this version yet.

Steve

On 28/03/13 23:21, Stefan Kersten wrote:
...
hi steve,
On 26 Mar 2013, at 20:36, "Stephen Blackheath [to GHC-iPhone]"  wrote:
...
The rev you mentioned _definitely_ works.
Check that you're using llvm version 3.0 or >= 3.2. Llvm version 3.1 is broken.
i'm using llvm version 3.2, 3.0 doesn't compile anymore with the newest toolchain. still no joy, started from scratch and now having trouble getting as far as i already got. if you have the time and resources, would you mind uploading somewhere a source tree that builds for you? which osx+xcode+llvm are you using?
...
If it's not that, then it could be something to do with ARM variants.
you mean the architecture compiled for? armv7 vs armv7s?
many thanks + best,
sk