A small helper script for building GHC 7.8 on ARM

build-ghc-arm.sh

#!/bin/bash -e

bindir=`pwd`/bin-tmp
mkdir -p $bindir
export PATH=$bindir:$PATH
function use_ld() {
        rm -f $bindir/ld
        ln -s $1 $bindir/ld
        echo "Using $1 for ld"
}

# Wrapper to strip out BFD ld options which ghc 7.6 will attempt to pass to gold
cat >$bindir/ld.gold-fixed <<EOF
#!/usr/bin/env python
# From http://stackoverflow.com/questions/6952396

import sys
import os
import subprocess

tofilter = [
    "--hash-size",
    "--reduce-memory-overheads",
]

filtered = [ a for a in sys.argv if not any(a.startswith(p) for p in tofilter) ]
filtered[0] = "/usr/bin/ld.gold"

subprocess.check_call(filtered)
EOF
chmod ugo+rx $bindir/ld.gold-fixed


# Build utilities using BFD ld
use_ld /usr/bin/ld.bfd
make $@ -r -f ghc.mk phase=0 phase_0_builds
make $@ -r -f ghc.mk phase=1 utils/hsc2hs/dist/build/tmp/hsc2hs
make $@ -r -f ghc.mk phase=1 utils/ghc-pkg/dist/build/tmp/ghc-pkg
make $@ -r -f ghc.mk phase=1 utils/genapply/dist/build/tmp/genapply
make $@ -r -f ghc.mk phase=1 inplace/lib/bin/ghc-stage1

# Build phase 1 using gold
use_ld $bindir/ld.gold-fixed
make $@ 
make -C ghc $@ 1

cant pulll request but you may want to pull from my gist , there are some issues with the here document format , i think its mainly due to trailing spaces

https://gist.github.com/gregnwosu/2faf401d8794f039af4f

@gregnwosu, could you describe more precisely the behavior you were seeing? I've had no trouble using this script with bash 4.3.30.

@gregnwosu, indeed you were right; there was trailing whitespace in this gist (likely from copying the code from a terminal emulator). I've removed it. Thanks for pointing this out and sorry it took me so long to realize it!