Link error with head Re: [commit: ghc] master: GHCi: Properly generate jump code for ARM (#8380) (5bab1a5)

[Carter Schonwald]

I'll cook up a patch and post it to trac in the next hour.

On Tuesday, November 26, 2013, Carter Schonwald wrote:

> It's because you're using GCC 4.2 on your Mac.  It's not in GCC till 4.3.
>
> But should be cppd so that it's not used on x86 architectures so that this
> use doesn't happen
>
> On Monday, November 25, 2013, Amos Robinson wrote:
>
>> Sorry for the noise, it turns out there's already a trac ticket:
>> https://ghc.haskell.org/trac/ghc/ticket/8561
>> (I didn't find it because I was searching for ___builtin… instead of
>> __builtin!)
>>
>> On Tue, Nov 26, 2013 at 3:39 PM, Amos Robinson <amos.robinson at gmail.com>
>> wrote:
>> > Hi,
>> > I'm having trouble linking with head:
>> >
>> >> [1 of 1] Compiling Main             ( bindisttest/HelloWorld.lhs,
>> bindisttest/HelloWorld.o )
>> >> Linking bindisttest/HelloWorld ...
>> >> Undefined symbols for architecture x86_64:
>> >>   "___builtin___clear_cache", referenced from:
>> >>      _flushExec in libHSrts.a(Storage.o)
>> >> ld: symbol(s) not found for architecture x86_64
>> >> collect2: ld returned 1 exit status
>> >
>> > This is on OSX 10.8.5, where gcc --version gives me
>> >> i686-apple-darwin11-llvm-gcc-4.2 (GCC) 4.2.1 (Based on Apple Inc.
>> build 5658) (LLVM build 2336.11.00)
>> >
>> > I get the impression that this commit is related. Is it the case that
>> > Apple switched from gcc to clang recently? Could that be why
>> > ___builtin__clear_cache is missing?
>> >
>> > I'm sorry, I don't really know anything about the runtime system, so
>> > am kind of stuck.
>> >
>> >
>> --SNIP--
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>
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