[debbugs-tracker] bug#10015: closed (Guile-2.0.3: test-ffi fails)

[GNU bug Tracking System]

Your message dated Sun, 24 Feb 2013 22:16:40 -0500
with message-id <address@hidden>
and subject line Re: bug#10015: Guile-2.0.3: test-ffi fails
has caused the debbugs.gnu.org bug report #10015,
regarding Guile-2.0.3: test-ffi fails
to be marked as done.

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10015: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=10015
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> --- Begin Message ---
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> Subject: 
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> Guile-2.0.3: test-ffi fails
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> Date: 
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> Thu, 10 Nov 2011 22:16:26 +0100
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> With guile-2.0.3, OS X 10.7.2, Xcode 4.2, i686-apple-darwin11-llvm-gcc-4.2 
> (GCC) 4.2.1, 'make check' fails on test-ffi. Here, libffi-3.0.9 is used; 
> libffi-3.0.10 does not compile with the same setup.
>
> Hans
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> --- End Message ---
> --- Begin Message ---
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> Subject: 
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> Re: bug#10015: Guile-2.0.3: test-ffi fails
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> Date: 
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> Sun, 24 Feb 2013 22:16:40 -0500
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> Hi Hans.  Following up on an old bug report:
>
> Hans Aberg <address@hidden> wrote:
> > bad return from expression `(f-sum -1 2000 -30000 40000000000)': expected 
> > 39999971999; got 39999972255
> > FAIL: test-ffi
>
> This turns out to be due to a bug in LLVM, namely that it improperly
> assumes that signed integer arguments will be sign-extended by the
> caller, although this is not specified by the SysV x86-64 PS ABI.
> The recently-released libffi 3.0.12 works around this problem.
>
> If you're interested in the gory details, see:
>
>   http://sourceware.org/ml/libffi-discuss/2013/msg00012.html
>   http://gcc.gnu.org/ml/gcc/2013-01/msg00447.html
>   http://bugs.gnu.org/13342
>
> We've been told by another MacOS user that the FFI tests now pass when
> Guile is linked against libffi 3.0.12, so I'm closing this bug.  Please
> let us know if you continue to have problems with the FFI on MacOS.
>
> Thanks again for the bug report!
>
>      Mark
>
>
> --- End Message ---