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bug#11893: Regression in automake 1.12.1 on Mac OS X
From: |
Max Horn |
Subject: |
bug#11893: Regression in automake 1.12.1 on Mac OS X |
Date: |
Wed, 11 Jul 2012 14:00:36 +0200 |
Thanks to Stefano, most of the issues I was seeing with automake 1.12.2 on Mac
OS X 10.7 are gone now. Thanks!
The issue reported below is the only one that is still open. Anybody get
something on that?
Cheers,
Max
On 09.07.2012, at 19:04, Max Horn wrote:
> Hi there,
>
> I am currently looking into packaging automake 1.12.1 for Fink
> <http://www.finkproject.org/> on Mac OS X 10.7. Doing that, several test
> suite failures popped up, which I am now working through to resolve.
>
> The first one is t/silentcxx-gcc.sh failing. Note that t/silentcxx.sh
> incorrectly (!) succeeds.
>
> There are two problems here:
>
> 1) The C++ compiler from Sun Studio is named "CC". This caused t/silentcxx.sh
> to fail, which was fixed with commit ad5d0be02dd42c200be2ffebb1e062e96a06f80c
> in the autonconf git repository. The same fix also needs to be applied to
> t/silentcxx-gcc.sh.
>
> 2) But actually I am happy this was there, because otherwise I wouldn't have
> detected this second, more serious bug: On Mac OS X, automake 1.12.1
> incorrectly thinks the C++ compiler is named CC (when really it should be
> clang++, c++ or g++). This is because (a( OS X by default uses a case
> in-sensitive file system, and so "CC" is equivalent to "cc", and (b) the
> automake 1.12.1 code for some reason duplicate some autoconf code for
> detecting the C++ compiler, but changed this code, breaking it. To quote
> automake's configure.ac:
>
> <BEGIN QUOTE>
> # The list of C++ compilers here has been copied, pasted and edited
> # from 'lib/autoconf/c.m4:AC_PROG_CXX' in the Autoconf distribution.
> # Keep it in sync, or better again, find out a way to avoid this code
> # duplication.
> _AM_COMPILER_CAN_FAIL([AC_PROG_CXX(dnl
> [aCC CC FCC KCC RCC xlC_r xlC c++ cxx cc++ gpp g++])],
> [CXX=false; _AM_SKIP_COMP_TESTS([C++])])
> <END QUOTE>
>
> But this is what my version of c.m4 contains:
> <BEGIN QUOTE>
> AC_CHECK_TOOLS(CXX,
> [m4_default([$1],
> [g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC
> xlC_r xlC])],
> g++)
> <END QUOTE>
> i.e. the order of the compilers has been changed, and this causes the
> breakage above.
>
> I wonder whether this different order of compilers is intentional -- and why
> this is duplicated in automake in the first place? The comment in
> configure.ac just says that the list was duplicated, not *why*. It would be
> nice if it could be extended to explain just that by somebody who knows :).
>
>
> Finally, out of curiosity: I was wondering why silentcxx-gcc.sh is there --
> and why there isn't a silentcxx-gcc3.sh ?
>
>
> Thanks,
> Max
>
>
>
- bug#11893: Regression in automake 1.12.1 on Mac OS X, Max Horn, 2012/07/09
- bug#11893: Regression in automake 1.12.1 on Mac OS X,
Max Horn <=
- bug#11893: Regression in automake 1.12.1 on Mac OS X, Stefano Lattarini, 2012/07/11
- bug#10766: bug#11893: Regression in automake 1.12.1 on Mac OS X, Peter Rosin, 2012/07/11
- bug#10766: bug#11893: Regression in automake 1.12.1 on Mac OS X, Stefano Lattarini, 2012/07/12
- bug#10766: bug#11893: Regression in automake 1.12.1 on Mac OS X, Peter Rosin, 2012/07/12
- bug#10766: bug#11893: Regression in automake 1.12.1 on Mac OS X, Stefano Lattarini, 2012/07/12
- bug#11893: Regression in automake 1.12.1 on Mac OS X, Eric Blake, 2012/07/12
- bug#10766: bug#11893: Regression in automake 1.12.1 on Mac OS X, Stefano Lattarini, 2012/07/12
- bug#11893: Regression in automake 1.12.1 on Mac OS X, Eric Blake, 2012/07/12
- bug#10766: bug#11893: Regression in automake 1.12.1 on Mac OS X, Eric Blake, 2012/07/12
- bug#10766: bug#11893: Regression in automake 1.12.1 on Mac OS X, Stefano Lattarini, 2012/07/12