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New autoconf bitfcns test failing
From: |
Rik |
Subject: |
New autoconf bitfcns test failing |
Date: |
Tue, 05 Jun 2012 08:56:34 -0700 |
6/5/12
Carlo,
In the following changeset you added autoconf checking for templated bit
functions like bit_and, bit_or, and bit_xor.
changeset: 14725:fa48fd0f160f
user: Carlo de Falco <address@hidden>
date: Tue Jun 05 07:39:46 2012 +0200
summary: Add configure check for templated bitwise operators.
Unfortunately, I now can't compile on a straight Linux distribution (Ubuntu
10.04). I get the following errors when trying to compile src/bitfcns.cc
bitfcns.cc:51: error: redefinition of ‘struct std::bit_and<_Tp>’
/usr/include/c++/4.4/bits/stl_function.h:293: error: previous definition of
‘struct std::bit_and<_Tp>’
bitfcns.cc:58: error: redefinition of ‘struct std::bit_or<_Tp>’
/usr/include/c++/4.4/bits/stl_function.h:301: error: previous definition of
‘struct std::bit_or<_Tp>’
bitfcns.cc:65: error: redefinition of ‘struct std::bit_xor<_Tp>’
/usr/include/c++/4.4/bits/stl_function.h:309: error: previous definition of
‘struct std::bit_xor<_Tp>’
make[3]: *** [liboctinterp_la-bitfcns.lo] Error 1
If I look at config.h it shows that HAVE_CXX_BITWISE_OP_TEMPLATES is
undefined so the templates get re-defined at the start of bitfcns.cc. It
looks like it must be something with the test program in acinclude.m4 which
is returning the wrong result.
--Rik
- New autoconf bitfcns test failing,
Rik <=