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AIX libstdc++ failures

From: David Edelsohn <dje dot gcc at gmail dot com>
To: Jason Merrill <jason at redhat dot com>
Cc: GCC Patches <gcc-patches at gcc dot gnu dot org>, "libstdc++ at gcc dot gnu dot org" <libstdc++ at gcc dot gnu dot org>
Date: Tue, 18 Nov 2014 11:55:53 -0500
Subject: AIX libstdc++ failures
Authentication-results: sourceware.org; auth=none

Jason,

After your recent C++ patches from yesterday, I am encountering a huge
number of libstdc++ failures on AIX preventing creation of
executables.  They all are of the form:

/tmp/20141118/powerpc-ibm-aix7.1.0.0/libstdc++-v3/include/bits/regex_compiler.h:
424:31:   in constexpr expansion of 'std::__detail::_BracketMatcher<
<template-parameter-1-1>, <anonymous>, <anonymous>
>::_S_cache_size<std::regex_traits<char>, false, false>()'
/tmp/20141118/powerpc-ibm-aix7.1.0.0/libstdc++-v3/include/bits/regex_compiler.h:
425:20: error: '(int)(1ul * 8ul)' is not a constant expression
/tmp/20141118/powerpc-ibm-aix7.1.0.0/libstdc++-v3/include/bits/regex_compiler.h:
424:31:   in constexpr expansion of 'std::__detail::_BracketMatcher<
<template-parameter-1-1>, <anonymous>, <anonymous>
>::_S_cache_size<std::regex_traits<char>, false, true>()'
/tmp/20141118/powerpc-ibm-aix7.1.0.0/libstdc++-v3/include/bits/regex_compiler.h:
425:20: error: '(int)(1ul * 8ul)' is not a constant expression
/tmp/20141118/powerpc-ibm-aix7.1.0.0/libstdc++-v3/include/bits/regex_compiler.h:
424:31:   in constexpr expansion of 'std::__detail::_BracketMatcher<
<template-parameter-1-1>, <anonymous>, <anonymous>
>::_S_cache_size<std::regex_traits<char>, true, false>()'
/tmp/20141118/powerpc-ibm-aix7.1.0.0/libstdc++-v3/include/bits/regex_compiler.h:
425:20: error: '(int)(1ul * 8ul)' is not a constant expression
/tmp/20141118/powerpc-ibm-aix7.1.0.0/libstdc++-v3/include/bits/regex_compiler.h:
424:31:   in constexpr expansion of 'std::__detail::_BracketMatcher<
<template-parameter-1-1>, <anonymous>, <anonymous>
>::_S_cache_size<std::regex_traits<char>, true, true>()'
/tmp/20141118/powerpc-ibm-aix7.1.0.0/libstdc++-v3/include/bits/regex_compiler.h:
425:20: error: '(int)(1ul * 8ul)' is not a constant expression

The full output for one testcase is attached.

Thanks, David

Attachment: regex_28.txt
Description: Text document

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