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From: "rainer@emrich-ebersheim.de" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug bootstrap/55706] New: [4.8 Regression] failue to build libstdc++ in stage 1
Date: Sat, 15 Dec 2012 10:46:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55706

             Bug #: 55706
           Summary: [4.8 Regression] failue to build libstdc++ in stage 1
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: rainer@emrich-ebersheim.de


Created attachment 28976
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28976
error log

There are a lot of failures, huge error log attached.

For me it looks like the root cause is the following:

libstdc++-v3/include/bits/basic_string.h:2971:22: note:   mismatched types
'std::size_t {aka long long unsigned int}' and 'const wchar_t*'

That causes for example
error: no matching function for call to '__to_xstring(int (*)(wchar_t*, const
wchar_t*, char*), long long unsigned int, const wchar_t [3], unsigned int&)'

an leads to template argument deduction/substitution failed.