[lldb-dev] [Bug 23051] New: lldb 3.6.0 fails to compile with gcc 4.9

[bugzilla-daemon at llvm.org]

https://llvm.org/bugs/show_bug.cgi?id=23051

            Bug ID: 23051
           Summary: lldb 3.6.0 fails to compile with gcc 4.9
           Product: lldb
           Version: 3.6
          Hardware: PC
                OS: FreeBSD
            Status: NEW
          Severity: normal
          Priority: P
         Component: All Bugs
          Assignee: lldb-dev at cs.uiuc.edu
          Reporter: rodrigc at freebsd.org
    Classification: Unclassified

Created attachment 14109
  --> https://llvm.org/bugs/attachment.cgi?id=14109&action=edit
patch

I'm part of the https://jenkins.freebsd.org continuous integration team.

I used this script:
https://github.com/freebsd/freebsd-ci/blob/master/scripts/build/cross-build.sh

to cross-build FreeBSD-CURRENT with gcc 4.9.

While building, I encountered this compilation problem with lldb:

/opt2/branches/head/lib/clang/liblldbCore/../../../contrib/llvm/tools/lldb/source/Core/Mangled.cpp:4889:20:
error: declaration of 'typedef using String = class std::__1::basic_string
<char, std::__1::char_traits<char>, {anonymous}::malloc_alloc<char> >
{anonymous}::Db::Stri
ng' [-fpermissive]
     typedef String String;
                    ^
/opt2/branches/head/lib/clang/liblldbCore/../../../contrib/llvm/tools/lldb/source/Core/Mangled.cpp:4868:83:
error: changes meaning of 'String' from 'using String = class
std::__1::basic_string<char, std::__1::char_traits<char>,
{anonymous}::malloc_alloc<char> >' [-fpermissive]
 using String = std::basic_string<char, std::char_traits<char>,
malloc_alloc<char>>;
                                                                               
   ^

The attached patch fixed it for me.

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