[cfe-dev] libcxx+clang ToT Build Failures

[Dean Michael Berris]

Hi Everyone,

Has anybody lately been able to build libcxx (top of trunk) with clang
(top of trunk)? I'm encountering the following errors:

+ clang++ -c -g -Os -arch i386 -arch x86_64 -std=c++0x
-U__STRICT_ANSI__ -nostdinc++ -I../include ../src/iostream.cpp
../src/iostream.cpp:16:1: error: C++ requires a type specifier for all
declarations
alignas (__stdinbuf<char> ) static char __cin [sizeof(__stdinbuf <char>)];
^~~~~~~
../src/iostream.cpp:16:28: error: expected ';' after top level declarator
alignas (__stdinbuf<char> ) static char __cin [sizeof(__stdinbuf <char>)];
                           ^
                           ;
../src/iostream.cpp:17:1: error: C++ requires a type specifier for all
declarations
alignas (__stdoutbuf<char>) static char __cout[sizeof(__stdoutbuf<char>)];
^~~~~~~
../src/iostream.cpp:17:28: error: expected ';' after top level declarator
alignas (__stdoutbuf<char>) static char __cout[sizeof(__stdoutbuf<char>)];
                           ^
                           ;
../src/iostream.cpp:18:1: error: C++ requires a type specifier for all
declarations
alignas (__stdoutbuf<char>) static char __cerr[sizeof(__stdoutbuf<char>)];
^~~~~~~
../src/iostream.cpp:18:28: error: expected ';' after top level declarator
alignas (__stdoutbuf<char>) static char __cerr[sizeof(__stdoutbuf<char>)];
                           ^
                           ;
../src/iostream.cpp:19:1: error: C++ requires a type specifier for all
declarations
alignas (__stdinbuf<wchar_t> ) static char __wcin [sizeof(__stdinbuf
<wchar_t>)];
^~~~~~~
../src/iostream.cpp:19:31: error: expected ';' after top level declarator
alignas (__stdinbuf<wchar_t> ) static char __wcin [sizeof(__stdinbuf
<wchar_t>)];
                              ^
                              ;
../src/iostream.cpp:20:1: error: C++ requires a type specifier for all
declarations
alignas (__stdoutbuf<wchar_t>) static char
__wcout[sizeof(__stdoutbuf<wchar_t>)];
^~~~~~~
../src/iostream.cpp:20:31: error: expected ';' after top level declarator
alignas (__stdoutbuf<wchar_t>) static char
__wcout[sizeof(__stdoutbuf<wchar_t>)];
                              ^
                              ;
../src/iostream.cpp:21:1: error: C++ requires a type specifier for all
declarations
alignas (__stdoutbuf<wchar_t>) static char
__wcerr[sizeof(__stdoutbuf<wchar_t>)];
^~~~~~~
../src/iostream.cpp:21:31: error: expected ';' after top level declarator
alignas (__stdoutbuf<wchar_t>) static char
__wcerr[sizeof(__stdoutbuf<wchar_t>)];
                              ^
                              ;
../src/iostream.cpp:23:1: error: C++ requires a type specifier for all
declarations
alignas (istream) char cin [sizeof(istream)];
^~~~~~~
../src/iostream.cpp:23:18: error: expected ';' after top level declarator
alignas (istream) char cin [sizeof(istream)];
                 ^
                 ;
../src/iostream.cpp:24:1: error: C++ requires a type specifier for all
declarations
alignas (ostream) char cout[sizeof(ostream)];
^~~~~~~
../src/iostream.cpp:24:18: error: expected ';' after top level declarator
alignas (ostream) char cout[sizeof(ostream)];
                 ^
                 ;
../src/iostream.cpp:25:1: error: C++ requires a type specifier for all
declarations
alignas (ostream) char cerr[sizeof(ostream)];
^~~~~~~
../src/iostream.cpp:25:18: error: expected ';' after top level declarator
alignas (ostream) char cerr[sizeof(ostream)];
                 ^
                 ;
../src/iostream.cpp:26:1: error: C++ requires a type specifier for all
declarations
alignas (ostream) char clog[sizeof(ostream)];
^~~~~~~
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.


I'm following the instructions at http://libcxx.llvm.org/ -- I've also
been trying to build it using CMake but I'm not getting far with clang
either.

Build environment is Mac OS X 10.6.8, clang is built with the stock GCC.

Is this a known issue and if it is, is anybody working on it?

Cheers

-- 
Dean Michael Berris
www.deanberris.com