[cfe-dev] Problems with Clang 3.1 and libc++

[Pere Joan Martorell]

Hi,
I'm using Mac OS X 10.6 and I'm trying to compile a program using Clang 
3.1 and libc++ but one of include files of libc++ is giving problems, 
specifically one called "cmath" located in /usr/include/c++/v1/. I have 
searched about this on google and I red something about building libc++ 
with -U__STRICT_ANSI__  param but the same errors appear. I paste here 
the output:

    $ make
    [100%] Building CXX object CMakeFiles/foo.dir/foo.cpp.o
    In file included from /Users/xxxxx/fantom/bin/foo/foo.cpp:1:
    In file included from
    /Users/xxxxx/fantom/include/fantom/algorithm.hpp:10:
    In file included from /usr/include/c++/v1/unordered_map:318:
    In file included from /usr/include/c++/v1/__hash_table:19:
    /usr/include/c++/v1/cmath:1333:9: error: no member named 'llrint' in
    the global namespace
    using ::llrint;
           ~~^
    /usr/include/c++/v1/cmath:1334:9: error: no member named 'llrintf'
    in the global namespace
    using ::llrintf;
           ~~^
    /usr/include/c++/v1/cmath:1336:86: error: use of undeclared
    identifier 'llrintf'
    inline _LIBCPP_INLINE_VISIBILITY long long llrint(float __x)
    _NOEXCEPT       {return llrintf(__x);}
    ^
    /usr/include/c++/v1/cmath:1337:86: error: use of undeclared
    identifier 'llrintl'
    inline _LIBCPP_INLINE_VISIBILITY long long llrint(long double __x)
    _NOEXCEPT {return llrintl(__x);}
    ^
    /usr/include/c++/v1/cmath:1342:35: error: call to 'llrint' is ambiguous
    llrint(_A1 __x) _NOEXCEPT {return llrint((double)__x);}
                                       ^~~~~~
    /usr/include/c++/v1/cmath:1336:44: note: candidate function
    inline _LIBCPP_INLINE_VISIBILITY long long llrint(float __x)
    _NOEXCEPT       {return llrintf(__x);}
                                                ^
    /usr/include/c++/v1/cmath:1337:44: note: candidate function
    inline _LIBCPP_INLINE_VISIBILITY long long llrint(long double __x)
    _NOEXCEPT {return llrintl(__x);}
                                                ^
    /usr/include/c++/v1/cmath:1346:9: error: no member named 'llround'
    in the global namespace
    using ::llround;
           ~~^
    /usr/include/c++/v1/cmath:1347:9: error: no member named 'llroundf'
    in the global namespace
    using ::llroundf;
           ~~^
    /usr/include/c++/v1/cmath:1349:87: error: use of undeclared
    identifier 'llroundf'
    inline _LIBCPP_INLINE_VISIBILITY long long llround(float __x)
    _NOEXCEPT       {return llroundf(__x);}
    ^
    /usr/include/c++/v1/cmath:1350:87: error: use of undeclared
    identifier 'llroundl'
    inline _LIBCPP_INLINE_VISIBILITY long long llround(long double __x)
    _NOEXCEPT {return llroundl(__x);}
    ^
    /usr/include/c++/v1/cmath:1355:36: error: call to 'llround' is ambiguous
    llround(_A1 __x) _NOEXCEPT {return llround((double)__x);}
                                        ^~~~~~~
    /usr/include/c++/v1/cmath:1349:44: note: candidate function
    inline _LIBCPP_INLINE_VISIBILITY long long llround(float __x)
    _NOEXCEPT       {return llroundf(__x);}
                                                ^
    /usr/include/c++/v1/cmath:1350:44: note: candidate function
    inline _LIBCPP_INLINE_VISIBILITY long long llround(long double __x)
    _NOEXCEPT {return llroundl(__x);}
                                                ^
    /usr/include/c++/v1/cmath:1649:9: error: no member named 'llrintl'
    in the global namespace
    using ::llrintl;
           ~~^
    /usr/include/c++/v1/cmath:1650:9: error: no member named 'llroundl'
    in the global namespace
    using ::llroundl;
           ~~^
    12 errors generated.
    make[2]: *** [CMakeFiles/foo.dir/foo.cpp.o] Error 1
    make[1]: *** [CMakeFiles/foo.dir/all] Error 2
    make: *** [all] Error 2

I have built libc++ without any problem and all paths are correct, the 
only thing is that the testing application "testit" is doing the tests 
using the Clang version that came with XCode (which is not compatible 
with Mac OSX 10.6) instead of the one that I installed with Macports. Is 
there any way to define a specific compiler to do the tests?

Thank you,

Pere Joan
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