Hello.
While building different c++ projects with gcc 4.7 on OpenIndiana I've
faced several problems with Solaris standard headers (including
stdlib.h, iso/stdlib_iso.h, iso/stdio_iso.h and other)
https://www.illumos.org/issues/3787
The prolem was introduced by fixing
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=1773 (defining __cplusplus
correctly). I've tested some patches to illumos headers, but even with
patches applied not all g++ tests in gcc/testsuite can be passed).
Firstly, it seems that g++ searches for abs(double) in <stdlib.h>:
/usr/gcc/4.7/lib/gcc/i386-pc-solaris2.11/4.7.3/../../../../include/c++/4.7.3/bits/random.tcc:1269:39:
error: call of overloaded 'abs(const double&)' is ambiguous
/usr/gcc/4.7/lib/gcc/i386-pc-solaris2.11/4.7.3/../../../../include/c++/4.7.3/bits/random.tcc:1269:39:
note: candidates are:
In file included from /usr/include/stdlib.h:34:0,
from
/usr/gcc/4.7/lib/gcc/i386-pc-solaris2.11/4.7.3/../../../../include/c++/4.7.3/cstdlib:66,
from
/usr/gcc/4.7/lib/gcc/i386-pc-solaris2.11/4.7.3/../../../../include/c++/4.7.3/bits/stl_algo.h:61,
from
/usr/gcc/4.7/lib/gcc/i386-pc-solaris2.11/4.7.3/../../../../include/c++/4.7.3/algorithm:63,
from ./g++.dg/cpp0x/lambda/lambda-pass.C:5:
/usr/include/iso/stdlib_iso.h:124:12: note: int abs(int)
In file included from
/usr/gcc/4.7/lib/gcc/i386-pc-solaris2.11/4.7.3/../../../../include/c++/4.7.3/bits/stl_algo.h:61:0,
from
/usr/gcc/4.7/lib/gcc/i386-pc-solaris2.11/4.7.3/../../../../include/c++/4.7.3/algorithm:63,
from ./g++.dg/cpp0x/lambda/lambda-pass.C:5:
/usr/gcc/4.7/lib/gcc/i386-pc-solaris2.11/4.7.3/../../../../include/c++/4.7.3/cstdlib:175:3:
note: long long int __gnu_cxx::abs(long long int)
double abs(double) is defined in math.h, however above-mentioned headers
don't include it.
Other errors in dejagnu logs include
In file included from ./g++.old-deja/g++.other/inline2.C:5:0:
/usr/gcc/4.7/lib/gcc/i386-pc-solaris2.11/4.7.3/../../../../include/c++/4.7.3/cmath:102:5:
note: template<class _Tp> typename
__gnu_cxx::__enable_if<std::__is_integer<_Tp>::__value, double>::__type
std::abs(_Tp)
/usr/gcc/4.7/lib/gcc/i386-pc-solaris2.11/4.7.3/../../../../include/c++/4.7.3/cmath:102:5:
note: template argument deduction/substitution failed:
/usr/gcc/4.7/lib/gcc/i386-pc-solaris2.11/4.7.3/../../../../include/c++/4.7.3/cmath:
In substitution of 'template<class _Tp> typename
__gnu_cxx::__enable_if<std::__is_integer<_Tp>::__value, double>::__type
std::abs(_Tp) [with _Tp = double]':
./g++.old-deja/g++.other/inline2.C:10:38: required from here
/usr/gcc/4.7/lib/gcc/i386-pc-solaris2.11/4.7.3/../../../../include/c++/4.7.3/cmath:102:5:
error: no type named '__type' in 'struct __gnu_cxx::__enable_if<false,
double>'
/usr/gcc/4.7/lib/gcc/i386-pc-solaris2.11/4.7.3/../../../../include/c++/4.7.3/bits/stl_algo.h:5499:5:
note: void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter =
__gnu_cxx::__normal_iterator<int*, std::vector<int> >; _Compare =
std::pointer_to_binary_function<const E
xpr<int>, const Expr<int>, bool>]
/usr/gcc/4.7/lib/gcc/i386-pc-solaris2.11/4.7.3/../../../../include/c++/4.7.3/bits/stl_algo.h:5499:5:
note: no known conversion for argument 3 from '<unresolved overloaded
function type>' to 'std::pointer_to_binary_function<const Expr<int>,
const Expr<int>, bool>'
I don't know how these errors can be fixed. The GCC bug 1773 was closed,
but g++ 4.7 is still broken in OpenIndiana/illumos environment. Need
your advices. If you wish I can share dejagnu logs somewhere (with
patched illumos headers and with original headers).
--
Best regards,
Alexander Pyhalov,
system administrator of Computer Center of Southern Federal University
