I'm seeing an error when trying to compile the string::append example from cplusplus.com ( http://www.cplusplus.com/reference/string/string/append ) with the oe-core gcc 5.3 / glibc toolchain and -std=c++11. Log below.
The problem seems to be related to the new libstdc++ dual ABI introduced in GCC 5.1: https://gcc.gnu.org/onlinedocs/libstdc++/manual/using_dual_abi.html If I use -std=c++11 together with -D_GLIBCXX_USE_CXX11_ABI=0 to force the old ABI then the test app compiles OK. Do we perhaps need to do something different when building libstdc++ to enable the new ABI? ---- i686-rdk-linux-g++ -m32 -march=core2 -mtune=core2 -msse3 -mfpmath=sse --sysroot=/.../tmp/sysroots/vbox32 -std=c++11 test.cpp test.cpp: In function 'int main()': test.cpp:18:25: error: no matching function for call to 'std::__cxx11::basic_string<char>::append(int, int)' str.append<int>(5,0x2E); // "....." ^ In file included from /.../tmp/sysroots/vbox32/usr/include/c++/5.3.0/string:52:0, from /.../tmp/sysroots/vbox32/usr/include/c++/5.3.0/bits/locale_classes.h:40, from /.../tmp/sysroots/vbox32/usr/include/c++/5.3.0/bits/ios_base.h:41, from /.../tmp/sysroots/vbox32/usr/include/c++/5.3.0/ios:42, from /.../tmp/sysroots/vbox32/usr/include/c++/5.3.0/ostream:38, from /.../tmp/sysroots/vbox32/usr/include/c++/5.3.0/iostream:39, from test.cpp:2: /.../tmp/sysroots/vbox32/usr/include/c++/5.3.0/bits/basic_string.h:1071:9: note: candidate: template<class _InputIterator, class> std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::append(_InputIterator, _InputIterator) [with _InputIterator = _InputIterator; <template-parameter-2-2> = <template-parameter-1-2>; _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>] append(_InputIterator __first, _InputIterator __last) ^ /.../tmp/sysroots/vbox32/usr/include/c++/5.3.0/bits/basic_string.h:1071:9: note: template argument deduction/substitution failed: ---- -- _______________________________________________ Openembedded-core mailing list Openembedded-core@lists.openembedded.org http://lists.openembedded.org/mailman/listinfo/openembedded-core
