DavidA 0 Posted January 11 Report Share Posted January 11 Hi I build libsystemc.a (version 2.3.3) using the following CMake configuration on Centos 7 using gcc 7.3.1: cmake -DBUILD_SHARED_LIBS=OFF -DCMAKE_CXX_STANDARD=14 -DCMAKE_CXX_COMPILER=/opt/rh/devtoolset-7/root/usr/bin/g++ -DCMAKE_POSITION_INDEPENDENT_CODE=True .. When I link to my C++ application on Centos 7 it links and runs fine. But when I link to the same libsystemc.a on Ubuntu 18.04 (which uses g++ 7.4.0) I get runtime link error: undefined symbol: _ZNK5sc_dt8sc_fxnum9to_stringB5cxx11ENS_9sc_numrepE ( sc_dt::sc_fxnum::to_string[abi:cxx11](sc_dt::sc_numrep) const ) Now in both cases the app is built with C++14 enabled. And I know that libsystemc.a uses C++14: nm -C <snip>/SystemC/rel-2.3.3/x64-linux/_release/libsystemc.a | grep sc_api_version 0000000000000850 T sc_core::sc_api_version_2_3_3_cxx201402L<&sc_core::SC_DISABLE_VIRTUAL_BIND_UNDEFINED_>::sc_api_version_2_3_3_cxx201402L(sc_core::sc_writer_policy) So I don't know why the undefined symbol indicates '[abi:cxx11]'. Any idea why this is happening please? Quote Link to post Share on other sites
Eyck 91 Posted January 11 Report Share Posted January 11 You need to built the SystemC lib on ubuntu. With the introduction of small string optimization in C++11 gcc decided to move this into a different (inline) namespace (it is called DualABI). The use of of this can be configured at build time of gcc. Basically this is a decision of the distribution and may differ even if the version is the same. You may try to compile your SystemC code with '-D_GLIBCXX_USE_CXX11_ABI=0' or '-D_GLIBCXX_USE_CXX11_ABI=1'. See also https://gcc.gnu.org/wiki/Cxx11AbiCompatibility https://stackoverflow.com/questions/36159238/linking-problems-due-to-symbols-with-abicxx11 https://stackoverflow.com/questions/34571583/understanding-gcc-5s-glibcxx-use-cxx11-abi-or-the-new-abi HTH Quote Link to post Share on other sites
DavidA 0 Posted January 12 Author Report Share Posted January 12 Thanks for your reply - very helpful. Best regards, David Quote Link to post Share on other sites
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