Trying to use FastDDS with QtCreator and MinGW [17538]

[cerberus77]

I'm trying to use FastDDS with my Qt project. I'm using MinGW compiler. The project compiles, however I got following errors during linking.

:-1: error: debug/main.o:C:\projects\CASCUpdaterTool\src\build-SoftwareUpdaterApp-Desktop_Qt_6_4_2_MinGW_64_bit-Debug/../libs/fastrtps-2.9.1/include/fastdds/rtps/common/Time_t.h:458: undefined reference to eprosima::fastrtps::rtps::Time_t::Time_t(int, unsigned int)'
👎 error: debug/main.o: in function __static_initialization_and_destruction_0': C:\projects\CASCUpdaterTool\src\libs\fastrtps-2.9.1\include\fastdds\rtps\common\Time_t.h:459: error: undefined reference to eprosima::fastrtps::rtps::Time_t::Time_t(int, unsigned int)'
👎 error: C:\projects\CASCUpdaterTool\src\build-SoftwareUpdaterApp-Desktop_Qt_6_4_2_MinGW_64_bit-Debug/../libs/fastrtps-2.9.1/include/fastdds/rtps/common/Time_t.h:460: undefined reference to eprosima::fastrtps::rtps::Time_t::Time_t(int, unsigned int)' :-1: error: C:\projects\CASCUpdaterTool\src\build-SoftwareUpdaterApp-Desktop_Qt_6_4_2_MinGW_64_bit-Debug/../libs/fastrtps-2.9.1/include/fastdds/rtps/common/Time_t.h:679: undefined reference to eprosima::fastrtps::Time_t::Time_t(int, unsigned int)'
👎 error: C:\projects\CASCUpdaterTool\src\build-SoftwareUpdaterApp-Desktop_Qt_6_4_2_MinGW_64_bit-Debug/../libs/fastrtps-2.9.1/include/fastdds/rtps/common/Time_t.h:681: undefined reference to eprosima::fastrtps::Time_t::Time_t(int, unsigned int)' :-1: error: C:\projects\CASCUpdaterTool\src\build-SoftwareUpdaterApp-Desktop_Qt_6_4_2_MinGW_64_bit-Debug/../libs/fastrtps-2.9.1/include/fastdds/rtps/common/Time_t.h:683: undefined reference to eprosima::fastrtps::Time_t::Time_t(int, unsigned int)'
👎 error: collect2.exe: error: ld returned 1 exit status
👎 error: [Makefile.Debug:128: debug/SoftwareUpdaterApp.exe] Error 1`

Any advice how to fix these? It's always eprosima::fastrtps::rtps::Time_t::Time_t object which causes the linking problems.

[richiware]

Likely the symbols is not imported. In order to import Fast-DDS's DLL symbols use the preprocessor definition FASTRTPS_DYN_LINK.