在CMake编译过程中遇到“undefined reference to”错误通常是因为链接器无法找到某个函数或变量的定义。 常见原因及解决方法 缺少依赖库: 确保所有必要的库文件都已正确安装,并且在CMakeLists.txt中正确配置。 使用target_link_libraries()命令添加依赖库。 cmake target_link_libraries(
real-ld.exe: warning: c:/nxp/s32ds.3.5/s32ds/build_tools/gcc_v10.2/gcc-10.2-arm32-eabi/bin/../lib/gcc/arm-none-eabi/10.2.0/thumb/v7e-m+fp/hard\libgcc.a(unwind-arm.o) uses variable-size enums yet the output is to use 32-bit enums; use of e...
cannot declare variable ‘impl’ to be of abstract type ‘CountingPlayer’ because the subclass becomes abstract But if I include the declaration ('bool Method(struct x, struct y)') in the subclass implementation, I get the 'undefined reference to vtable' error. ...
char*, CvFileNode*): error: undefined reference to'std::string::at(unsigned int)'C:/sdk/opencv-3.4.2-android-sdk/sdk/native/staticlibs/armeabi-v7a/libopencv_core.a(persistence.cpp.o):persistence.cpp:function
undefined reference to `__stdio_common_vswprintf_s' collect2.exe: error: ld returned 1 exit status = note: some `extern` functions couldn't be found; some native libraries may need to be installed or have their path specified = note: use the `-l` flag to specify native libraries to ...
What is odd is that this structure seems identical to another program I have linking just fine which used the ADS1220_WE library defining a similar object the same way. What am I missing here? (I have tried extern statements in several places to no avail). THANK YOU. ...
Looking at this forum post, it seems like adding cyfxcppsyscall.cpp would fix it however I then get errors where `extern char __heap_start`and `extern char __heap_end` are missing. How do I solve this _sbrk error? Is there a better way to approach variable sized USB descrip...
compressed_secondary_cache.cc:(.text._ZN7rocksdb15CompressionDictD2Ev[_ZN7rocksdb15CompressionDictD5Ev]+0xd): undefined reference to `ZSTD_freeCDict' collect2: error: ld returned 1 exit status = help: some `extern` functions couldn't be found; some native libraries may need to be install...
defined(NO_BOARD_LIB) // Read clock settings and update SystemCoreClock variable SystemCoreClockUpdate(); // Set up and initialize all required blocks and // functions related to the board hardware Board_Init(); // Set the LED to the state of "On" Board_LED_Set(0, true); #endif #...
but I changed it do a static library and removed the dll export things. Then I want to use this library in a C++ project.I wrapped an extern "C" around the include of the header files to eliminate name mangling. However, I got linker errors for the library functions (undefined ...