library is linked but reference is undefined

when you are linking, the order of your libraries and source files makes a difference. for example for your case,

g++ -I/usr/local/cuda/include -L/usr/lib/nvidia-current -lOpenCL opencl.cpp

functions defined in the OpenCL library might not be loaded, since there nothing before them asking for a look-up. however if you use,

g++ opencl.cpp -I/usr/local/cuda/include -L/usr/lib/nvidia-current -lOpenCL

then any requests for functions will be found in the OpenCL library and they will be loaded.

Related Contents:

  1. Static variables initialisation order
  2. How to properly add include directories with CMake
  3. Splitting templated C++ classes into .hpp/.cpp files–is it possible?
  4. How do I make a fully statically linked .exe with Visual Studio Express 2005?
  5. What happens to global and static variables in a shared library when it is dynamically linked?
  6. Linking static libraries to other static libraries
  7. g++ undefined reference to typeinfo
  8. How does C++ linking work in practice? [duplicate]
  9. GCC C++ Linker errors: Undefined reference to ‘vtable for XXX’, Undefined reference to ‘ClassName::ClassName()’
  10. VS Code will not build c++ programs with multiple .ccp source files
  11. What do linkers do?
  12. Is it safe to link C++17, C++14, and C++11 objects
  13. error LNK2019: unresolved external symbol _main referenced in function ___tmainCRTStartup
  14. Altering DLL search path for static linked DLL
  15. Undefined reference to ‘pthread_create’ — linker command option order (libraries before/after object files?) [duplicate]
  16. How can I statically link standard library to my C++ program?
  17. g++ linking order dependency when linking c code to c++ code
  18. How do I install the OpenSSL libraries on Ubuntu?
  19. C and C++ programming on Ubuntu 11.10 [closed]
  20. Difference between shared objects (.so), static libraries (.a), and DLL’s (.so)?
  21. How to specify preference of library path?
  22. static variables in an inlined function
  23. C++ template, linking error [duplicate]
  24. Compiling multithread code with g++
  25. Linking a shared library with another shared lib in linux
  26. Compilation fails with “relocation R_X86_64_32 against `.rodata.str1.8′ can not be used when making a shared object”
  27. gcc: undefined reference to
  28. error LNK2005: already defined – C++
  29. How to create NVIDIA OpenCL project
  30. MinGW linker error: winsock
  31. openCV program compile error “libopencv_core.so.2.4: cannot open shared object file: No such file or directory” in ubuntu 12.04
  32. Undefined reference error for template method [duplicate]
  33. GCC linker can’t find standard library?
  34. Replacing ld with gold – any experience?
  35. questions about name mangling in C++
  36. error LNK2038: mismatch detected for ‘_ITERATOR_DEBUG_LEVEL’: value ‘0’ doesn’t match value ‘2’ in main.obj
  37. What do C and Assembler actually compile to? [closed]
  38. Visual Studio Code formatting for “{ }”
  39. How to link using GCC without -l nor hardcoding path for a library that does not follow the libNAME.so naming convention?
  40. Unresolved external symbol LNK2019
  41. cmake find_package specify path
  42. When should I write the keyword ‘static’ before a non-member function?
  43. How to use OpenSSL with GCC?
  44. Why is statically linking glibc discouraged?
  45. error LNK2005: xxx already defined in MSVCRT.lib(MSVCR100.dll) C:\something\LIBCMT.lib(setlocal.obj)
  46. Can I link a plain file into my executable? [duplicate]
  47. How does the linker handle identical template instantiations across translation units?
  48. Undefined reference to `stdscr’ while using ncurses
  49. How to solve ——-undefined reference to `__chkstk_ms’——-on mingw
  50. Multiple definition error on variable that is declared and defined in header file and used only in its cpp file

Leave a Comment