CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY CMAKE_INSTALL_BINDIR CMAKE_INSTALL_DATAROOTDIR CMAKE_INSTALL_INCLUDEDIR CMAKE_INSTALL_LIBDIR CMAKE_INSTALL_LIBEXECDIR CMAKE_INSTALL_OLDINCLUDEDIR CMAKE_INSTALL_SBINDIR ENABLE_STATIC CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY CMakeFiles/test_package.dir/example1.cpp.o: In function `main': /home/conan/w/cci_PR-4032/9/6cc4a403-b7bc-4a06-8c78-424f8f58722c/recipes/cnpy/all/test_package/example1.cpp:24: undefined reference to `cnpy::npy_load(std::string)' /home/conan/w/cci_PR-4032/9/6cc4a403-b7bc-4a06-8c78-424f8f58722c/recipes/cnpy/all/test_package/example1.cpp:45: undefined reference to `cnpy::npz_load(std::string, std::string)' /home/conan/w/cci_PR-4032/9/6cc4a403-b7bc-4a06-8c78-424f8f58722c/recipes/cnpy/all/test_package/example1.cpp:48: undefined reference to `cnpy::npz_load(std::string)' CMakeFiles/test_package.dir/example1.cpp.o: In function `void cnpy::npz_save(std::string, std::string, double const*, std::vector > const&, std::string)': /home/conan/w/cci_PR-4032/.conan/data/cnpy/cci.20180601/_/_/package/38c30526dd3f05f5a4b9106873d9507127cb4ac3/include/cnpy.h:188: undefined reference to `std::vector >& cnpy::operator+=(std::vector >&, std::string)' /home/conan/w/cci_PR-4032/.conan/data/cnpy/cci.20180601/_/_/package/38c30526dd3f05f5a4b9106873d9507127cb4ac3/include/cnpy.h:200: undefined reference to `std::vector >& cnpy::operator+=(std::vector >&, std::string)' CMakeFiles/test_package.dir/example1.cpp.o: In function `void cnpy::npz_save(std::string, std::string, char const*, std::vector > const&, std::string)': /home/conan/w/cci_PR-4032/.conan/data/cnpy/cci.20180601/_/_/package/38c30526dd3f05f5a4b9106873d9507127cb4ac3/include/cnpy.h:188: undefined reference to `std::vector >& cnpy::operator+=(std::vector >&, std::string)' /home/conan/w/cci_PR-4032/.conan/data/cnpy/cci.20180601/_/_/package/38c30526dd3f05f5a4b9106873d9507127cb4ac3/include/cnpy.h:200: undefined reference to `std::vector >& cnpy::operator+=(std::vector >&, std::string)' CMakeFiles/test_package.dir/example1.cpp.o: In function `void cnpy::npz_save >(std::string, std::string, std::complex const*, std::vector > const&, std::string)': /home/conan/w/cci_PR-4032/.conan/data/cnpy/cci.20180601/_/_/package/38c30526dd3f05f5a4b9106873d9507127cb4ac3/include/cnpy.h:188: undefined reference to `std::vector >& cnpy::operator+=(std::vector >&, std::string)' CMakeFiles/test_package.dir/example1.cpp.o:/home/conan/w/cci_PR-4032/.conan/data/cnpy/cci.20180601/_/_/package/38c30526dd3f05f5a4b9106873d9507127cb4ac3/include/cnpy.h:200: more undefined references to `std::vector >& cnpy::operator+=(std::vector >&, std::string)' follow clang: error: linker command failed with exit code 1 (use -v to see invocation) make[2]: *** [bin/test_package] Error 1 make[1]: *** [CMakeFiles/test_package.dir/all] Error 2 make: *** [all] Error 2 ERROR: cnpy/cci.20180601 (test package): Error in build() method, line 11 cmake.build() ConanException: Error 2 while executing cmake --build '/home/conan/w/cci_PR-4032/9/6cc4a403-b7bc-4a06-8c78-424f8f58722c/recipes/cnpy/all/test_package/build/f547c722ccb16ab496dd64221d2f615c8cea000b' '--' '-j3'