CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY CONAN_COMPILER CONAN_COMPILER_VERSION CONAN_CXX_FLAGS CONAN_C_FLAGS CONAN_EXPORTED CONAN_IN_LOCAL_CACHE CONAN_LIBCXX CONAN_SHARED_LINKER_FLAGS CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY /usr/bin/ld: CMakeFiles/standalone.dir/200-standalone.cpp.o: in function `Catch::BinaryExpr::streamReconstructedExpression(std::ostream&) const': 200-standalone.cpp:(.text._ZNK5Catch10BinaryExprIbbE29streamReconstructedExpressionERSo[_ZNK5Catch10BinaryExprIbbE29streamReconstructedExpressionERSo]+0x1b): undefined reference to `Catch::StringMaker::convert(bool)' /usr/bin/ld: 200-standalone.cpp:(.text._ZNK5Catch10BinaryExprIbbE29streamReconstructedExpressionERSo[_ZNK5Catch10BinaryExprIbbE29streamReconstructedExpressionERSo]+0x31): undefined reference to `Catch::StringMaker::convert(bool)' /usr/bin/ld: 200-standalone.cpp:(.text._ZNK5Catch10BinaryExprIbbE29streamReconstructedExpressionERSo[_ZNK5Catch10BinaryExprIbbE29streamReconstructedExpressionERSo]+0x49): undefined reference to `Catch::formatReconstructedExpression(std::ostream&, std::string const&, Catch::StringRef, std::string const&)' clang: error: linker command failed with exit code 1 (use -v to see invocation) make[2]: *** [CMakeFiles/standalone.dir/build.make:85: bin/standalone] Error 1 make[1]: *** [CMakeFiles/Makefile2:78: CMakeFiles/standalone.dir/all] Error 2 make[1]: *** Waiting for unfinished jobs.... clang: error: unable to execute command: Terminated clang: error: clang frontend command failed due to signal (use -v to see invocation) clang version 8.0.0-3 (tags/RELEASE_800/final) Target: x86_64-pc-linux-gnu Thread model: posix InstalledDir: /usr/bin clang: note: diagnostic msg: PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash backtrace, preprocessed source, and associated run script. make[2]: *** [CMakeFiles/test_package.dir/build.make:63: CMakeFiles/test_package.dir/000-CatchMain.cpp.o] Terminated make[1]: *** [CMakeFiles/Makefile2:105: CMakeFiles/test_package.dir/all] Error 2 make: *** [Makefile:84: all] Error 2 ERROR: catch2/2.13.4 (test package): Error in build() method, line 12 cmake.build() ConanException: Error 2 while executing cmake --build '/home/conan/w/cci_PR-4043/10/4a0d4538-dd23-4e24-97b8-07fa36d4cabb/recipes/catch2/2.x.x/test_package/build/7596797172a1f929c52f05864b1906f43ee01edb' '--' '-j3' Terminated