CMake Warning:
  Manually-specified variables were not used by the project:

    BUILD_TESTS
    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 Error in CMakeLists.txt:
  Target "test_package" requires the language dialect "CXX17" (with compiler
  extensions), but CMake does not know the compile flags to use to enable it.


CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_EXPORT_NO_PACKAGE_REGISTRY


CMake Generate step failed.  Build files cannot be regenerated correctly.
cppcmd/cci.20201107: WARN: This conanfile has no build step
ERROR: cppcmd/cci.20201107 (test package): Error in build() method, line 11
	cmake.configure()
	ConanException: Error 1 while executing cd '/home/conan/w/cci_PR-3442/1/9cafc53b-a0aa-4b4e-b4cf-6716e6078baf/recipes/cppcmd/all/test_package/build/dfae4d6ba682b8d9c5630c4c912db585c2a46c64' && cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE="Release" -DCONAN_IN_LOCAL_CACHE="OFF" -DCONAN_COMPILER="gcc" -DCONAN_COMPILER_VERSION="4.9" -DCONAN_CXX_FLAGS="-m64" -DCONAN_SHARED_LINKER_FLAGS="-m64" -DCONAN_C_FLAGS="-m64" -DCONAN_LIBCXX="libstdc++" -DCMAKE_EXPORT_NO_PACKAGE_REGISTRY="ON" -DCONAN_EXPORTED="1" -Wno-dev '/home/conan/w/cci_PR-3442/1/9cafc53b-a0aa-4b4e-b4cf-6716e6078baf/recipes/cppcmd/all/test_package'