Run cmake \
cmake \
-B build \
-S . \
-DCMAKE_CXX_STANDARD=26 \
-DCMAKE_TOOLCHAIN_FILE="infra/cmake/gnu-toolchain.cmake" \
-DCMAKE_PROJECT_TOP_LEVEL_INCLUDES="./infra/cmake/use-fetch-content.cmake" \
shell: bash --noprofile --norc -e -o pipefail {0}
env:
CMAKE_GENERATOR: Ninja Multi-Config
-- The CXX compiler identification is GNU 13.4.1
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/sbin/g++ - skipped
-- Detecting CXX compile features
CMake Warning (dev) at /usr/share/cmake/Modules/Compiler/CMakeCommonCompilerMacros.cmake:248 (cmake_language):
CMake's support for `import std;` in C++23 and newer is experimental. It
is meant only for experimentation and feedback to CMake developers.
Call Stack (most recent call first):
/usr/share/cmake/Modules/CMakeDetermineCompilerSupport.cmake:113 (cmake_create_cxx_import_std)
/usr/share/cmake/Modules/CMakeTestCXXCompiler.cmake:83 (CMAKE_DETERMINE_COMPILER_SUPPORT)
CMakeLists.txt:7 (project)
This warning is for project developers. Use -Wno-dev to suppress it.
-- Detecting CXX compile features - done
-- CMAKE_CXX_COMPILER_IMPORT_STD=
-- CMAKE_CXX_SCAN_FOR_MODULES=OFF
-- The C compiler identification is GNU 13.4.1
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/sbin/gcc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Success
-- Found Threads: TRUE
-- Looking for __cpp_lib_ranges
CMake Error in /__w/exemplar/exemplar/build/CMakeFiles/CMakeScratch/TryCompile-ijMWEL/CMakeLists.txt:
Target "cmTC_693ad" requires the language dialect "CXX26" (with compiler
extensions). But the current compiler "GNU" does not support this, or
CMake does not know the flags to enable it.
