Allow using C++17

microsoft · Jan 22, 2024 · 6ca74ac · 6ca74ac
1 parent 74ecd5b
commit 6ca74ac
Showing 1 changed file with 11 additions and 2 deletions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -37,8 +37,17 @@ if (CMAKE_CUDA_COMPILER)
     set (CUDA_FOUND TRUE)
 endif()
 
-set(CMAKE_CXX_STANDARD 20)
-# add_compile_definitions(USE_CXX17=1)
+
+if("${CMAKE_C_COMPILER_ID}" STREQUAL "GNU" AND CMAKE_C_COMPILER_VERSION VERSION_LESS 9)
+  message(FATAL_ERROR  "GCC version must be greater than or equal to 9")
+endif()
+
+if("${CMAKE_C_COMPILER_ID}" STREQUAL "GNU" AND CMAKE_C_COMPILER_VERSION VERSION_LESS 9)
+  add_compile_definitions(USE_CXX17=1)
+  set(CMAKE_CXX_STANDARD 17)
+else()
+  set(CMAKE_CXX_STANDARD 20)
+endif()
 
 set(GENERATORS_ROOT ${PROJECT_SOURCE_DIR}/src)
 set(MODELS_ROOT ${PROJECT_SOURCE_DIR}/src/models)