Validate that c++20 if SPDLOG_USE_FMT_FORMAT=ON

gabime · Sep 16, 2023 · ca49a12 · ca49a12
1 parent c1e4c80
commit ca49a12
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -104,6 +104,10 @@ if(SPDLOG_USE_STD_FORMAT AND SPDLOG_FMT_EXTERNAL)
     message(FATAL_ERROR "SPDLOG_USE_STD_FORMAT and SPDLOG_FMT_EXTERNAL are mutually exclusive")
 endif()
 
+if(SPDLOG_USE_STD_FORMAT AND CMAKE_CXX_STANDARD LESS 20)
+    message(FATAL_ERROR "SPDLOG_USE_STD_FORMAT must be used with CMAKE_CXX_STANDARD >= 20")
+endif()
+
 # misc tweakme options
 if(WIN32)
     option(SPDLOG_WCHAR_FILENAMES "Support wchar filenames" OFF)