get rid of GlobalOptions.cmake

CMakeLists.txt

@@ -6,7 +6,6 @@ list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 #find_package(foo REQUIRED)
 
 include(AddAutoformatTarget)
-include(GlobalOptions)
 include(GNUInstallDirs)
 
 add_subdirectory(src)

cmake/GlobalOptions.cmake

@@ -1,3 +0,0 @@
-add_compile_options($<$<OR:$<C_COMPILER_ID:Clang>,$<C_COMPILER_ID:AppleClang>,$<C_COMPILER_ID:GNU>>:-Wall -Wextra>)
-set(CMAKE_CXX_STANDARD 20)
-#set(CMAKE_CXX_CLANG_TIDY clang-tidy --config=)

src/CMakeLists.txt

@@ -9,5 +9,13 @@ target_include_directories(${PROJECT_NAME}
     $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
     $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
 )
+target_compile_features(${PROJECT_NAME}
+  PUBLIC
+    cxx_std_20
+)
+target_compile_options(${PROJECT_NAME}
+  PRIVATE
+    $<$<OR:$<CXX_COMPILER_ID:Clang>,$<CXX_COMPILER_ID:AppleClang>,$<CXX_COMPILER_ID:GNU>>:-Wall -Wextra>
+)
 
 add_autoformat_target(${PROJECT_NAME})