Add build support with coroutines

test/CMakeLists.txt

@@ -4,11 +4,23 @@ project(qobjects_ranges VERSION 0.1 LANGUAGES CXX)
 
 include(CheckCXXCompilerFlag)
 
+set(QRANGE_IMPL_INCLUDE "../src/qrangefallback_p.h")
+
 check_cxx_compiler_flag("-fconcepts" CXX_CONCEPTS_FLAG)
 if(CXX_CONCEPTS_FLAG)
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fconcepts")
 endif()
 
+check_cxx_compiler_flag("-fcoroutines-ts" CXX_COROUTINES_FLAG)
+if(CXX_COROUTINES_FLAG)
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fcoroutines-ts -stdlib=libc++")
+  set(QRANGE_IMPL_INCLUDE "../src/qrangecoro_p.h")
+
+  add_definitions(-DCOROUTINES_SUPPORT)
+
+  include_directories(SYSTEM ${CMAKE_SOURCE_DIR}/../cppcoro/include)
+endif()
+
 set(CMAKE_INCLUDE_CURRENT_DIR ON)
 set(CMAKE_AUTOMOC ON)
 
@@ -17,7 +29,7 @@ include_directories(SYSTEM ${CMAKE_SOURCE_DIR}/../range-v3/include
 
 find_package(Qt5Core)
 
-add_executable(${PROJECT_NAME} "main.cpp" "FooBar.h" "../src/qrange.h")
+add_executable(${PROJECT_NAME} "main.cpp" "FooBar.h" "../src/qrange.h" ${QRANGE_IMPL_INCLUDE})
 
 if(APPLE AND ${CMAKE_VERSION} VERSION_LESS "3.15.0" AND ${CMAKE_CXX_COMPILER_ID} MATCHES "AppleClang")
   set(CMAKE_CXX20_STANDARD_COMPILE_OPTION "-std=c++2a")