cmake_minimum_required(VERSION 3.5)

project(testbed)
set(CMAKE_CXX_STANDARD 11)

file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/empty_main.cpp
[=[
int main()
{
}
]=])

file(GLOB_RECURSE ALL_SOURCES
    ${CMAKE_CURRENT_SOURCE_DIR}
    *.h *.h?? *.c *.c??
)

message(STATUS "'${ALL_SOURCES}'")

add_executable(${PROJECT_NAME}
    ${ALL_SOURCES}
    ${CMAKE_CURRENT_BINARY_DIR}/empty_main.cpp)