Tests/RunCMake/UnityBuild/unitybuild_c_and_cxx_and_objc_and_objcxx.cmake

project(unitybuild_c_and_cxx_and_objc_and_objcxx C CXX OBJC OBJCXX)

set(srcs "")
foreach(s RANGE 1 8)
  set(src_c "${CMAKE_CURRENT_BINARY_DIR}/s${s}.c")
  file(WRITE "${src_c}" "int s${s}(void) { return 0; }\n")

  set(src_cxx "${CMAKE_CURRENT_BINARY_DIR}/s${s}.cxx")
  file(WRITE "${src_cxx}" "int s${s}(void) { return 0; }\n")

  set(src_objc "${CMAKE_CURRENT_BINARY_DIR}/s${s}.m")
  file(WRITE "${src_objc}" "int s${s}(void) { return 0; }\n")

  set(src_objcxx "${CMAKE_CURRENT_BINARY_DIR}/s${s}.mm")
  file(WRITE "${src_objcxx}" "int s${s}(void) { return 0; }\n")

  list(APPEND srcs "${src_c}")
  list(APPEND srcs "${src_cxx}")
  list(APPEND srcs "${src_objc}")
  list(APPEND srcs "${src_objcxx}")
endforeach()

add_library(tgt SHARED ${srcs})

set_target_properties(tgt PROPERTIES UNITY_BUILD ON)