cmake_minimum_required(VERSION 2.6) project(testRebuild) function(test_for_xcode4 result_var) set(${result_var} 0 PARENT_SCOPE) if(APPLE) execute_process(COMMAND xcodebuild -version OUTPUT_VARIABLE ov RESULT_VARIABLE rv ) if("${rv}" STREQUAL "0") if(ov MATCHES "^Xcode 4.[0-9].*$") set(${result_var} 1 PARENT_SCOPE) endif() endif() endif() endfunction() if(APPLE) # only use multi-arch if the sysroot exists on this machine # Ninja needs -M which could not be used with multiple -arch flags if(EXISTS "${CMAKE_OSX_SYSROOT}" AND NOT "${CMAKE_GENERATOR}" MATCHES "Ninja") set(CMAKE_OSX_ARCHITECTURES "ppc;i386") test_for_xcode4(is_xcode4) if(is_xcode4) # Xcode 4, use modern architectures as defaults # Arch 'ppc' no longer works: tools no longer available starting with Xcode 4 set(CMAKE_OSX_ARCHITECTURES i386 x86_64) endif() endif() endif(APPLE) add_library(foo STATIC ${testRebuild_BINARY_DIR}/foo.cxx) set_target_properties(foo PROPERTIES OUTPUT_NAME "foolib") # Add a generated header that regenerates when the generator is # rebuilt. add_custom_command( OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/regen.h COMMAND generator ${CMAKE_CURRENT_BINARY_DIR}/regen.h regen DEPENDS generator # adds file-level dependency to re-run rule ) # Add a generated header that does NOT regenerate when the generator # is rebuilt. add_custom_command( OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/noregen.h COMMAND generator ${CMAKE_CURRENT_BINARY_DIR}/noregen.h noregen ) # Test that the generator rebuilds when the static library source file # changes. This should cause regen.h to be recreated also. add_executable(generator generator.cxx) target_link_libraries(generator foo) set_target_properties(generator PROPERTIES OUTPUT_NAME "gen") # Build an executable to drive the build and rebuild. include_directories(${CMAKE_CURRENT_BINARY_DIR}) add_executable(bar bar.cxx ${CMAKE_CURRENT_BINARY_DIR}/regen.h ${CMAKE_CURRENT_BINARY_DIR}/noregen.h ) #----------------------------------------------------------------------------- IF("${CMAKE_GENERATOR}" MATCHES "Make") # Test the IMPLICIT_DEPENDS feature. SET(ZOT_DEPENDS IMPLICIT_DEPENDS CXX ${CMAKE_CURRENT_SOURCE_DIR}/dep.cxx) SET(ZOT_CUSTOM_DEP IMPLICIT_DEPENDS CXX ${CMAKE_CURRENT_SOURCE_DIR}/dep_custom.cxx) ELSE("${CMAKE_GENERATOR}" MATCHES "Make") # No IMPLICIT_DEPENDS...just depend directly. SET(ZOT_DEPENDS DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/zot.hxx.in) SET(ZOT_CUSTOM_DEP DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/zot_custom.hxx.in) ENDIF("${CMAKE_GENERATOR}" MATCHES "Make") add_custom_command( OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/zot.hxx COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_BINARY_DIR}/zot.hxx.in ${CMAKE_CURRENT_BINARY_DIR}/zot.hxx ${ZOT_DEPENDS} ) add_custom_command( OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/zot_custom.hxx COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_BINARY_DIR}/zot_custom.hxx.in ${CMAKE_CURRENT_BINARY_DIR}/zot_custom.hxx ${ZOT_CUSTOM_DEP} ) add_custom_target(zot_custom ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/zot_custom.hxx) add_executable(zot zot.cxx ${CMAKE_CURRENT_BINARY_DIR}/zot.hxx zot_macro_dir.cxx zot_macro_tgt.cxx) add_dependencies(zot zot_custom) # Test the #include line macro transformation rule support. set_property( TARGET zot PROPERTY IMPLICIT_DEPENDS_INCLUDE_TRANSFORM "ZOT_TGT(%)=" ) set_property( DIRECTORY PROPERTY IMPLICIT_DEPENDS_INCLUDE_TRANSFORM "ZOT_DIR(%)=" ) if(TEST_LINK_DEPENDS) add_executable(linkdep linkdep.cxx) set_property(TARGET linkdep PROPERTY LINK_DEPENDS ${TEST_LINK_DEPENDS}) endif()