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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(%)=<zot_%_tgt.hxx>"
)
set_property(
DIRECTORY
PROPERTY IMPLICIT_DEPENDS_INCLUDE_TRANSFORM "ZOT_DIR(%)=<zot_%_dir.hxx>"
)
if(TEST_LINK_DEPENDS)
add_executable(linkdep linkdep.cxx)
set_property(TARGET linkdep PROPERTY LINK_DEPENDS ${TEST_LINK_DEPENDS})
endif()
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