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cmake_minimum_required(VERSION 2.6)
project(testRebuild)
add_library(foo STATIC ${testRebuild_BINARY_DIR}/foo.cxx)
# 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 ${CMAKE_CURRENT_BINARY_DIR}/noregen.h noregen
)
# Test that the generator rebuilds when the static library source file
# changes. This should cause regen.h to be recreated also.
add_executable(generator generator.cxx)
target_link_libraries(generator foo)
# Build an executable to drive the build and rebuild.
include_directories(${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>"
)
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