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# Import targets from the exported build tree.
include(${Import_BINARY_DIR}/../Export/ExportBuildTree.cmake)
# Import targets from the exported install tree.
include(${CMAKE_INSTALL_PREFIX}/lib/exp/exp.cmake)
# Import two exports, where the Depends one depends on an exported target from the Required one:
include(${CMAKE_INSTALL_PREFIX}/lib/cmake/testLibRequired/testLibRequiredTargets.cmake)
include(${CMAKE_INSTALL_PREFIX}/lib/cmake/testLibDepends/testLibDependsTargets.cmake)
# Try referencing an executable imported from the install tree.
add_custom_command(
OUTPUT ${Import_BINARY_DIR}/exp_generated.c
COMMAND exp_testExe1 ${Import_BINARY_DIR}/exp_generated.c
DEPENDS exp_testExe1
)
add_custom_command(
OUTPUT ${Import_BINARY_DIR}/exp_generated3.c
COMMAND exp_testExe3 ${Import_BINARY_DIR}/exp_generated3.c
DEPENDS exp_testExe3
)
add_executable(imp_testExe1
imp_testExe1.c
${Import_BINARY_DIR}/exp_generated.c
${Import_BINARY_DIR}/exp_generated3.c
)
# Try linking to a library imported from the install tree.
target_link_libraries(imp_testExe1
exp_testLib2
exp_testLib3
exp_testLib4
exp_testLib5
exp_testLib6
exp_testLibCycleA
)
# Try building a plugin to an executable imported from the install tree.
add_library(imp_mod1 MODULE imp_mod1.c)
target_link_libraries(imp_mod1 exp_testExe2)
# Try referencing an executable imported from the build tree.
add_custom_command(
OUTPUT ${Import_BINARY_DIR}/bld_generated.c
COMMAND bld_testExe1 ${Import_BINARY_DIR}/bld_generated.c
DEPENDS bld_testExe1
)
add_custom_command(
OUTPUT ${Import_BINARY_DIR}/bld_generated3.c
COMMAND bld_testExe3 ${Import_BINARY_DIR}/bld_generated3.c
DEPENDS bld_testExe3
)
add_executable(imp_testExe1b
imp_testExe1.c
${Import_BINARY_DIR}/bld_generated.c
${Import_BINARY_DIR}/bld_generated3.c
)
# Try linking to a library imported from the build tree.
target_link_libraries(imp_testExe1b
bld_testLib2
bld_testLib3
bld_testLib4
bld_testLib5
bld_testLib6
bld_testLibCycleA
)
# Try building a plugin to an executable imported from the build tree.
add_library(imp_mod1b MODULE imp_mod1.c)
target_link_libraries(imp_mod1b bld_testExe2)
# Export/CMakeLists.txt pretends the RelWithDebInfo (as well as Debug)
# configuration should link to debug libs.
foreach(c DEBUG RELWITHDEBINFO)
set_property(TARGET imp_testExe1 PROPERTY COMPILE_DEFINITIONS_${c} EXE_DBG)
set_property(TARGET imp_testExe1b PROPERTY COMPILE_DEFINITIONS_${c} EXE_DBG)
endforeach()
#-----------------------------------------------------------------------------
# Create a custom target to generate a header for the libraries below.
# Drive the header generation through an indirect chain of imported
# target dependencies.
# testLib2tmp1.h
add_custom_command(
OUTPUT testLib2tmp1.h
VERBATIM COMMAND
${CMAKE_COMMAND} -E echo "extern int testLib2(void);" > testLib2tmp1.h
)
# hdr_testLib2tmp1 needs testLib2tmp1.h
add_custom_target(hdr_testLib2tmp1 DEPENDS testLib2tmp1.h)
# exp_testExe2 needs hdr_testLib2tmp1
add_dependencies(exp_testExe2 hdr_testLib2tmp1)
# testLib2tmp.h needs exp_testExe2
add_custom_command(
OUTPUT testLib2tmp.h
VERBATIM COMMAND exp_testExe2
COMMAND ${CMAKE_COMMAND} -E copy testLib2tmp1.h testLib2tmp.h
)
# hdr_testLib2tmp needs testLib2tmp.h
add_custom_target(hdr_testLib2tmp DEPENDS testLib2tmp.h)
add_library(dep_testLib2tmp UNKNOWN IMPORTED)
set_property(TARGET dep_testLib2tmp PROPERTY
IMPORTED_LOCATION ${CMAKE_CURRENT_BINARY_DIR}/testLib2tmp.h)
# dep_testLib2tmp needs hdr_testLib2tmp
add_dependencies(dep_testLib2tmp hdr_testLib2tmp)
# testLib2.h needs dep_testLib2tmp
add_custom_command(
OUTPUT testLib2.h
VERBATIM COMMAND ${CMAKE_COMMAND} -E copy testLib2tmp.h testLib2.h
DEPENDS dep_testLib2tmp
)
# hdr_testLib2 needs testLib2.h
add_custom_target(hdr_testLib2 DEPENDS testLib2.h)
add_library(dep_testLib2 UNKNOWN IMPORTED)
# dep_testLib2 needs hdr_testLib2
add_dependencies(dep_testLib2 hdr_testLib2)
# exp_testLib2 and bld_testLib2 both need dep_testLib2
add_dependencies(bld_testLib2 dep_testLib2)
add_dependencies(exp_testLib2 dep_testLib2)
#-----------------------------------------------------------------------------
# Create a library to be linked by another directory in this project
# to test transitive linking to otherwise invisible imported targets.
include_directories(${CMAKE_CURRENT_BINARY_DIR})
add_library(imp_lib1 STATIC imp_lib1.c)
target_link_libraries(imp_lib1 exp_testLib2)
add_library(imp_lib1b STATIC imp_lib1.c)
target_link_libraries(imp_lib1b bld_testLib2)
#-----------------------------------------------------------------------------
# Test that handling imported targets, including transitive dependencies,
# works in CheckFunctionExists (...and hopefully all other try_compile() checks
include(CheckFunctionExists)
unset(HAVE_TESTLIB1_FUNCTION CACHE)
set(CMAKE_REQUIRED_LIBRARIES exp_testLib2)
check_function_exists(testLib1 HAVE_TESTLIB1_FUNCTION)
if (NOT HAVE_TESTLIB1_FUNCTION)
message(SEND_ERROR "Using imported target testLib2 in check_function_exists() failed !")
endif()
#-----------------------------------------------------------------------------
# Test that dependent imported targets have usable
# INTERFACE_COMPILE_DEFINITIONS and INTERFACE_INCLUDE_DIRECTORIES
add_executable(deps_iface deps_iface.c)
target_link_libraries(deps_iface testLibDepends)
add_executable(deps_shared_iface deps_shared_iface.cpp)
target_link_libraries(deps_shared_iface testSharedLibDepends)
target_compile_definitions(deps_shared_iface
PRIVATE
$<$<BOOL:$<TARGET_PROPERTY:POSITION_INDEPENDENT_CODE>>:PIC_PROPERTY_IS_ON>
$<$<BOOL:$<TARGET_PROPERTY:CUSTOM_PROP>>:CUSTOM_PROPERTY_IS_ON>
$<$<STREQUAL:$<TARGET_PROPERTY:CUSTOM_STRING>,testcontent>:CUSTOM_STRING_IS_MATCH>
)
if (APPLE OR CMAKE_CXX_COMPILER_ID MATCHES "GNU")
include(CheckCXXCompilerFlag)
check_cxx_compiler_flag(-fPIE run_pic_test)
else()
if (CMAKE_CXX_COMPILER_ID MATCHES "PGI"
OR CMAKE_CXX_COMPILER_ID MATCHES "PathScale"
OR CMAKE_SYSTEM_NAME MATCHES "IRIX64"
OR CMAKE_CXX_COMPILER_ID MATCHES "Intel")
set(run_pic_test 0)
else()
set(run_pic_test 1)
endif()
endif()
if (run_pic_test)
target_compile_definitions(deps_shared_iface PRIVATE CHECK_PIC_WORKS)
endif()
#-----------------------------------------------------------------------------
# Test that targets imported from the build tree have their dependencies
# evaluated correctly. The above already tests the same for the install tree.
add_executable(deps_shared_iface2 deps_shared_iface.cpp)
target_link_libraries(deps_shared_iface2 bld_testSharedLibDepends bld_subdirlib)
target_compile_definitions(deps_shared_iface2
PRIVATE TEST_SUBDIR_LIB
$<$<BOOL:$<TARGET_PROPERTY:POSITION_INDEPENDENT_CODE>>:PIC_PROPERTY_IS_ON>
$<$<BOOL:$<TARGET_PROPERTY:CUSTOM_PROP>>:CUSTOM_PROPERTY_IS_ON>
$<$<STREQUAL:$<TARGET_PROPERTY:CUSTOM_STRING>,testcontent>:CUSTOM_STRING_IS_MATCH>
)
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