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cmake_minimum_required(VERSION 2.8)
project(LinkDirectory C)
# Put the subproject source tree in our build tree so it can refer to
# link directories relative to its source.
if(NOT "${LinkDirectory_SOURCE_DIR}" STREQUAL "${LinkDirectory_BINARY_DIR}")
file(COPY External/ DESTINATION External PATTERN CVS EXCLUDE)
endif()
# Build a library into the subproject source tree.
add_library(mylibA STATIC mylibA.c)
set_property(TARGET mylibA PROPERTY
ARCHIVE_OUTPUT_DIRECTORY "${LinkDirectory_BINARY_DIR}/External/lib")
get_property(mylibA TARGET mylibA PROPERTY LOCATION)
# Build a library into our build tree relative to the subproject build tree.
add_library(mylibB STATIC mylibB.c)
set_property(TARGET mylibB PROPERTY
ARCHIVE_OUTPUT_DIRECTORY "${LinkDirectory_BINARY_DIR}/lib")
get_property(mylibB TARGET mylibB PROPERTY LOCATION)
# Create a custom target to drive the subproject build.
include(ExternalProject)
ExternalProject_Add(ExternalTarget
SOURCE_DIR "${LinkDirectory_BINARY_DIR}/External"
BINARY_DIR "${LinkDirectory_BINARY_DIR}/External-build"
CMAKE_ARGS "-DCMAKE_RUNTIME_OUTPUT_DIRECTORY=${LinkDirectory_BINARY_DIR}/bin"
PREFIX "${LinkDirectory_BINARY_DIR}/External-build/root"
DOWNLOAD_COMMAND ""
INSTALL_COMMAND ""
)
# Add a step to wipe out the subproject executable after our libraries
# change. This is needed because the subproject cannot depend on them
# directly because it does not know the full paths to the libraries.
# (The purpose of this test is to check that link_directories works.)
ExternalProject_Add_Step(ExternalTarget cleanup
COMMAND ${CMAKE_COMMAND} -E remove_directory ${LinkDirectory_BINARY_DIR}/bin
DEPENDEES download
DEPENDERS configure
DEPENDS ${mylibA} ${mylibB}
"${LinkDirectory_BINARY_DIR}/External/CMakeLists.txt"
"${LinkDirectory_BINARY_DIR}/External/myexe.c"
)
# Make the subproject build after our targets.
add_dependencies(ExternalTarget mylibA mylibB)
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