CMakeLists.txt 2.4 KB
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cmake_minimum_required (VERSION 2.6)
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cmake_policy(SET CMP0054 NEW)
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project(Plugin)
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# We need proper C++98 support from the compiler
set(CMAKE_CXX_STANDARD 98)

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# Test per-target output directory properties.
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set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${Plugin_BINARY_DIR}/bin)
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${Plugin_BINARY_DIR}/lib/plugin)
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${Plugin_BINARY_DIR}/lib/static)
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# We need the dynamic loader support from KWSys to load the plugin in
# the executable.
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set(KWSYS_NAMESPACE kwsys)
set(KWSYS_HEADER_ROOT ${Plugin_BINARY_DIR}/include)
set(KWSYS_USE_DynamicLoader 1)
add_subdirectory(${Plugin_SOURCE_DIR}/../../Source/kwsys src/kwsys)
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# Configure the location of plugins.
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configure_file(${Plugin_SOURCE_DIR}/src/example_exe.h.in
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               ${Plugin_BINARY_DIR}/include/example_exe.h @ONLY)

# We need to include headers from the source tree and configured
# headers in the build tree.
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include_directories(
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  ${Plugin_BINARY_DIR}/include
  ${Plugin_SOURCE_DIR}/include
  )

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# Clang/C2 in C++98 mode cannot properly handle some of MSVC headers
if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang" AND
    CMAKE_CXX_SIMULATE_ID STREQUAL "MSVC")
  set(CMAKE_CXX_STANDARD 11)
endif()

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# Create an executable that exports an API for use by plugins.
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add_executable(example_exe src/example_exe.cxx)
set_target_properties(example_exe PROPERTIES
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  ENABLE_EXPORTS 1
  OUTPUT_NAME example
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  # Test placing exe import library in unique directory.
  ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_ARCHIVE_OUTPUT_DIRECTORY}/exe
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  )
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target_link_libraries(example_exe kwsys)
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# Create a plugin that uses the API provided by the executable.
# This module "links" to the executable to use the symbols.
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add_library(example_mod_1 MODULE src/example_mod_1.c)
target_link_libraries(example_mod_1 example_exe)
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if(CMAKE_SHARED_LIBRARY_SONAME_C_FLAG AND
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    "${CMAKE_C_CREATE_SHARED_MODULE}" MATCHES "SONAME_FLAG")
  # Verify that targets export with proper IMPORTED SONAME properties.
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  export(TARGETS example_mod_1 NAMESPACE exp_
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    FILE ${CMAKE_CURRENT_BINARY_DIR}/mods.cmake)

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  include(ExternalProject)
  ExternalProject_Add(PluginTest
    SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/PluginTest"
    BINARY_DIR "${CMAKE_CURRENT_BINARY_DIR}/PluginTest"
    DOWNLOAD_COMMAND ""
    INSTALL_COMMAND ""
  )
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  add_dependencies(PluginTest example_mod_1)
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endif()
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# TODO:
#  - create a plugin that links to a static lib
#  - create a plugin that links to a shared lib