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Astatin3
53 lines
2.0 KiB
CMake
53 lines
2.0 KiB
CMake
# Add zlib library
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# We first try to find zlib in the system
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if(NOT BOTCRAFT_FORCE_LOCAL_ZLIB)
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find_package(ZLIB QUIET)
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endif()
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# If not found, build from sources
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if(NOT TARGET ZLIB::ZLIB)
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set(ZLIB_SRC_PATH "${CMAKE_CURRENT_SOURCE_DIR}/3rdparty/zlib/")
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set(ZLIB_BUILD_PATH "${CMAKE_CURRENT_BINARY_DIR}/3rdparty/zlib")
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file(GLOB RESULT "${ZLIB_BUILD_PATH}/install")
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list(LENGTH RESULT RES_LEN)
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if(RES_LEN EQUAL 0)
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message(STATUS "Can't find Zlib, cloning and building it from sources")
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file(GLOB RESULT "${ZLIB_SRC_PATH}")
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list(LENGTH RESULT RES_LEN)
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if(RES_LEN EQUAL 0)
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execute_process(COMMAND git submodule update --init -- 3rdparty/zlib WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}")
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endif()
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file(MAKE_DIRECTORY "${ZLIB_BUILD_PATH}")
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execute_process(
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COMMAND "${CMAKE_COMMAND}" "${ZLIB_SRC_PATH}" "-G" "${CMAKE_GENERATOR}" "-A" "${CMAKE_GENERATOR_PLATFORM}" "-DCMAKE_MAKE_PROGRAM=${CMAKE_MAKE_PROGRAM}" "-DCMAKE_BUILD_TYPE=Release" "-DCMAKE_INSTALL_PREFIX=install" "-DCMAKE_POSITION_INDEPENDENT_CODE=ON"
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WORKING_DIRECTORY "${ZLIB_BUILD_PATH}")
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execute_process(COMMAND "${CMAKE_COMMAND}" "--build" "." "--target" "install" "--parallel" "2" "--config" "Release" WORKING_DIRECTORY "${ZLIB_BUILD_PATH}")
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endif()
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# Find the freshly built library
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# From 3.24 there is a cmake option to find zlib static
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# but before, we need to do it in a more manual way
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if(${CMAKE_VERSION} VERSION_LESS "3.24.0")
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set(_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
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set(CMAKE_FIND_LIBRARY_SUFFIXES "static.lib" ".a")
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else()
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set(ZLIB_USE_STATIC_LIBS "ON")
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endif()
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set(ZLIB_ROOT "${ZLIB_BUILD_PATH}/install")
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find_package(ZLIB QUIET)
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# Revert library suffix to what they were
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if(${CMAKE_VERSION} VERSION_LESS "3.24.0")
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set(CMAKE_FIND_LIBRARY_SUFFIXES ${_CMAKE_FIND_LIBRARY_SUFFIXES})
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unset(_CMAKE_FIND_LIBRARY_SUFFIXES)
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endif()
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endif()
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