35 lines
1.5 KiB
CMake
35 lines
1.5 KiB
CMake
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if (WIN32)
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# In Windows, we use custom way to import ZLib.
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# Before using this CMake file in Windows, you should do following steps first.
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# 1. Get ZLib repository: https://github.com/madler/zlib
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# 2. Navigate to `contrib/vstudio` and choose a proper Visual Studio project according to your environment.
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# 3. Open project file and build. Then you will get the built binary.
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# 4. The directory binary located is the argument you should passed to ZLIB_BINARY_PATH, for example: `contrib/vstudio/vc14/x64/ZlibDllRelease`
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# Check ZLib path variable
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if (NOT DEFINED ZLIB_HEADER_PATH)
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message(FATAL_ERROR "You must set ZLIB_HEADER_PATH to the root directory of ZLib repository.")
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endif()
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if (NOT DEFINED ZLIB_BINARY_PATH)
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message(FATAL_ERROR "You must set ZLIB_BINARY_PATH to the directory where include binary built by contributed Visual Studio project.")
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endif()
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# Add imported library
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add_library(ZLIB INTERFACE IMPORTED)
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# Add alias for it to let it has the same behavior with CMake imported ZLib.
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add_library(ZLIB::ZLIB ALIAS ZLIB)
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# Setup header files
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set_target_properties(ZLIB PROPERTIES
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INTERFACE_INCLUDE_DIRECTORIES
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"${ZLIB_HEADER_PATH}"
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)
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# Setup lib files
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set_target_properties(ZLIB PROPERTIES
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INTERFACE_LINK_LIBRARIES
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"${ZLIB_BINARY_PATH}/zlibwapi.lib"
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)
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else ()
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# In non-Windows, we simply import ZLib from CMake preset.
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# It will produce ZLIB::ZLIB target for including and linking.
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find_package(ZLIB REQUIRED)
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endif ()
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