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40 lines
1.8 KiB
CMake
40 lines
1.8 KiB
CMake
# - This module determines the zlib library of the system
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# The following variables are set if the library found:
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# ZLIB_FOUND - If false do nnt try to use zlib.
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# ZLIB_INCLUDE_DIR - where to find the headfile of library.
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# ZLIB_LIBRARY_DIR - where to find the zlib library.
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# ZLIB_LIBRARY - the library needed to use zlib.
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# find the headfile of library
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set (ZLIB_HEADS zlib.h)
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find_path (ZLIB_INCLUDE_DIR ${ZLIB_HEADS})
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set (ZLIB_NAMES z zlib libz zdll)
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find_library (ZLIB_LIBRARY NAMES ${ZLIB_NAMES})
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# just find one of dependency, guess other one.
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if (NOT ZLIB_LIBRARY AND ZLIB_INCLUDE_DIR)
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message ("We just find the headfile, try to guess the library location.")
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set (ZLIB_LIBRARY_DIR "${ZLIB_INCLUDE_DIR}/../lib")
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find_library (ZLIB_LIBRARY NAMES ${ZLIB_NAMES} PATHS ${ZLIB_LIBRARY_DIR})
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elseif (NOT ZLIB_INCLUDE_DIR AND ZLIB_LIBRARY)
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message ("We just find the lib file, try to guess the include location.")
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string (REGEX REPLACE "[a-z|A-Z|0-9|_|-]+[.].*$" "" ZLIB_LIBRARY_DIR ${ZLIB_LIBRARY})
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find_path (ZLIB_INCLUDE_DIR ${ZLIB_HEADS} "${ZLIB_LIBRARY_DIR}../included")
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endif()
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# find the library.
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if (ZLIB_INCLUDE_DIR AND ZLIB_LIBRARY)
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set (ZLIB_FOUND TRUE)
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if (NOT ZLIB_LIBRARY_DIR)
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string (REGEX REPLACE "[a-z|A-Z|0-9|_|-]+[.].*$" "" ZLIB_LIBRARY_DIR ${ZLIB_LIBRARY})
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endif ()
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string (REGEX MATCH "[a-z|A-Z|0-9|_|-]+[.](a|so|lib|dll|LIB|DLL)[^/]*$" ZLIB_LIBRARY_WHOLE_NAME "${ZLIB_LIBRARY}")
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string (REGEX MATCH "[^(lib)][a-z|A-Z|0-9|_|-]*" ZLIB_LIBRARY_NAME ${ZLIB_LIBRARY_WHOLE_NAME})
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message (STATUS "Find ZLIB include in ${ZLIB_INCLUDE_DIR}")
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message (STATUS "Find ZLIB library in ${ZLIB_LIBRARY}")
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else ()
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#set (ZLIB_FOUND FALSE)
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message (STATUS "Could NOT find ZLIB, (missing: ZLIB_INCLUDE_DIR ZLIB_LIBRARY)")
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endif ()
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