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41 lines
1.7 KiB
CMake
41 lines
1.7 KiB
CMake
# - This module determines the jpeg library of the system
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# The following variables are set if the library found:
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# JPEG_FOUND - If false do nnt try to use jpeg.
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# JPEG_INCLUDE_DIR - where to find the headfile of library.
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# JPEG_LIBRARY_DIR - where to find the jpeg library.
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# JPEG_LIBRARY - the library needed to use jpeg.
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# find the headfile of library
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set (JPEG_HEADS jpeglib.h)
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find_path (JPEG_INCLUDE_DIR ${JPEG_HEADS})
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set (JPEG_NAMES jpeg libjpeg)
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find_library (JPEG_LIBRARY NAMES ${JPEG_NAMES})
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# just find one of dependency, guess other one.
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if (NOT JPEG_LIBRARY AND JPEG_INCLUDE_DIR)
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message ("We just find the headfile, try to guess the library location.")
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set (JPEG_LIBRARY_DIR "${JPEG_INCLUDE_DIR}/../lib")
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find_library (JPEG_LIBRARY NAMES ${JPEG_NAMES} PATHS ${JPEG_LIBRARY_DIR})
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elseif (NOT JPEG_INCLUDE_DIR AND JPEG_LIBRARY)
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message ("We just find the lib file, try to guess the include location.")
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string (REGEX REPLACE "[a-z|A-Z|0-9|_|-]+[.].*$" "" JPEG_LIBRARY_DIR ${JPEG_LIBRARY})
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find_path (JPEG_INCLUDE_DIR ${JPEG_HEADS} "${JPEG_LIBRARY_DIR}../included")
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endif()
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# find the library.
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if (JPEG_INCLUDE_DIR AND JPEG_LIBRARY)
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set (JPEG_FOUND TRUE)
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if (NOT JPEG_LIBRARY_DIR)
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string (REGEX REPLACE "[a-z|A-Z|0-9|_|-]+[.].*$" "" JPEG_LIBRARY_DIR ${JPEG_LIBRARY})
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endif ()
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string (REGEX MATCH "[a-z|A-Z|0-9|_|-]+[.](a|so|lib|dll|LIB|DLL)[^/]*$" JPEG_LIBRARY_WHOLE_NAME "${JPEG_LIBRARY}")
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string (REGEX MATCH "[^(lib)][a-z|A-Z|0-9|_|-]+" JPEG_LIBRARY_NAME ${JPEG_LIBRARY_WHOLE_NAME})
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message (STATUS "Find JPEG include in ${JPEG_INCLUDE_DIR}")
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message (STATUS "Find JPEG library in ${JPEG_LIBRARY}")
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else ()
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message (STATUS "Could NOT find JPEG, (missing: JPEG_INCLUDE_DIR JPEG_LIBRARY)")
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endif ()
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