45 lines
1.9 KiB
CMake
45 lines
1.9 KiB
CMake
# Checks for deflate codec support
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#
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# Copyright © 2015 Open Microscopy Environment / University of Dundee
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# Copyright © 2021 Roger Leigh <rleigh@codelibre.net>
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# Written by Roger Leigh <rleigh@codelibre.net>
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#
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# Permission to use, copy, modify, distribute, and sell this software and
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# its documentation for any purpose is hereby granted without fee, provided
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# that (i) the above copyright notices and this permission notice appear in
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# all copies of the software and related documentation, and (ii) the names of
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# Sam Leffler and Silicon Graphics may not be used in any advertising or
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# publicity relating to the software without the specific, prior written
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# permission of Sam Leffler and Silicon Graphics.
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#
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# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
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# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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#
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# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
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# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
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# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
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# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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# OF THIS SOFTWARE.
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# ZLIB
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set(ZLIB_SUPPORT FALSE)
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find_package(ZLIB)
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option(zlib "use zlib (required for Deflate compression)" ${ZLIB_FOUND})
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if(zlib AND ZLIB_FOUND)
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set(ZLIB_SUPPORT TRUE)
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endif()
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set(ZIP_SUPPORT ${ZLIB_SUPPORT})
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# libdeflate
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set(LIBDEFLATE_SUPPORT FALSE)
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find_package(Deflate)
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option(libdeflate "use libdeflate (optional for faster Deflate support, still requires zlib)" ${Deflate_FOUND})
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if (libdeflate AND Deflate_FOUND AND ZIP_SUPPORT)
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set(LIBDEFLATE_SUPPORT TRUE)
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endif()
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if(Deflate_FOUND AND NOT ZIP_SUPPORT)
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message(WARNING "libdeflate available but zlib is not. libdeflate cannot be used")
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endif()
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