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0020ad7d99
Some versions of libunwind need liblzma. If liblzma is found, we link against it unconditionally. If the installed libunwind didn't need it, this is a nop. Tested and fine tuned by iDunk
41 lines
1.6 KiB
CMake
41 lines
1.6 KiB
CMake
# - Try to find libunwind
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# Once done this will define
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#
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# LIBUNWIND_FOUND - system has libunwind
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# LIBUNWIND_INCLUDE_DIR - the libunwind include directory
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# LIBUNWIND_LIBRARIES - Link these to use libunwind
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# LIBUNWIND_DEFINITIONS - Compiler switches required for using libunwind
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# Copyright (c) 2006, Alexander Dymo, <adymo@kdevelop.org>
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#
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# Redistribution and use is allowed according to the terms of the BSD license.
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# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
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find_path(LIBUNWIND_INCLUDE_DIR libunwind.h
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/usr/include
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/usr/local/include
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)
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find_library(LIBUNWIND_LIBRARIES NAMES unwind )
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if(NOT LIBUNWIND_LIBRARIES STREQUAL "LIBUNWIND_LIBRARIES-NOTFOUND")
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if (CMAKE_COMPILER_IS_GNUCC)
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set(LIBUNWIND_LIBRARIES "gcc_eh;${LIBUNWIND_LIBRARIES}")
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endif()
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endif()
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# some versions of libunwind need liblzma, and we don't use pkg-config
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# so we just look whether liblzma is installed, and add it if it is.
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# It might not be actually needed, but doesn't hurt if it is not.
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# We don't need any headers, just the lib, as it's privately needed.
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message(STATUS "looking for liblzma")
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find_library(LIBLZMA_LIBRARIES lzma )
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if(NOT LIBLZMA_LIBRARIES STREQUAL "LIBLZMA_LIBRARIES-NOTFOUND")
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message(STATUS "liblzma found")
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set(LIBUNWIND_LIBRARIES "${LIBUNWIND_LIBRARIES};${LIBLZMA_LIBRARIES}")
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endif()
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(Libunwind "Could not find libunwind" LIBUNWIND_INCLUDE_DIR LIBUNWIND_LIBRARIES)
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# show the LIBUNWIND_INCLUDE_DIR and LIBUNWIND_LIBRARIES variables only in the advanced view
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mark_as_advanced(LIBUNWIND_INCLUDE_DIR LIBUNWIND_LIBRARIES )
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