mirror of https://git.tukaani.org/xz.git
CMake: Handle symbol versioning on MicroBlaze specially.
This is to match configure.ac.
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@ -1119,8 +1119,22 @@ if(WIN32)
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# Disable __declspec(dllimport) when linking against static liblzma.
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target_compile_definitions(liblzma INTERFACE LZMA_API_STATIC)
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endif()
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elseif(BUILD_SHARED_LIBS AND CMAKE_SYSTEM_NAME STREQUAL "Linux")
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elseif(BUILD_SHARED_LIBS AND CMAKE_SYSTEM_NAME STREQUAL "Linux" AND
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NOT CMAKE_SYSTEM_PROCESSOR MATCHES "[Mm]icro[Bb]laze")
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# GNU/Linux-specific symbol versioning for shared liblzma.
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# This includes a few extra compatibility symbols for RHEL/CentOS 7
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# which are pointless on non-glibc non-Linux systems.
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#
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# As a special case, GNU/Linux on MicroBlaze gets the generic
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# symbol versioning because GCC 12 doesn't support the __symver__
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# attribute on MicroBlaze. On Linux, CMAKE_SYSTEM_PROCESSOR comes
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# from "uname -m" for native builds (should be "microblaze") or from
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# the CMake toolchain file (not perfectly standardized but it very
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# likely has "microblaze" in lower case or mixed case somewhere in
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# the string).
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#
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# FIXME? Avoid symvers on Linux with non-glibc like musl?
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#
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# Note that adding link options doesn't affect static builds
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# but HAVE_SYMBOL_VERSIONS_LINUX must not be used with static builds
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# because it would put symbol versions into the static library which
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@ -1136,9 +1150,10 @@ elseif(BUILD_SHARED_LIBS AND CMAKE_SYSTEM_NAME STREQUAL "Linux")
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set_target_properties(liblzma PROPERTIES
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LINK_DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/src/liblzma/liblzma_linux.map"
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)
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elseif(BUILD_SHARED_LIBS AND CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
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# Symbol versioning for shared liblzma for non-GNU/Linux.
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# FIXME? What about Solaris?
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elseif(BUILD_SHARED_LIBS AND (CMAKE_SYSTEM_NAME STREQUAL "FreeBSD" OR
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CMAKE_SYSTEM_NAME STREQUAL "Linux"))
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# Generic symbol versioning for shared liblzma is used on FreeBSD and
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# also on GNU/Linux on MicroBlaze.
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target_link_options(liblzma PRIVATE
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"-Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/src/liblzma/liblzma_generic.map"
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)
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