59 lines
2.6 KiB
CMake
59 lines
2.6 KiB
CMake
set(CMAKE_DL_LIBS "dl")
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set(CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG "-Wl,-rpath,")
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set(CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG_SEP ":")
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set(CMAKE_SHARED_LIBRARY_RPATH_LINK_C_FLAG "-Wl,-rpath-link,")
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set(CMAKE_SHARED_LIBRARY_SONAME_C_FLAG "-Wl,-soname,")
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set(CMAKE_EXE_EXPORTS_C_FLAG "-Wl,--export-dynamic")
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# Shared libraries with no builtin soname may not be linked safely by
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# specifying the file path.
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set(CMAKE_PLATFORM_USES_PATH_WHEN_NO_SONAME 1)
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# Initialize C link type selection flags. These flags are used when
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# building a shared library, shared module, or executable that links
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# to other libraries to select whether to use the static or shared
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# versions of the libraries.
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foreach(type SHARED_LIBRARY SHARED_MODULE EXE)
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set(CMAKE_${type}_LINK_STATIC_C_FLAGS "-Wl,-Bstatic")
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set(CMAKE_${type}_LINK_DYNAMIC_C_FLAGS "-Wl,-Bdynamic")
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endforeach()
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# Debian policy requires that shared libraries be installed without
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# executable permission. Fedora policy requires that shared libraries
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# be installed with the executable permission. Since the native tools
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# create shared libraries with execute permission in the first place a
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# reasonable policy seems to be to install with execute permission by
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# default. In order to support debian packages we provide an option
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# here. The option default is based on the current distribution, but
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# packagers can set it explicitly on the command line.
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if(DEFINED CMAKE_INSTALL_SO_NO_EXE)
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# Store the decision variable in the cache. This preserves any
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# setting the user provides on the command line.
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set(CMAKE_INSTALL_SO_NO_EXE "${CMAKE_INSTALL_SO_NO_EXE}" CACHE INTERNAL
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"Install .so files without execute permission.")
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else()
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# Store the decision variable as an internal cache entry to avoid
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# checking the platform every time. This option is advanced enough
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# that only package maintainers should need to adjust it. They are
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# capable of providing a setting on the command line.
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if(EXISTS "/etc/debian_version")
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set(CMAKE_INSTALL_SO_NO_EXE 1 CACHE INTERNAL
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"Install .so files without execute permission.")
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else()
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set(CMAKE_INSTALL_SO_NO_EXE 0 CACHE INTERNAL
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"Install .so files without execute permission.")
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endif()
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endif()
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# Match multiarch library directory names.
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set(CMAKE_LIBRARY_ARCHITECTURE_REGEX "[a-z0-9_]+(-[a-z0-9_]+)?-linux-gnu[a-z0-9_]*")
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include(Platform/UnixPaths)
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# Debian has lib32 and lib64 paths only for compatibility so they should not be
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# searched.
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if(NOT CMAKE_CROSSCOMPILING AND EXISTS "/etc/debian_version")
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set_property(GLOBAL PROPERTY FIND_LIBRARY_USE_LIB32_PATHS FALSE)
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set_property(GLOBAL PROPERTY FIND_LIBRARY_USE_LIB64_PATHS FALSE)
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endif()
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