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