Merge topic 'GNUInstallDirs_debian-multiarch-fix'
620939e4
GNUInstallDirs: Fix CMAKE_INSTALL_LIBDIR on Debian
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commit
0d2318dedd
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@ -85,7 +85,31 @@ if(NOT DEFINED CMAKE_INSTALL_LOCALSTATEDIR)
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set(CMAKE_INSTALL_LOCALSTATEDIR "var" CACHE PATH "modifiable single-machine data (var)")
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set(CMAKE_INSTALL_LOCALSTATEDIR "var" CACHE PATH "modifiable single-machine data (var)")
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endif()
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endif()
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if(NOT DEFINED CMAKE_INSTALL_LIBDIR)
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# We check if the variable was manually set and not cached, in order to
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# allow projects to set the values as normal variables before including
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# GNUInstallDirs to avoid having the entries cached or user-editable. It
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# replaces the "if(NOT DEFINED CMAKE_INSTALL_XXX)" checks in all the
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# other cases.
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# If CMAKE_INSTALL_LIBDIR is defined, if _libdir_set is false, then the
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# variable is a normal one, otherwise it is a cache one.
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get_property(_libdir_set CACHE CMAKE_INSTALL_LIBDIR PROPERTY TYPE SET)
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if(NOT DEFINED CMAKE_INSTALL_LIBDIR OR (_libdir_set
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AND DEFINED _GNUInstallDirs_LAST_CMAKE_INSTALL_PREFIX
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AND NOT "${_GNUInstallDirs_LAST_CMAKE_INSTALL_PREFIX}" STREQUAL "${CMAKE_INSTALL_PREFIX}"))
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# If CMAKE_INSTALL_LIBDIR is not defined, it is always executed.
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# Otherwise:
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# * if _libdir_set is false it is not executed (meaning that it is
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# not a cache variable)
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# * if _GNUInstallDirs_LAST_CMAKE_INSTALL_PREFIX is not defined it is
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# not executed
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# * if _GNUInstallDirs_LAST_CMAKE_INSTALL_PREFIX and
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# CMAKE_INSTALL_PREFIX are the same string it is not executed.
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# _GNUInstallDirs_LAST_CMAKE_INSTALL_PREFIX is updated after the
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# execution, of this part of code, therefore at the next inclusion
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# of the file, CMAKE_INSTALL_LIBDIR is defined, and the 2 strings
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# are equal, meaning that the if is not executed the code the
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# second time.
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set(_LIBDIR_DEFAULT "lib")
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set(_LIBDIR_DEFAULT "lib")
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# Override this default 'lib' with 'lib64' iff:
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# Override this default 'lib' with 'lib64' iff:
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# - we are on Linux system but NOT cross-compiling
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# - we are on Linux system but NOT cross-compiling
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@ -94,13 +118,30 @@ if(NOT DEFINED CMAKE_INSTALL_LIBDIR)
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# reason is: amd64 ABI: http://www.x86-64.org/documentation/abi.pdf
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# reason is: amd64 ABI: http://www.x86-64.org/documentation/abi.pdf
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# For Debian with multiarch, use 'lib/${CMAKE_LIBRARY_ARCHITECTURE}' if
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# For Debian with multiarch, use 'lib/${CMAKE_LIBRARY_ARCHITECTURE}' if
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# CMAKE_LIBRARY_ARCHITECTURE is set (which contains e.g. "i386-linux-gnu"
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# CMAKE_LIBRARY_ARCHITECTURE is set (which contains e.g. "i386-linux-gnu"
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# and CMAKE_INSTALL_PREFIX is "/usr"
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# See http://wiki.debian.org/Multiarch
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# See http://wiki.debian.org/Multiarch
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if(DEFINED _GNUInstallDirs_LAST_CMAKE_INSTALL_PREFIX)
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set(__LAST_LIBDIR_DEFAULT "lib")
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# __LAST_LIBDIR_DEFAULT is the default value that we compute from
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# _GNUInstallDirs_LAST_CMAKE_INSTALL_PREFIX, not a cache entry for
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# the value that was last used as the default.
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# This value is used to figure out whether the user changed the
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# CMAKE_INSTALL_LIBDIR value manually, or if the value was the
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# default one. When CMAKE_INSTALL_PREFIX changes, the value is
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# updated to the new default, unless the user explicitly changed it.
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endif()
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if(CMAKE_SYSTEM_NAME MATCHES "^(Linux|kFreeBSD|GNU)$"
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if(CMAKE_SYSTEM_NAME MATCHES "^(Linux|kFreeBSD|GNU)$"
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AND NOT CMAKE_CROSSCOMPILING)
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AND NOT CMAKE_CROSSCOMPILING)
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if (EXISTS "/etc/debian_version") # is this a debian system ?
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if (EXISTS "/etc/debian_version") # is this a debian system ?
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if(CMAKE_LIBRARY_ARCHITECTURE)
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if(CMAKE_LIBRARY_ARCHITECTURE)
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set(_LIBDIR_DEFAULT "lib/${CMAKE_LIBRARY_ARCHITECTURE}")
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if("${CMAKE_INSTALL_PREFIX}" MATCHES "^/usr/?$")
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endif()
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set(_LIBDIR_DEFAULT "lib/${CMAKE_LIBRARY_ARCHITECTURE}")
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endif()
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if(DEFINED _GNUInstallDirs_LAST_CMAKE_INSTALL_PREFIX
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AND "${_GNUInstallDirs_LAST_CMAKE_INSTALL_PREFIX}" MATCHES "^/usr/?$")
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set(__LAST_LIBDIR_DEFAULT "lib/${CMAKE_LIBRARY_ARCHITECTURE}")
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endif()
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endif()
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else() # not debian, rely on CMAKE_SIZEOF_VOID_P:
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else() # not debian, rely on CMAKE_SIZEOF_VOID_P:
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if(NOT DEFINED CMAKE_SIZEOF_VOID_P)
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if(NOT DEFINED CMAKE_SIZEOF_VOID_P)
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message(AUTHOR_WARNING
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message(AUTHOR_WARNING
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@ -109,12 +150,25 @@ if(NOT DEFINED CMAKE_INSTALL_LIBDIR)
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else()
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else()
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if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
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if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
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set(_LIBDIR_DEFAULT "lib64")
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set(_LIBDIR_DEFAULT "lib64")
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if(DEFINED _GNUInstallDirs_LAST_CMAKE_INSTALL_PREFIX)
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set(__LAST_LIBDIR_DEFAULT "lib64")
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endif()
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endif()
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endif()
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endif()
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endif()
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endif()
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endif()
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endif()
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endif()
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set(CMAKE_INSTALL_LIBDIR "${_LIBDIR_DEFAULT}" CACHE PATH "object code libraries (${_LIBDIR_DEFAULT})")
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if(NOT DEFINED CMAKE_INSTALL_LIBDIR)
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set(CMAKE_INSTALL_LIBDIR "${_LIBDIR_DEFAULT}" CACHE PATH "object code libraries (${_LIBDIR_DEFAULT})")
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elseif(DEFINED __LAST_LIBDIR_DEFAULT
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AND "${__LAST_LIBDIR_DEFAULT}" STREQUAL "${CMAKE_INSTALL_LIBDIR}")
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set_property(CACHE CMAKE_INSTALL_LIBDIR PROPERTY VALUE "${_LIBDIR_DEFAULT}")
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endif()
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endif()
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endif()
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# Save for next run
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set(_GNUInstallDirs_LAST_CMAKE_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}" CACHE INTERNAL "CMAKE_INSTALL_PREFIX during last run")
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unset(_libdir_set)
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unset(__LAST_LIBDIR_DEFAULT)
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if(NOT DEFINED CMAKE_INSTALL_INCLUDEDIR)
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if(NOT DEFINED CMAKE_INSTALL_INCLUDEDIR)
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set(CMAKE_INSTALL_INCLUDEDIR "include" CACHE PATH "C header files (include)")
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set(CMAKE_INSTALL_INCLUDEDIR "include" CACHE PATH "C header files (include)")
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