diff options
Diffstat (limited to 'cmake/modules/UseMultiArch.cmake')
| -rw-r--r-- | cmake/modules/UseMultiArch.cmake | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/cmake/modules/UseMultiArch.cmake b/cmake/modules/UseMultiArch.cmake new file mode 100644 index 0000000..06a4012 --- /dev/null +++ b/cmake/modules/UseMultiArch.cmake @@ -0,0 +1,42 @@ +# - Multiarch support in object code library directories +# +# This module sets the following variable +# CMAKE_INSTALL_LIBDIR to lib, lib64 or lib/x86_64-linux-gnu +# depending on the platform; use this path +# for platform-specific binaries. +# +# CMAKE_INSTALL_LIBDIR_NOARCH to lib or lib64 depending on the platform; +# use this path for architecture-independent +# files. +# +# Note that it will override the results of GNUInstallDirs if included after +# that module. + +# Fedora uses lib64/ for 64-bit systems, Debian uses lib/x86_64-linux-gnu; +# Fedora put module files in lib64/ too, but Debian uses lib/ for that +if ("${CMAKE_SYSTEM_NAME}" MATCHES "Linux") + # Debian or Ubuntu? + if (EXISTS "/etc/debian_version") + set (_libdir_def "lib/${CMAKE_LIBRARY_ARCHITECTURE}") + set (_libdir_noarch "lib") + else (EXISTS "/etc/debian_version") + # 64-bit system? + if (CMAKE_SIZEOF_VOID_P EQUAL 8) + set (_libdir_noarch "lib64") + else (CMAKE_SIZEOF_VOID_P EQUAL 8) + set (_libdir_noarch "lib") + endif (CMAKE_SIZEOF_VOID_P EQUAL 8) + set (_libdir_def "${_libdir_noarch}") + endif (EXISTS "/etc/debian_version") +else ("${CMAKE_SYSTEM_NAME}" MATCHES "Linux") + set (_libdir_def "lib") + set (_libdir_noarch "lib") +endif ("${CMAKE_SYSTEM_NAME}" MATCHES "Linux") + +# let the user override if somewhere else is desirable +set (CMAKE_INSTALL_LIBDIR "${_libdir_def}" CACHE PATH "Object code libraries") +set (CMAKE_INSTALL_LIBDIR_NOARCH "${_libdir_noarch}" CACHE PATH "Architecture-independent library files") +mark_as_advanced ( + CMAKE_INSTALL_LIBDIR + CMAKE_INSTALL_LIBDIR_NOARCH + ) |