CMAKE_LANG_LIBRARY_ARCHITECTURE
CMAKE_<LANG>_LIBRARY_ARCHITECTURE
Target architecture library directory name detected for <LANG>
.
If the <LANG>
compiler passes to the linker an architecture-specific system library search directory such as <prefix>/lib/<arch>
this variable contains the <arch>
name if/as detected by CMake.
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Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.7/variable/CMAKE_LANG_LIBRARY_ARCHITECTURE.html