File fix-lib-install-dir.patch of Package clessc

--- a/libless/CMakeLists.txt	2018-10-24 11:16:08.000000000 +0200
+++ b/libless/CMakeLists.txt	2018-10-24 11:27:34.157553009 +0200
@@ -59,7 +59,7 @@
 add_library(less SHARED ${less_SOURCES})
 target_include_directories(less PUBLIC include)
 
-install(TARGETS less LIBRARY DESTINATION lib)
+install(TARGETS less LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR})
 install(DIRECTORY include/less DESTINATION include)
 
 find_package(PNG 1.2)