https://github.com/epoupon/fileshelter/pull/109/commits/c2f023133f4dd9d5826ea339bb6d278d33c389df
use cmake libdir to satisfy some sanity checks

diff -uNr a/src/libs/share/CMakeLists.txt b/src/libs/share/CMakeLists.txt
--- a/src/libs/share/CMakeLists.txt
+++ b/src/libs/share/CMakeLists.txt
@@ -28,5 +28,5 @@
 	Wt::Wt
 	)
 
-install(TARGETS filesheltershare DESTINATION lib)
+install(TARGETS filesheltershare DESTINATION ${CMAKE_INSTALL_LIBDIR})
 
diff -uNr a/src/libs/utils/CMakeLists.txt b/src/libs/utils/CMakeLists.txt
--- a/src/libs/utils/CMakeLists.txt
+++ b/src/libs/utils/CMakeLists.txt
@@ -27,5 +27,5 @@
 	Wt::Wt
 	)
 
-install(TARGETS fileshelterutils DESTINATION lib)
+install(TARGETS fileshelterutils DESTINATION ${CMAKE_INSTALL_LIBDIR})