Index: src/libslic3r/CMakeLists.txt
--- src/libslic3r/CMakeLists.txt.orig
+++ src/libslic3r/CMakeLists.txt
@@ -606,6 +606,7 @@ endif ()
 
 encoding_check(libslic3r)
 
+target_compile_definitions(libslic3r PUBLIC SLIC3R_FHS_LIBDIR="${CMAKE_INSTALL_FULL_LIBDIR}")
 target_compile_definitions(libslic3r PUBLIC -DUSE_TBB -DTBB_USE_CAPTURED_EXCEPTION=0)
 target_include_directories(libslic3r PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/.. ${CMAKE_CURRENT_BINARY_DIR})
 target_include_directories(libslic3r PUBLIC ${EXPAT_INCLUDE_DIRS})
