diff -Nru aws-crt-cpp-0.18.3.orig/CMakeLists.txt aws-crt-cpp-0.18.3/CMakeLists.txt
--- aws-crt-cpp-0.18.3.orig/CMakeLists.txt	2022-08-25 01:22:44.000000000 +0000
+++ aws-crt-cpp-0.18.3/CMakeLists.txt	2022-09-06 07:07:36.220015929 +0000
@@ -48,11 +48,8 @@
     file(TO_CMAKE_PATH "${CMAKE_INSTALL_PREFIX}" CMAKE_INSTALL_PREFIX)
 endif()
 
-if (UNIX AND NOT APPLE)
-    include(GNUInstallDirs)
-elseif(NOT DEFINED CMAKE_INSTALL_LIBDIR)
-    set(CMAKE_INSTALL_LIBDIR "lib")
-endif()
+find_package(aws-c-common REQUIRED)
+set(CMAKE_MODULE_PATH ${aws-c-common_DIR})
 
 if (${CMAKE_INSTALL_LIBDIR} STREQUAL "lib64")
     set(FIND_LIBRARY_USE_LIB64_PATHS true)
@@ -340,7 +337,7 @@
 endif()
 
 install(EXPORT "${PROJECT_NAME}-targets"
-        DESTINATION "${CMAKE_INSTALL_LIBDIR}/${PROJECT_NAME}/cmake/${TARGET_DIR}"
+        DESTINATION "${LIB_INSTALL_DIR}/cmake/${CMAKE_PROJECT_NAME}/${TARGET_DIR}/"
         NAMESPACE AWS::
         COMPONENT Development)
 
@@ -359,11 +356,11 @@
 )
 
 install(FILES "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config.cmake"
-        DESTINATION "${CMAKE_INSTALL_LIBDIR}/${PROJECT_NAME}/cmake/"
+        DESTINATION "${LIB_INSTALL_DIR}/cmake/${CMAKE_PROJECT_NAME}"
         COMPONENT Development)
 
 install(FILES "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config-version.cmake"
-        DESTINATION "${CMAKE_INSTALL_LIBDIR}/${PROJECT_NAME}/cmake/"
+        DESTINATION "${LIB_INSTALL_DIR}/cmake/${CMAKE_PROJECT_NAME}"
         COMPONENT Development)