Index: opencascade-7.5.0/CMakeLists.txt
===================================================================
--- opencascade-7.5.0.orig/CMakeLists.txt
+++ opencascade-7.5.0/CMakeLists.txt
@@ -1156,7 +1156,7 @@ foreach (OCCT_CONFIGURATION ${CMAKE_CONF
 endforeach()
 # install OpenCASCADE config file with compile definitions and C/C++ flags ONLY for current configuration
 install (CODE "string (TOLOWER \"\${CMAKE_INSTALL_CONFIG_NAME}\" CMAKE_INSTALL_CONFIG_NAME_LOWER)")
-install (CODE "configure_file(\"${CMAKE_BINARY_DIR}/OpenCASCADECompileDefinitionsAndFlags-\${CMAKE_INSTALL_CONFIG_NAME_LOWER}.cmake\" \"${INSTALL_DIR}/${INSTALL_DIR_CMAKE}/OpenCASCADECompileDefinitionsAndFlags-\${CMAKE_INSTALL_CONFIG_NAME_LOWER}.cmake\" COPYONLY)")
+install (CODE "configure_file(\"${CMAKE_BINARY_DIR}/OpenCASCADECompileDefinitionsAndFlags-\${CMAKE_INSTALL_CONFIG_NAME_LOWER}.cmake\" \"$ENV{DESTDIR}/${INSTALL_DIR}/${INSTALL_DIR_CMAKE}/OpenCASCADECompileDefinitionsAndFlags-\${CMAKE_INSTALL_CONFIG_NAME_LOWER}.cmake\" COPYONLY)")
 
 foreach (OCCT_MODULE ${OCCT_MODULES})
   if (BUILD_MODULE_${OCCT_MODULE})
Index: opencascade-7.5.0/adm/templates/OpenCASCADEConfig.cmake.in
===================================================================
--- opencascade-7.5.0.orig/adm/templates/OpenCASCADEConfig.cmake.in
+++ opencascade-7.5.0/adm/templates/OpenCASCADEConfig.cmake.in
@@ -27,7 +27,7 @@ get_filename_component (OpenCASCADE_INST
 if (OpenCASCADE_INSTALL_PREFIX MATCHES "/cmake$")
   get_filename_component (OpenCASCADE_INSTALL_PREFIX "${OpenCASCADE_INSTALL_PREFIX}" PATH)
 endif()
-if (OpenCASCADE_INSTALL_PREFIX MATCHES "/lib$")
+if (OpenCASCADE_INSTALL_PREFIX MATCHES "/lib$" OR OpenCASCADE_INSTALL_PREFIX MATCHES "/lib64$")
   get_filename_component (OpenCASCADE_INSTALL_PREFIX "${OpenCASCADE_INSTALL_PREFIX}" PATH)
 endif()
 if (OpenCASCADE_INSTALL_PREFIX MATCHES "/libs/${CMAKE_ANDROID_ARCH_ABI}$")
Index: opencascade-7.5.0/adm/cmake/occt_toolkit.cmake
===================================================================
--- opencascade-7.5.0.orig/adm/cmake/occt_toolkit.cmake
+++ opencascade-7.5.0/adm/cmake/occt_toolkit.cmake
@@ -244,9 +244,9 @@ else()
 
   install (TARGETS ${PROJECT_NAME}
            EXPORT OpenCASCADE${CURRENT_MODULE}Targets
-           RUNTIME DESTINATION "${INSTALL_DIR_BIN}\${OCCT_INSTALL_BIN_LETTER}"
-           ARCHIVE DESTINATION "${INSTALL_DIR_LIB}\${OCCT_INSTALL_BIN_LETTER}"
-           LIBRARY DESTINATION "${INSTALL_DIR_LIB}\${OCCT_INSTALL_BIN_LETTER}")
+           RUNTIME DESTINATION "${INSTALL_DIR_BIN}"
+           ARCHIVE DESTINATION "${INSTALL_DIR_LIB}"
+           LIBRARY DESTINATION "${INSTALL_DIR_LIB}")
 
   if (NOT WIN32)
     if (BUILD_SHARED_LIBS AND NOT "${BUILD_SHARED_LIBRARY_NAME_POSTFIX}" STREQUAL "")