diff -Nur 2.1.2.3/CLHEP.orig/cmake/Modules/ClhepBuildLibrary.cmake 2.1.2.3/CLHEP/cmake/Modules/ClhepBuildLibrary.cmake
--- 2.1.2.3/CLHEP.orig/cmake/Modules/ClhepBuildLibrary.cmake	2012-06-27 20:47:44.000000000 +0100
+++ 2.1.2.3/CLHEP/cmake/Modules/ClhepBuildLibrary.cmake	2012-06-27 23:49:13.000000000 +0100
@@ -47,8 +47,8 @@
   # Install the libraries
   INSTALL (TARGETS ${package} ${package}S
       RUNTIME DESTINATION bin
-      LIBRARY DESTINATION lib
-      ARCHIVE DESTINATION lib
+      LIBRARY DESTINATION lib${LIB_SUFFIX}
+      ARCHIVE DESTINATION lib${LIB_SUFFIX}
       ) 
 endmacro(clhep_build_library)
 
@@ -78,22 +78,22 @@
   INSTALL(TARGETS CLHEP CLHEPS
       EXPORT CLHEPLibraryDepends
       RUNTIME DESTINATION bin
-      LIBRARY DESTINATION lib
-      ARCHIVE DESTINATION lib
+      LIBRARY DESTINATION lib${LIB_SUFFIX}
+      ARCHIVE DESTINATION lib${LIB_SUFFIX}
       ) 
 
   if( ${CMAKE_SYSTEM_NAME} MATCHES "Windows" )
       # copy
       file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/clhep_static_symlink 
-        	 "exec_program(${CMAKE_COMMAND} ARGS -E chdir ${CMAKE_INSTALL_PREFIX}/lib; ${CMAKE_COMMAND} ARGS -E copy ${CMAKE_STATIC_LIBRARY_PREFIX}CLHEP-${VERSION}${CMAKE_STATIC_LIBRARY_SUFFIX} ${CMAKE_STATIC_LIBRARY_PREFIX}CLHEP${CMAKE_STATIC_LIBRARY_SUFFIX} )" )
+        	 "exec_program(${CMAKE_COMMAND} ARGS -E chdir $ENV{CMAKE_INSTALL_PREFIX}/lib${LIB_SUFFIX}; ${CMAKE_COMMAND} ARGS -E copy ${CMAKE_STATIC_LIBRARY_PREFIX}CLHEP-${VERSION}${CMAKE_STATIC_LIBRARY_SUFFIX} ${CMAKE_STATIC_LIBRARY_PREFIX}CLHEP${CMAKE_STATIC_LIBRARY_SUFFIX} )" )
       file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/clhep_shared_symlink 
-        	 "exec_program(${CMAKE_COMMAND} ARGS -E chdir ${CMAKE_INSTALL_PREFIX}/bin; ${CMAKE_COMMAND} ARGS -E copy ${CMAKE_SHARED_LIBRARY_PREFIX}CLHEP-${VERSION}${CMAKE_SHARED_LIBRARY_SUFFIX} ${CMAKE_SHARED_LIBRARY_PREFIX}CLHEP${CMAKE_SHARED_LIBRARY_SUFFIX} )" )
+        	 "exec_program(${CMAKE_COMMAND} ARGS -E chdir $ENV{DESTDIR}${CMAKE_INSTALL_PREFIX}/bin; ${CMAKE_COMMAND} ARGS -E copy ${CMAKE_SHARED_LIBRARY_PREFIX}CLHEP-${VERSION}${CMAKE_SHARED_LIBRARY_SUFFIX} ${CMAKE_SHARED_LIBRARY_PREFIX}CLHEP${CMAKE_SHARED_LIBRARY_SUFFIX} )" )
   else()
       # create the symbolic links
       file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/clhep_static_symlink 
-        	 "exec_program(${CMAKE_COMMAND} ARGS -E chdir ${CMAKE_INSTALL_PREFIX}/lib; ${CMAKE_COMMAND} ARGS -E create_symlink ${CMAKE_STATIC_LIBRARY_PREFIX}CLHEP-${VERSION}${CMAKE_STATIC_LIBRARY_SUFFIX} ${CMAKE_STATIC_LIBRARY_PREFIX}CLHEP${CMAKE_STATIC_LIBRARY_SUFFIX} )" )
+        	 "exec_program(${CMAKE_COMMAND} ARGS -E chdir $ENV{DESTDIR}${CMAKE_INSTALL_PREFIX}/lib${LIB_SUFFIX}; ${CMAKE_COMMAND} ARGS -E create_symlink ${CMAKE_STATIC_LIBRARY_PREFIX}CLHEP-${VERSION}${CMAKE_STATIC_LIBRARY_SUFFIX} ${CMAKE_STATIC_LIBRARY_PREFIX}CLHEP${CMAKE_STATIC_LIBRARY_SUFFIX} )" )
       file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/clhep_shared_symlink 
-        	 "exec_program(${CMAKE_COMMAND} ARGS -E chdir ${CMAKE_INSTALL_PREFIX}/lib; ${CMAKE_COMMAND} ARGS -E create_symlink ${CMAKE_SHARED_LIBRARY_PREFIX}CLHEP-${VERSION}${CMAKE_SHARED_LIBRARY_SUFFIX} ${CMAKE_SHARED_LIBRARY_PREFIX}CLHEP${CMAKE_SHARED_LIBRARY_SUFFIX} )" )
+        	 "exec_program(${CMAKE_COMMAND} ARGS -E chdir $ENV{DESTDIR}${CMAKE_INSTALL_PREFIX}/lib${LIB_SUFFIX}; ${CMAKE_COMMAND} ARGS -E create_symlink ${CMAKE_SHARED_LIBRARY_PREFIX}CLHEP-${VERSION}${CMAKE_SHARED_LIBRARY_SUFFIX} ${CMAKE_SHARED_LIBRARY_PREFIX}CLHEP${CMAKE_SHARED_LIBRARY_SUFFIX} )" )
   endif()
 
   INSTALL(SCRIPT ${CMAKE_CURRENT_BINARY_DIR}/clhep_static_symlink )
diff -Nur 2.1.2.3/CLHEP.orig/cmake/Modules/ClhepToolchain.cmake 2.1.2.3/CLHEP/cmake/Modules/ClhepToolchain.cmake
--- 2.1.2.3/CLHEP.orig/cmake/Modules/ClhepToolchain.cmake	2012-06-27 20:47:44.000000000 +0100
+++ 2.1.2.3/CLHEP/cmake/Modules/ClhepToolchain.cmake	2012-06-27 23:39:28.000000000 +0100
@@ -63,7 +63,7 @@
 #
 set(CLHEP_PKGCONFIG_PREFIX ${PROJECT_BINARY_DIR})
 set(CLHEP_PKGCONFIG_INCLUDEDIR ${CLHEP_INCLUDE_DIR})
-set(CLHEP_PKGCONFIG_LIBDIR ${PROJECT_BINARY_DIR}/lib)
+set(CLHEP_PKGCONFIG_LIBDIR ${PROJECT_BINARY_DIR}/lib${LIB_SUFFIX})
 
 configure_file(${PROJECT_SOURCE_DIR}/cmake/Templates/clhep.pc.in
   ${PROJECT_BINARY_DIR}/clhep.pc
@@ -84,7 +84,7 @@
 # We use a relative path from the directory where the CLHEPConfig.cmake
 # file is installed to the actual include dir. 
 file(RELATIVE_PATH _relincpath 
-  ${CMAKE_INSTALL_PREFIX}/lib/CLHEP-${VERSION}
+  ${CMAKE_INSTALL_PREFIX}/lib${LIB_SUFFIX}/CLHEP-${VERSION}
   ${CMAKE_INSTALL_PREFIX}/include
   )
 set(CLHEP_INCLUDE_DIR "\${_thisdir}/${_relincpath}")
@@ -111,7 +111,7 @@
 # If you later use GNUInstallDirs.cmake, this would need more work to
 # ensure accurate calculation of the relative path.
 set(CLHEP_PKGCONFIG_PREFIX "\${pcfiledir}/../..")
-set(CLHEP_PKGCONFIG_LIBDIR "\${prefix}/lib")
+set(CLHEP_PKGCONFIG_LIBDIR "\${prefix}/lib${LIB_SUFFIX}")
 set(CLHEP_PKGCONFIG_INCLUDEDIR "\${prefix}/include")
 
 configure_file(${PROJECT_SOURCE_DIR}/cmake/Templates/clhep.pc.in
@@ -129,16 +129,16 @@
 install(FILES
   ${PROJECT_BINARY_DIR}/InstallTreeFiles/CLHEPConfigVersion.cmake 
   ${PROJECT_BINARY_DIR}/InstallTreeFiles/CLHEPConfig.cmake 
-  DESTINATION lib/CLHEP-${VERSION}
+  DESTINATION lib${LIB_SUFFIX}/CLHEP-${VERSION}
   )
 
-install(EXPORT CLHEPLibraryDepends DESTINATION lib/CLHEP-${VERSION})
+install(EXPORT CLHEPLibraryDepends DESTINATION lib${LIB_SUFFIX}/CLHEP-${VERSION})
 
 # Install the pkg-config file. The choice of 'lib/pkgconfig' for the 
 # installation seems fairly standard.
 install(FILES
   ${PROJECT_BINARY_DIR}/InstallTreeFiles/clhep.pc
-  DESTINATION lib/pkgconfig
+  DESTINATION lib${LIB_SUFFIX}/pkgconfig
   )
 
 # - And we should be done...