Merge 56267 into 5.5-bugteam.

scripts/CMakeLists.txt

@@ -81,12 +81,11 @@ INSTALL(FILES
 )
 
 # TCMalloc hacks
-IF($ENV{MALLOC_LIB})
-  SET(MALLOC_LIB $ENV{MALLOC_LIB} CACHE STRING "malloc library")
-ENDIF()
-
 IF(MALLOC_LIB)
-  INSTALL(FILES ${MALLOC_LIB} DESTINATION lib OPTIONAL)
+  MESSAGE("Using tcmalloc '${MALLOC_LIB}'")
+  INSTALL(FILES ${MALLOC_LIB} DESTINATION ${INSTALL_LIBDIR} OPTIONAL)
+ELSE()
+  MESSAGE("No 'MALLOC_LIB' variable")
 ENDIF()
 
 IF(CMAKE_GENERATOR MATCHES "Makefiles")