typos in cmake -DWITH_ATOMIC_OPS=xxx

configure.cmake

@@ -960,7 +960,7 @@ IF(CMAKE_COMPILER_IS_GNUCXX)
 IF(WITH_ATOMIC_OPS STREQUAL "up")
   SET(MY_ATOMIC_MODE_DUMMY 1 CACHE BOOL "Assume single-CPU mode, no concurrency")
 ELSEIF(WITH_ATOMIC_OPS STREQUAL "rwlocks")
-  SET(MY_ATOMIC_MODE_RWLOCK 1 CACHE BOOL "Use pthread rwlocks for atomic ops")
+  SET(MY_ATOMIC_MODE_RWLOCKS 1 CACHE BOOL "Use pthread rwlocks for atomic ops")
 ELSEIF(WITH_ATOMIC_OPS STREQUAL "smp")
 ELSEIF(NOT WITH_ATOMIC_OPS)
   CHECK_CXX_SOURCE_COMPILES("
@@ -992,12 +992,12 @@ ELSE()
 ENDIF()
 ENDIF()
 
-SET(WITH_ATOMIC_LOCKS "${WITH_ATOMIC_LOCKS}" CACHE STRING
-"Implement atomic operations using pthread rwlocks or atomic CPU
-instructions for multi-processor or uniprocessor
+SET(WITH_ATOMIC_OPS "${WITH_ATOMIC_OPS}" CACHE STRING
+  "Implement atomic operations using pthread rwlocks (rwlocks); or atomic CPU
+instructions for multi-processor (smp) or uniprocessor (up)
 configuration. By default gcc built-in sync functions are used,
 if available and 'smp' configuration otherwise.")
-MARK_AS_ADVANCED(WITH_ATOMIC_LOCKS MY_ATOMIC_MODE_RWLOCK MY_ATOMIC_MODE_DUMMY)
+MARK_AS_ADVANCED(WITH_ATOMIC_OPS MY_ATOMIC_MODE_RWLOCK MY_ATOMIC_MODE_DUMMY)
 
 IF(WITH_VALGRIND)
   SET(HAVE_valgrind 1)