--- brlcad-7.20.4/CMakeLists.txt	2012-02-11 22:21:21.407311510 -0500
+++ brlcad-7.20.4/CMakeLists.txt	2012-02-11 22:21:33.220804265 -0500
@@ -1394,7 +1394,7 @@
 	ENDFOREACH()
 	FOREACH(path_label ${PATH_LABELS})
 		SET(CURRENT_LABEL ${${path_label}_LABEL})
-		STRING(LENGTH ${CURRENT_LABEL} CURRENT_LENGTH)
+		STRING(LENGTH "${CURRENT_LABEL}" CURRENT_LENGTH)
 		WHILE(${PATH_LABEL_LENGTH} GREATER ${CURRENT_LENGTH})
 			SET(CURRENT_LABEL " ${CURRENT_LABEL}")
 			STRING(LENGTH "${CURRENT_LABEL}" CURRENT_LENGTH)
@@ -1436,7 +1436,7 @@
 	ENDFOREACH()
 	FOREACH(setting_label ${SETTINGLABELS})
 		SET(CURRENT_LABEL ${${setting_label}_LABEL})
-		STRING(LENGTH ${CURRENT_LABEL} CURRENT_LENGTH)
+		STRING(LENGTH "${CURRENT_LABEL}" CURRENT_LENGTH)
 		WHILE(${SETTING_LABEL_LENGTH} GREATER ${CURRENT_LENGTH})
 			SET(CURRENT_LABEL "${CURRENT_LABEL} ")
 			STRING(LENGTH ${CURRENT_LABEL} CURRENT_LENGTH)