[CMake] Fix bug when OCTOMAP is not found

CMakeLists.txt

@@ -78,19 +78,19 @@ add_optional_dependency("octomap >= 1.6")
 if (OCTOMAP_INCLUDE_DIRS AND OCTOMAP_LIBRARY_DIRS)
 	include_directories(${OCTOMAP_INCLUDE_DIRS})
 	link_directories(${OCTOMAP_LIBRARY_DIRS})
-	set(FCL_HAVE_OCTOMAP 1)
-        string(REPLACE "." ";" VERSION_LIST ${OCTOMAP_VERSION})
-        list(GET VERSION_LIST 0 OCTOMAP_MAJOR_VERSION)
-        list(GET VERSION_LIST 1 OCTOMAP_MINOR_VERSION)
-        list(GET VERSION_LIST 2 OCTOMAP_PATCH_VERSION)
-        add_definitions (-DOCTOMAP_MAJOR_VERSION=${OCTOMAP_MAJOR_VERSION}
-          -DOCTOMAP_MINOR_VERSION=${OCTOMAP_MINOR_VERSION}
-          -DOCTOMAP_PATCH_VERSION=${OCTOMAP_PATCH_VERSION})
+  add_definitions (-DFCL_HAVE_OCTOMAP)
+  string(REPLACE "." ";" VERSION_LIST ${OCTOMAP_VERSION})
+  list(GET VERSION_LIST 0 OCTOMAP_MAJOR_VERSION)
+  list(GET VERSION_LIST 1 OCTOMAP_MINOR_VERSION)
+  list(GET VERSION_LIST 2 OCTOMAP_PATCH_VERSION)
+  add_definitions (-DOCTOMAP_MAJOR_VERSION=${OCTOMAP_MAJOR_VERSION}
+                   -DOCTOMAP_MINOR_VERSION=${OCTOMAP_MINOR_VERSION}
+                   -DOCTOMAP_PATCH_VERSION=${OCTOMAP_PATCH_VERSION})
 	message(STATUS "FCL uses Octomap")
 else()
 	message(STATUS "FCL does not use Octomap")
 endif()
-add_definitions (-DFCL_HAVE_OCTOMAP=${FCL_HAVE_OCTOMAP})
+
 ADD_REQUIRED_DEPENDENCY("assimp >= 2.0")
 if(ASSIMP_FOUND)
   if (NOT ${ASSIMP_VERSION} VERSION_LESS "2.0.1150")