To prevent cmake from breaking up arguments, put quotes around them

Modules/CheckFunctionExists.cmake

@@ -18,7 +18,7 @@ MACRO(CHECK_FUNCTION_EXISTS FUNCTION VARIABLE)
             ${CMAKE_BINARY_DIR}
             ${CMAKE_ROOT}/Modules/CheckFunctionExists.c
             CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_FUNCTION_DEFINITIONS}
-                        ${CHECK_FUNCTION_EXISTS_ADD_LIBRARIES}
+                        "${CHECK_FUNCTION_EXISTS_ADD_LIBRARIES}"
             OUTPUT_VARIABLE OUTPUT)
     IF(${VARIABLE})
       SET(${VARIABLE} 1 CACHE INTERNAL "Have function ${FUNCTION}")

Modules/CheckLibraryExists.cmake

@@ -21,7 +21,7 @@ MACRO(CHECK_LIBRARY_EXISTS LIBRARY FUNCTION LOCATION VARIABLE)
                CMAKE_FLAGS 
                  -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_LIBRARY_EXISTS_DEFINITION}
                  -DLINK_DIRECTORIES:STRING=${LOCATION}
-                 -DLINK_LIBRARIES:STRING=${CHECK_LIBRARY_EXISTS_LIBRARIES}
+                 "-DLINK_LIBRARIES:STRING=${CHECK_LIBRARY_EXISTS_LIBRARIES}"
                OUTPUT_VARIABLE OUTPUT)
 
     IF(${VARIABLE})

Modules/CheckTypeSize.cmake

@@ -25,7 +25,7 @@ MACRO(CHECK_TYPE_SIZE TYPE VARIABLE)
             ${CMAKE_BINARY_DIR}
             ${CMAKE_ROOT}/Modules/CheckTypeSize.c
             CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_TYPE_SIZE_FLAGS}
-                        ${CHECK_TYPE_SIZE_ADD_LIBRARIES}
+                        "${CHECK_TYPE_SIZE_ADD_LIBRARIES}"
             OUTPUT_VARIABLE OUTPUT)
     IF(HAVE_${VARIABLE})
       MESSAGE(STATUS "Check size of ${TYPE} - done")

Modules/CheckVariableExists.cmake

@@ -17,7 +17,7 @@ MACRO(CHECK_VARIABLE_EXISTS VAR VARIABLE)
                ${CMAKE_BINARY_DIR}
                ${CMAKE_ROOT}/Modules/CheckVariableExists.c
                CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_VARIABLE_DEFINITIONS}
-                        ${CHECK_VARIABLE_EXISTS_ADD_LIBRARIES}
+                        "${CHECK_VARIABLE_EXISTS_ADD_LIBRARIES}"
                OUTPUT_VARIABLE OUTPUT)
     IF(${VARIABLE})
       SET(${VARIABLE} 1 CACHE INTERNAL "Have variable ${VAR}")