diff --git a/cmake/prebuild.cmake b/cmake/prebuild.cmake
index f4b930452..b783ef90d 100644
--- a/cmake/prebuild.cmake
+++ b/cmake/prebuild.cmake
@@ -192,7 +192,7 @@ else(NOT CMAKE_CROSSCOMPILING)
   if (NOT "${CMAKE_SYSTEM_NAME}" STREQUAL "WindowsStore")
     try_compile(GETARCH_RESULT ${GETARCH_DIR}
       SOURCES ${GETARCH_SRC}
-    COMPILE_DEFINITIONS ${EXFLAGS} ${GETARCH_FLAGS} -I${GETARCH_DIR} -I${PROJECT_SOURCE_DIR} -I${PROJECT_BINARY_DIR}
+    COMPILE_DEFINITIONS ${EXFLAGS} ${GETARCH_FLAGS} -I${GETARCH_DIR} -I"${PROJECT_SOURCE_DIR}" -I"${PROJECT_BINARY_DIR}"
       OUTPUT_VARIABLE GETARCH_LOG
       COPY_FILE ${PROJECT_BINARY_DIR}/${GETARCH_BIN}
     )
@@ -204,8 +204,8 @@ else(NOT CMAKE_CROSSCOMPILING)
   message(STATUS "Running getarch")
 
   # use the cmake binary w/ the -E param to run a shell command in a cross-platform way
-execute_process(COMMAND ${PROJECT_BINARY_DIR}/${GETARCH_BIN} 0 OUTPUT_VARIABLE GETARCH_MAKE_OUT)
-execute_process(COMMAND ${PROJECT_BINARY_DIR}/${GETARCH_BIN} 1 OUTPUT_VARIABLE GETARCH_CONF_OUT)
+execute_process(COMMAND "${PROJECT_BINARY_DIR}/${GETARCH_BIN}" 0 OUTPUT_VARIABLE GETARCH_MAKE_OUT)
+execute_process(COMMAND "${PROJECT_BINARY_DIR}/${GETARCH_BIN}" 1 OUTPUT_VARIABLE GETARCH_CONF_OUT)
 
   message(STATUS "GETARCH results:\n${GETARCH_MAKE_OUT}")
 
@@ -220,7 +220,7 @@ execute_process(COMMAND ${PROJECT_BINARY_DIR}/${GETARCH_BIN} 1 OUTPUT_VARIABLE G
   if (NOT "${CMAKE_SYSTEM_NAME}" STREQUAL "WindowsStore")
     try_compile(GETARCH2_RESULT ${GETARCH2_DIR}
       SOURCES ${PROJECT_SOURCE_DIR}/getarch_2nd.c
-    COMPILE_DEFINITIONS ${EXFLAGS} ${GETARCH_FLAGS} ${GETARCH2_FLAGS} -I${GETARCH2_DIR} -I${PROJECT_SOURCE_DIR} -I${PROJECT_BINARY_DIR}
+    COMPILE_DEFINITIONS ${EXFLAGS} ${GETARCH_FLAGS} ${GETARCH2_FLAGS} -I${GETARCH2_DIR} -I"${PROJECT_SOURCE_DIR}" -I"${PROJECT_BINARY_DIR}"
       OUTPUT_VARIABLE GETARCH2_LOG
       COPY_FILE ${PROJECT_BINARY_DIR}/${GETARCH2_BIN}
     )
@@ -231,8 +231,8 @@ execute_process(COMMAND ${PROJECT_BINARY_DIR}/${GETARCH_BIN} 1 OUTPUT_VARIABLE G
   endif ()
 
   # use the cmake binary w/ the -E param to run a shell command in a cross-platform way
-execute_process(COMMAND ${PROJECT_BINARY_DIR}/${GETARCH2_BIN} 0 OUTPUT_VARIABLE GETARCH2_MAKE_OUT)
-execute_process(COMMAND ${PROJECT_BINARY_DIR}/${GETARCH2_BIN} 1 OUTPUT_VARIABLE GETARCH2_CONF_OUT)
+execute_process(COMMAND "${PROJECT_BINARY_DIR}/${GETARCH2_BIN}" 0 OUTPUT_VARIABLE GETARCH2_MAKE_OUT)
+execute_process(COMMAND "${PROJECT_BINARY_DIR}/${GETARCH2_BIN}" 1 OUTPUT_VARIABLE GETARCH2_CONF_OUT)
 
   # append config data from getarch_2nd to the TARGET file and read in CMake vars
   file(APPEND ${TARGET_CONF_TEMP} ${GETARCH2_CONF_OUT})