diff --git a/cmake_export_symbol.cmake b/cmake_export_symbol.cmake
index cbc65f2a6a..088300191c 100644
--- a/cmake_export_symbol.cmake
+++ b/cmake_export_symbol.cmake
@@ -1,49 +1,55 @@
-macro(export_symbol TARGET FILENAME)
+macro(export_symbol TARGET SYMBOLS_PATH)
 
 	set(FLAG "")
+	get_filename_component(FILENAME ${SYMBOLS_PATH} NAME)
 
 	if(WIN32)
 		string(REPLACE ".sym" ".def" DEF_FILENAME ${FILENAME})
-		file(WRITE ${DEF_FILENAME} "EXPORTS\n")
-		file(READ ${FILENAME} SYMBOLS)
-		file(APPEND ${DEF_FILENAME} "${SYMBOLS}")
-		target_sources(${TARGET} PRIVATE ${DEF_FILENAME})
+		file(TO_CMAKE_PATH "${CMAKE_CURRENT_BINARY_DIR}/${DEF_FILENAME}" DEF_PATH)
+		file(WRITE ${DEF_PATH} "EXPORTS\n")
+		file(READ ${SYMBOLS_PATH} SYMBOLS)
+		file(APPEND ${DEF_PATH} "${SYMBOLS}")
+		target_sources(${TARGET} PRIVATE ${DEF_PATH})
 
 	elseif(APPLE)
-		file(READ ${FILENAME} SYMBOLS)
+		file(READ ${SYMBOLS_PATH} SYMBOLS)
 		string(REGEX REPLACE "\n$" "" SYMBOLS ${SYMBOLS})
 		string(REPLACE "\n" "\n_" SYMBOLS ${SYMBOLS})
 		string(REGEX REPLACE "(.)$" "\\1\\n" SYMBOLS ${SYMBOLS})
 		string(REPLACE ".sym" ".exp" EXP_FILENAME ${FILENAME})
-		file(WRITE ${EXP_FILENAME} "_${SYMBOLS}")
-		set(FLAG "-exported_symbols_list ${EXP_FILENAME}")
+		file(TO_CMAKE_PATH "${CMAKE_CURRENT_BINARY_DIR}/${EXP_FILENAME}" EXP_PATH)
+		file(WRITE ${EXP_PATH} "_${SYMBOLS}")
+		set(FLAG "-exported_symbols_list ${EXP_PATH}")
 		set_target_properties(${TARGET} PROPERTIES LINK_FLAGS ${FLAG})
 
 	elseif(CMAKE_SYSTEM_NAME MATCHES "HP-UX")
-		file(READ ${FILENAME} SYMBOLS)
+		file(READ ${SYMBOLS_PATH} SYMBOLS)
 		string(REGEX REPLACE "\n$" "" SYMBOLS ${SYMBOLS})
 		string(REPLACE "\n" "\n+e " SYMBOLS ${SYMBOLS})
 		string(REPLACE ".sym" ".opt" OPT_FILENAME ${FILENAME})
-		file(WRITE ${OPT_FILENAME} "+e ${SYMBOLS}")
-		set(FLAG "-Wl,-c,${OPT_FILENAME}")
+		file(TO_CMAKE_PATH "${CMAKE_CURRENT_BINARY_DIR}/${OPT_FILENAME}" OPT_PATH)
+		file(WRITE ${OPT_PATH} "+e ${SYMBOLS}")
+		set(FLAG "-Wl,-c,${OPT_PATH}")
 		set_target_properties(${TARGET} PROPERTIES LINK_FLAGS ${FLAG})
 
 	elseif(CMAKE_SYSTEM_NAME MATCHES "SunOS")
-		file(READ ${FILENAME} SYMBOLS)
+		file(READ ${SYMBOLS_PATH} SYMBOLS)
 		string(REPLACE "\n" ";\n" SYMBOLS ${SYMBOLS})
 		string(REPLACE ".sym" ".ver" VER_FILENAME ${FILENAME})
-		file(WRITE ${VER_FILENAME}
+		file(TO_CMAKE_PATH "${CMAKE_CURRENT_BINARY_DIR}/${VER_FILENAME}" VER_PATH)
+		file(WRITE ${VER_PATH}
 			"{\nglobal:\n${SYMBOLS}\nlocal:\n*;\n};\n")
-		set(FLAG "-Wl,-M${VER_FILENAME}")
+		set(FLAG "-Wl,-M${VER_PATH}")
 		set_target_properties(${TARGET} PROPERTIES LINK_FLAGS ${FLAG})
 
 	elseif(CMAKE_COMPILER_IS_GNUCC OR CMAKE_C_COMPILER_ID MATCHES "Clang")
-		file(READ ${FILENAME} SYMBOLS)
+		file(READ ${SYMBOLS_PATH} SYMBOLS)
 		string(REPLACE "\n" ";\n" SYMBOLS ${SYMBOLS})
 		string(REPLACE ".sym" ".ver" VER_FILENAME ${FILENAME})
-		file(WRITE ${VER_FILENAME}
+		file(TO_CMAKE_PATH "${CMAKE_CURRENT_BINARY_DIR}/${VER_FILENAME}" VER_PATH)
+		file(WRITE ${VER_PATH}
 			"{\nglobal:\n${SYMBOLS}\nlocal:\n*;\n};\n")
-		set(FLAG "-Wl,--version-script,\"${VER_FILENAME}\"")
+		set(FLAG "-Wl,--version-script,\"${VER_PATH}\"")
 		set_target_properties(${TARGET} PROPERTIES LINK_FLAGS ${FLAG})
 	endif()
 
diff --git a/crypto/CMakeLists.txt b/crypto/CMakeLists.txt
index 06151100b3..afa57b3abf 100644
--- a/crypto/CMakeLists.txt
+++ b/crypto/CMakeLists.txt
@@ -798,11 +798,11 @@ file(READ ${CMAKE_CURRENT_SOURCE_DIR}/crypto.sym SYMS)
 foreach(SYM IN LISTS CRYPTO_UNEXPORT)
 	string(REPLACE "${SYM}\n" "" SYMS ${SYMS})
 endforeach()
-file(WRITE ${CMAKE_CURRENT_SOURCE_DIR}/crypto_p.sym ${SYMS})
+file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/crypto_p.sym ${SYMS})
 if(EXTRA_EXPORT)
 	list(SORT EXTRA_EXPORT)
 	foreach(SYM IN LISTS EXTRA_EXPORT)
-		file(APPEND ${CMAKE_CURRENT_SOURCE_DIR}/crypto_p.sym "${SYM}\n")
+		file(APPEND ${CMAKE_CURRENT_BINARY_DIR}/crypto_p.sym "${SYM}\n")
 	endforeach()
 endif()
 
@@ -810,7 +810,7 @@ add_library(crypto-objects OBJECT ${CRYPTO_SRC})
 if (BUILD_SHARED)
 	add_library(crypto STATIC $<TARGET_OBJECTS:crypto-objects>)
 	add_library(crypto-shared SHARED $<TARGET_OBJECTS:crypto-objects>)
-	export_symbol(crypto-shared ${CMAKE_CURRENT_SOURCE_DIR}/crypto_p.sym)
+	export_symbol(crypto-shared ${CMAKE_CURRENT_BINARY_DIR}/crypto_p.sym)
 	if (WIN32)
 		target_link_libraries(crypto-shared Ws2_32.lib)
 		set(CRYPTO_POSTFIX -${CRYPTO_MAJOR_VERSION})