diff --git a/CMakeLists.txt b/CMakeLists.txt
index c7640b8b..d1f30ecb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -382,25 +382,24 @@ elseif(UNIX)
 	if(BUNDLED_JPEG)
 		if(CROSS_COMPILE32)
 			if(APPLE)
-				add_custom_command(OUTPUT ${CMAKE_CURRENT_LIST_DIR}/jpegturbo/.libs/libturbojpeg.a
-					COMMAND make clean || true
-					COMMAND ${CROSS_COMPILE32_FLAGS} ./configure --with-jpeg8 --build i686-apple-darwin && make
-					WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/jpegturbo
-				)
+				SET(JPEG_TURBO_BUILD ${CROSS_COMPILE32_FLAGS} ./configure --with-jpeg8 --build i686-apple-darwin && make)
 			else()
-				add_custom_command(OUTPUT ${CMAKE_CURRENT_LIST_DIR}/jpegturbo/.libs/libturbojpeg.a
-					COMMAND make clean || true
-					COMMAND ${CROSS_COMPILE32_FLAGS} ./configure --with-jpeg8 --build i686-pc-linux-gnu && make
-					WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/jpegturbo
-				)
+				SET(JPEG_TURBO_BUILD ${CROSS_COMPILE32_FLAGS} ./configure --with-jpeg8 --build i686-pc-linux-gnu && make)
 			endif()
 		else(CROSS_COMPILE32)
-			add_custom_command(OUTPUT ${CMAKE_CURRENT_LIST_DIR}/jpegturbo/.libs/libturbojpeg.a
-				COMMAND make clean || true
-				COMMAND ${CROSS_COMPILE32_FLAGS} ./configure --with-jpeg8 && make
-				WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/jpegturbo
-			)
+			if(APPLE)
+				SET(JPEG_TURBO_BUILD ${CROSS_COMPILE32_FLAGS} ./configure --with-jpeg8 --build x86_64-apple-darwin && make)
+			else()
+				SET(JPEG_TURBO_BUILD ${CROSS_COMPILE32_FLAGS} ./configure --with-jpeg8 && make)
+			endif()
 		endif()
+
+		add_custom_command(OUTPUT ${CMAKE_CURRENT_LIST_DIR}/jpegturbo/.libs/libturbojpeg.a
+			COMMAND make clean || true
+			COMMAND ${JPEG_TURBO_BUILD}
+			WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/jpegturbo
+		)
+
 		add_custom_target(bundled_jpeg
 			DEPENDS ${CMAKE_CURRENT_LIST_DIR}/jpegturbo/.libs/libturbojpeg.a
 		)