Add thirdparty libs

thirdparty/libjpeg/jpeg_test.cmake

@@ -0,0 +1,16 @@
+FILE(REMOVE ${OUTPUT})
+
+string(REPLACE " " ";" COMMAND "${COMMAND}")
+execute_process(COMMAND ${COMMAND}
+  OUTPUT_VARIABLE _stdout ERROR_VARIABLE _stderr RESULT_VARIABLE _res)
+if ( NOT(_res EQUAL 0) )
+  message(FATAL_ERROR "${COMMAND}:${_res}:${_stdout}:${_stderr}")
+endif ()
+
+LIST(GET COMMAND -1 _infile)
+
+FILE(READ ${OUTPUT} _outputstring)
+FILE(READ ${INPUT} _inputstring)
+if (NOT(_outputstring STREQUAL _inputstring))
+  message(FATAL_ERROR "files do not match: ${OUTPUT} ${INPUT}")
+endif ()