Squashed 'third_party/libjpeg/' content from commit bc8f8be

Change-Id: I3d4d07867e1d31632bb8461b9b273939ed2dbf16
git-subtree-dir: third_party/libjpeg
git-subtree-split: bc8f8be222287fec977ec3f47a5cb065cceb2ee9
diff --git a/jpeg_test.cmake b/jpeg_test.cmake
new file mode 100644
index 0000000..8536e63
--- /dev/null
+++ b/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 ()