Fix build with jpeg-9, bug #520886

--- a/jpeg/jpeg.c	2010-06-17 15:40:24.000000000 +0200
+++ b/jpeg/jpeg.c	2018-02-07 23:26:38.050073397 +0100
@@ -53,6 +53,13 @@
  */
 
 #include "tkimg.h"
+#ifndef FALSE
+#define FALSE 0
+#endif
+#ifndef TRUE
+#define TRUE 1
+#endif
+#define HAVE_BOOLEAN
 #include "jpegtcl.h"
 
 static int SetupJPegLibrary(Tcl_Interp *interp);