* Makefile.am (DEFS): Added. automake adds -I options to DEFS,

and we don't want that.
(INCLUDES): Removed all -I options except for the root source
directory and the root build directory.

* *.*: Change includes so that they always use the "prefixes"
libguile/, qt/, guile-readline/, or libltdl/.
(Thanks to Tim Mooney.)

libguile/stackchk.c

@@ -45,11 +45,11 @@
 
 
 #include <stdio.h>
-#include "_scm.h"
-#include "ports.h"
-#include "root.h"
+#include "libguile/_scm.h"
+#include "libguile/ports.h"
+#include "libguile/root.h"
 
-#include "stackchk.h"
+#include "libguile/stackchk.h"
 
 
 /* {Stack Checking}
@@ -104,7 +104,7 @@ scm_stack_report ()
 void
 scm_init_stackchk ()
 {
-#include "stackchk.x"
+#include "libguile/stackchk.x"
 }
 
 /*