* 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/modules.c

@@ -44,12 +44,12 @@
 
 
 
-#include "_scm.h"
+#include "libguile/_scm.h"
 
-#include "eval.h"
-#include "procprop.h"
+#include "libguile/eval.h"
+#include "libguile/procprop.h"
 
-#include "modules.h"
+#include "libguile/modules.h"
 
 static SCM the_root_module;
 static SCM root_module_lookup_closure;
@@ -179,7 +179,7 @@ scm_system_module_env_p (SCM env)
 void
 scm_init_modules ()
 {
-#include "modules.x"
+#include "libguile/modules.x"
 }
 
 void