--- a/src/m/alliant-2800.h	Mon Aug 13 11:33:40 2007 +0200
+++ b/src/m/alliant-2800.h	Mon Aug 13 11:35:02 2007 +0200
@@ -24,11 +24,6 @@
    operating system this machine is likely to run.
    USUAL-OPSYS="bsd4-3"  */
 
-/* Define WORD_MACHINE if addresses and such have
- * to be corrected before they can be used as byte counts.  */
-
-#undef WORD_MACHINE
-
 /* Now define a symbol for the cpu type, if your compiler
    does not define it automatically:
    vax, m68000, ns16000, pyramid, orion, tahoe and APOLLO
@@ -39,15 +34,6 @@
 #define sun			/* Use X support for Sun keyboard stuff. */
 #define C_OPTIMIZE_SWITCH "-Og"	/* No concurrent code allowed here. */
 
-/* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
-   the bit field into an int.  In other words, if bit fields
-   are always unsigned.
-
-   If you use NO_UNION_TYPE, this flag does not matter.  */
-/* On Alliants, bitfields are unsigned. */
-
-#define EXPLICIT_SIGN_EXTEND
-
 /* Concentrix uses a different kernel symbol for load average. */
 
 #undef  LDAV_SYMBOL		/* Undo definition in s-bsd4-2.h */
@@ -72,15 +58,6 @@
 #define UNEXEC "unexfx2800.o"
 #define LIBS_MACHINE "-lalliant"
 
-/* Define VIRT_ADDR_VARIES if the virtual addresses of
-   pure and impure space as loaded can vary, and even their
-   relative order cannot be relied on.
-
-   Otherwise Emacs assumes that text space precedes data space,
-   numerically.  */
-
-#undef VIRT_ADDR_VARIES
-
 /* Define C_ALLOCA if this machine does not support a true alloca
    and the one written in C should be used instead.
    Define HAVE_ALLOCA to say that the system provides a properly