* lisp.h:

* w32heap.c:
* emacs.c:
* alloc.c: Replace all references of NO_UNION_TYPE with
USE_LISP_UNION_TYPE.

* m/xtensa.h (NO_UNION_TYPE):
* m/vax.h (NO_UNION_TYPE):
* m/template.h (NO_UNION_TYPE):
* m/sparc.h (NO_UNION_TYPE):
* m/mips.h (NO_UNION_TYPE):
* m/macppc.h (NO_UNION_TYPE):
* m/m68k.h (NO_UNION_TYPE):
* m/iris4d.h (NO_UNION_TYPE):
* m/intel386.h (NO_UNION_TYPE):
* m/ibms390x.h (NO_UNION_TYPE):
* m/ibms390.h (NO_UNION_TYPE):
* m/ibmrs6000.h (NO_UNION_TYPE):
* m/ia64.h (NO_UNION_TYPE):
* m/hp800.h (NO_UNION_TYPE):
* m/arm.h (NO_UNION_TYPE):
* m/amdx86-64.h (NO_UNION_TYPE):
* m/alpha.h (NO_UNION_TYPE): Remove definition, all platform were
defining it the same.

17 files changed, 12 insertions, 90 deletions

diff --git a/src/m/alpha.h b/src/m/alpha.h
index 84641bf306..f1bd6e4b60 100644
--- a/src/m/alpha.h
+++ b/src/m/alpha.h
@@ -51,15 +51,11 @@ NOTE-END
 /* __alpha defined automatically */
 
 
-/* Use type EMACS_INT rather than a union, to represent Lisp_Object */
-/* This is desirable for most machines.  */
-#define NO_UNION_TYPE
-
 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
    the 24-bit 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.  */
+   This flag only matters if you use USE_LISP_UNION_TYPE.  */
 
 #define EXPLICIT_SIGN_EXTEND
 
diff --git a/src/m/amdx86-64.h b/src/m/amdx86-64.h
index 20e09adc59..34800af8e9 100644
--- a/src/m/amdx86-64.h
+++ b/src/m/amdx86-64.h
@@ -49,11 +49,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
    orion, tahoe, APOLLO and many others */
 /* __x86_64 defined automatically.  */
 
-/* Use type int rather than a union, to represent Lisp_Object */
-/* This is desirable for most machines.  */
-
-#define NO_UNION_TYPE
-
 /* Define the type to use.  */
 #define EMACS_INT               long
 #define EMACS_UINT              unsigned long
@@ -63,7 +58,7 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
    the 24-bit 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.  */
+   This flag only matters if you use USE_LISP_UNION_TYPE.  */
 
 #define EXPLICIT_SIGN_EXTEND
 
diff --git a/src/m/arm.h b/src/m/arm.h
index d87d461d8f..3b79879574 100644
--- a/src/m/arm.h
+++ b/src/m/arm.h
@@ -39,8 +39,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #define SIGN_EXTEND_CHAR(c) (((int)(c) << 24) >> 24)
 
-#define NO_UNION_TYPE
-
 #define NO_REMAP
 
 /* arch-tag: 07856f0c-f0c8-4bd8-99af-0b7fa1e5ee42
diff --git a/src/m/hp800.h b/src/m/hp800.h
index 1476907703..717265d568 100644
--- a/src/m/hp800.h
+++ b/src/m/hp800.h
@@ -32,16 +32,11 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #define NO_ARG_ARRAY
 
-/* Use type int rather than a union, to represent Lisp_Object */
-/* This is desirable for most machines.  */
-
-#define NO_UNION_TYPE
-
 /* 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.  */
+   This flag only matters if you use USE_LISP_UNION_TYPE.  */
 
 #define EXPLICIT_SIGN_EXTEND
 
diff --git a/src/m/ia64.h b/src/m/ia64.h
index 2b11fa7854..960228afe4 100644
--- a/src/m/ia64.h
+++ b/src/m/ia64.h
@@ -39,11 +39,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 /* __ia64__ defined automatically */
 
 
-/* Use type EMACS_INT rather than a union, to represent Lisp_Object */
-/* This is desirable for most machines.  */
-
-#define NO_UNION_TYPE
-
 /* Define the type to use.  */
 #define EMACS_INT		long
 #define EMACS_UINT		unsigned long
@@ -53,7 +48,7 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
    the 24-bit 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.  */
+   This flag only matters if you use USE_LISP_UNION_TYPE.  */
 
 #define EXPLICIT_SIGN_EXTEND
 
diff --git a/src/m/ibmrs6000.h b/src/m/ibmrs6000.h
index 40c74688f9..35f464caa2 100644
--- a/src/m/ibmrs6000.h
+++ b/src/m/ibmrs6000.h
@@ -41,11 +41,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #define IBMR2AIX
 
-/* Use type int rather than a union, to represent Lisp_Object */
-/* This is desirable for most machines.  */
-
-#define NO_UNION_TYPE
-
 /* Define CANNOT_DUMP on machines where unexec does not work.
    Then the function dump-emacs will not be defined
    and temacs will do (load "loadup") automatically unless told otherwise.  */
diff --git a/src/m/ibms390.h b/src/m/ibms390.h
index 15081b0cfa..f605ed35e7 100644
--- a/src/m/ibms390.h
+++ b/src/m/ibms390.h
@@ -32,16 +32,11 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #define NO_ARG_ARRAY
 
-/* Use type int rather than a union, to represent Lisp_Object */
-/* This is desirable for most machines.  */
-
-#define NO_UNION_TYPE
-
 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
    the 24-bit 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.  */
+   This flag only matters if you use USE_LISP_UNION_TYPE.  */
 
 #define EXPLICIT_SIGN_EXTEND
 
diff --git a/src/m/ibms390x.h b/src/m/ibms390x.h
index a3afd23f59..31efa03f48 100644
--- a/src/m/ibms390x.h
+++ b/src/m/ibms390x.h
@@ -45,16 +45,6 @@ NOTE-END */
 
 #define NO_ARG_ARRAY
 
-/* Now define a symbol for the cpu type, if your compiler
-   does not define it automatically:
-   Ones defined so far include vax, m68000, ns16000, pyramid,
-   orion, tahoe, APOLLO and many others */
-
-/* Use type int rather than a union, to represent Lisp_Object */
-/* This is desirable for most machines.  */
-
-#define NO_UNION_TYPE
-
 /* Define the type to use.  */
 #define EMACS_INT long
 #define EMACS_UINT unsigned long
@@ -64,7 +54,7 @@ NOTE-END */
    the 24-bit 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.  */
+   This flag only matters if you use USE_LISP_UNION_TYPE.  */
 
 #undef EXPLICIT_SIGN_EXTEND
 
diff --git a/src/m/intel386.h b/src/m/intel386.h
index 540760cd57..9353283c0b 100644
--- a/src/m/intel386.h
+++ b/src/m/intel386.h
@@ -57,10 +57,6 @@ NOTE-END */
 
 /* #define NO_ARG_ARRAY */
 
-/* Use type int rather than a union, to represent Lisp_Object */
-
-#define NO_UNION_TYPE
-
 /* crt0.c, if it is used, should use the i386-bsd style of entry.
    with no extra dummy args.  On USG and XENIX,
    NO_REMAP says this isn't used. */
diff --git a/src/m/iris4d.h b/src/m/iris4d.h
index f6fd3f245d..e1d14e6910 100644
--- a/src/m/iris4d.h
+++ b/src/m/iris4d.h
@@ -41,16 +41,11 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #define IRIS_4D
 #endif
 
-/* Use type int rather than a union, to represent Lisp_Object */
-/* This is desirable for most machines.  */
-
-#define NO_UNION_TYPE
-
 /* 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.  */
+   This flag only matters if you use USE_LISP_UNION_TYPE.  */
 
 #define EXPLICIT_SIGN_EXTEND
 
diff --git a/src/m/m68k.h b/src/m/m68k.h
index a62c879518..50c8a8e757 100644
--- a/src/m/m68k.h
+++ b/src/m/m68k.h
@@ -39,16 +39,11 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #define m68k
 #endif
 
-/* Use type int rather than a union, to represent Lisp_Object */
-/* This is desirable for most machines.  */
-
-#define NO_UNION_TYPE
-
 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
    the 24-bit 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.  */
+   This flag only matters if you use USE_LISP_UNION_TYPE.  */
 
 #define EXPLICIT_SIGN_EXTEND
 
diff --git a/src/m/macppc.h b/src/m/macppc.h
index eb263526c2..c0e53c2e06 100644
--- a/src/m/macppc.h
+++ b/src/m/macppc.h
@@ -32,11 +32,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
    Ones defined so far include vax, m68000, ns16000, pyramid,
    orion, tahoe, APOLLO and many others */
 
-/* Use type EMACS_INT rather than a union, to represent Lisp_Object */
-/* This is desirable for most machines.  */
-
-#define NO_UNION_TYPE
-
 /* Data type of load average, as read out of kmem.  */
 
 #define LOAD_AVE_TYPE long
diff --git a/src/m/mips.h b/src/m/mips.h
index 7b9d658639..b446508b9a 100644
--- a/src/m/mips.h
+++ b/src/m/mips.h
@@ -52,16 +52,11 @@ NOTE-END  */
 #	define mips
 #endif
 
-/* Use type int rather than a union, to represent Lisp_Object */
-/* This is desirable for most machines.  */
-
-#define NO_UNION_TYPE
-
 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
    the 24-bit 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.  */
+   This flag only matters if you use USE_LISP_UNION_TYPE.  */
 
 #define EXPLICIT_SIGN_EXTEND
 
diff --git a/src/m/sparc.h b/src/m/sparc.h
index 233bf96d7c..e75094fa7d 100644
--- a/src/m/sparc.h
+++ b/src/m/sparc.h
@@ -38,11 +38,8 @@ NOTE-END  */
 
 /* __sparc__ is defined by the compiler by default.  */
 
-/* Use type int rather than a union, to represent Lisp_Object */
-
-#define NO_UNION_TYPE
-
-/* XINT must explicitly sign-extend */
+/* XINT must explicitly sign-extend
+   This flag only matters if you use USE_LISP_UNION_TYPE.  */
 
 #define EXPLICIT_SIGN_EXTEND
 
diff --git a/src/m/template.h b/src/m/template.h
index e447fba7b4..4b11f87c8a 100644
--- a/src/m/template.h
+++ b/src/m/template.h
@@ -36,16 +36,11 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
    does not define it automatically.
    Ones defined so far include m68k and many others */
 
-/* Use type int rather than a union, to represent Lisp_Object */
-/* This is desirable for most machines.  */
-
-#define NO_UNION_TYPE
-
 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
    the 24-bit 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.  */
+   This flag only matters if you use USE_LISP_UNION_TYPE.  */
 
 #define EXPLICIT_SIGN_EXTEND
 
diff --git a/src/m/vax.h b/src/m/vax.h
index 35050a11e1..7a08deb683 100644
--- a/src/m/vax.h
+++ b/src/m/vax.h
@@ -57,10 +57,6 @@ NOTE-END  */
 
 /* #define vax    -- appears to be done automatically  */
 
-/* Use type int rather than a union, to represent Lisp_Object */
-
-#define NO_UNION_TYPE
-
 /* crt0.c should use the vax-bsd style of entry, with no dummy args.  */
 
 #define CRT0_DUMMIES
diff --git a/src/m/xtensa.h b/src/m/xtensa.h
index 049874635d..d53686d940 100644
--- a/src/m/xtensa.h
+++ b/src/m/xtensa.h
@@ -3,7 +3,6 @@
 Add a license notice if this grows to > 10 lines of code.  */
 
 #define NO_ARG_ARRAY
-#define NO_UNION_TYPE
 
 #ifdef __LITTLE_ENDIAN
 #undef WORDS_BIG_ENDIAN