Move LIBXTR6 from cpp to autoconf.

* configure.in (LIBXTR6): New output variable.  Move unixware special
case here from src/s/unixware.h.

* src/Makefile.in (LIBXTR6): Set with configure, not cpp.
* src/s/unixware.h (NEED_LIBW): Remove definition.

* admin/CPP-DEFINES: Remove NEED_LIBW.

ChangeLog

 2010-04-27  Glenn Morris  <rgm@gnu.org>
 
+	* configure.in (LIBXTR6): New output variable.  Move unixware special
+	case here from src/s/unixware.h.
+
 	* configure.in (LUCID_LIBW, MOTIF_LIBW): No longer substitute
 	in Makefiles.
 	(TOOLKIT_LIBW): New output variable, replacing LUCID_LIBW/MOTIF_LIBW.

admin/CPP-DEFINES

@@ -250,7 +250,6 @@ MODE_LINE_BINARY_TEXT
 MUST_UNDEF__STDC__
 NEED_BSDTTY
 NEED_ERRNO
-NEED_LIBW
 NEED_UNISTD_H
 NLIST_STRUCT
 NOT_C_CODE

configure.in

@@ -1833,6 +1833,7 @@ fi
 
 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
 
+LIBXTR6=
 if test "${USE_X_TOOLKIT}" != "none"; then
   AC_MSG_CHECKING(X11 toolkit version)
   AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
@@ -1846,6 +1847,11 @@ fail;
     AC_MSG_RESULT(6 or newer)
     AC_DEFINE(HAVE_X11XTR6, 1,
 	      [Define to 1 if you have the X11R6 or newer version of Xt.])
+    LIBXTR6="-lSM -lICE"
+    case "$opsys" in
+      ## Use libw.a along with X11R6 Xt.
+      unixware) LIBXTR6="$LIBXTR6 -lw" ;;
+    esac
   else
     AC_MSG_RESULT(before 6)
   fi
@@ -1861,6 +1867,7 @@ dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
   AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
   test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
 fi
+AC_SUBST(LIBXTR6)
 
 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
 if test "${HAVE_X11}" = "yes"; then

src/ChangeLog

 2010-04-27  Glenn Morris  <rgm@gnu.org>
+	* Makefile.in (LIBXTR6): Set with configure, not cpp.
+	* s/unixware.h (NEED_LIBW): Remove definition.
+
 	* Makefile.in (LUCID_LIBW, MOTIF_LIBW): Remove, replacing by...
 	(TOOLKIT_LIBW): New, set by configure.
 	(@X_TOOLKIT_TYPE@): No longer define it.

src/Makefile.in

@@ -88,6 +88,8 @@ GTK_OBJ=@GTK_OBJ@
 
 LIBXSM=@LIBXSM@
 
+LIBXTR6=@LIBXTR6@
+
 XMENU_OBJ=@XMENU_OBJ@
 XOBJ=@XOBJ@
 
@@ -256,14 +258,6 @@ LIBXMENU=
 #ifdef USE_X_TOOLKIT
 LIBW=$(TOOLKIT_LIBW)
 
-#ifdef HAVE_X11XTR6
-#ifdef NEED_LIBW
-LIBXTR6 = -lSM -lICE -lw
-#else
-LIBXTR6 = -lSM -lICE
-#endif
-#endif
-
 #ifndef LIBXMU
 #define LIBXMU -lXmu
 #endif

src/s/unixware.h

@@ -56,9 +56,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
     pty_name[sizeof(pty_name) - 1] = 0;		\
   }
 
-/* Use libw.a along with X11R6 Xt.  */
-#define NEED_LIBW
-
 /* Data type of load average, as read out of kmem.  */
 
 #define LOAD_AVE_TYPE long