Move NSIG_MINIMUM from src/s to configure

* configure.ac (NSIG_MINIMUM): Move here from src/s.

* src/s/usg5-4-common.h (NSIG_MINIMUM): Let configure set it.

ChangeLog

@@ -1,6 +1,7 @@
 2012-07-13  Glenn Morris  <rgm@gnu.org>
 
-	* configure.ac (ULIMIT_BREAK_VALUE): Move here from src/s.
+	* configure.ac (NSIG_MINIMUM, ULIMIT_BREAK_VALUE):
+	Move here from src/s.
 
 2012-07-12  Glenn Morris  <rgm@gnu.org>
 

configure.ac

@@ -3171,7 +3171,15 @@ esac
 case $opsys in
   darwin | gnu | hpux* | *bsd )
     AC_DEFINE(NO_TERMIO, 1, [Define if termio.h should not be included.])
-  ;;
+    ;;
+
+  irix6-5 | sol2* | unixware )
+    dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
+    dnl instead, there's a system variable _sys_nsig.  Unfortunately, we
+    dnl need the constant to dimension an array.  So wire in the appropriate
+    dnl value here.
+    AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
+    ;;
 esac
 
 

src/ChangeLog

@@ -1,5 +1,7 @@
 2012-07-13  Glenn Morris  <rgm@gnu.org>
 
+	* s/usg5-4-common.h (NSIG_MINIMUM): Let configure set it.
+
 	* s/gnu-linux.h, s/irix6-5.h: Let configure set ULIMIT_BREAK_VALUE.
 
 	* process.c (init_process_emacs): Replace MIN_PTY_KERNEL_VERSION.

src/s/usg5-4-common.h

@@ -46,11 +46,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #include <sys/termios.h>
 #endif
 
-/* Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
-   instead, there's a system variable _sys_nsig.  Unfortunately, we need the
-   constant to dimension an array.  So wire in the appropriate value here.  */
-#define NSIG_MINIMUM 32
-
 /* It is possible to receive SIGCHLD when there are no children
    waiting, because a previous waitsys(2) cleaned up the carcass of child
    without clearing the SIGCHLD pending info.  So, use a non-blocking

src/syssignal.h

@@ -98,6 +98,7 @@ _Noreturn void croak (char *);
 #endif
 
 
+/* FIXME?  Emacs only defines NSIG_MINIMUM on some platforms?  */
 #if NSIG < NSIG_MINIMUM
 # ifdef NSIG
 #  undef NSIG