Move UNIX98_PTYS from src/s to configure

* configure.ac (UNIX98_PTYS): Move here from src/s.

* src/s/gnu-linux.h (UNIX98_PTYS): Let configure set it.

4 files changed, 6 insertions, 5 deletions

diff --git a/ChangeLog b/ChangeLog
index d111e9f6319..a7aad6a0734 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -8,7 +8,7 @@
         (BROKEN_SIGPOLL, BROKEN_SIGPTY, FIRST_PTY_LETTER)
         (G_SLICE_ALWAYS_MALLOC, PREFER_VSUSP, PTY_ITERATION, PTY_OPEN)
         (PTY_NAME_SPRINTF, PTY_TTY_NAME_SPRINTF, RUN_TIME_REMAP)
-        (SETPGRP_RELEASES_CTTY, TAB3, TABDLY, RUN_TIME_REMAP)
+        (SETPGRP_RELEASES_CTTY, TAB3, TABDLY, RUN_TIME_REMAP, UNIX98_PTYS)
         (XOS_NEEDS_TIME_H): Move here from src/s.
 
 2012-07-11  Glenn Morris  <rgm@gnu.org>
diff --git a/configure.ac b/configure.ac
index 191d2ae7e05..6ac53bbd64d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3340,6 +3340,7 @@ case $opsys in
   gnu-linux | gnu-kfreebsd )
     dnl if HAVE_GRANTPT
     if test "x$ac_cv_func_grantpt" = xyes; then
+      AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
       AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)] )
       dnl Note that grantpt and unlockpt may fork.  We must block SIGCHLD
       dnl to prevent sigchld_handler from intercepting the child's death.
diff --git a/src/ChangeLog b/src/ChangeLog
index 2d661f2be09..14428f427d5 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,7 @@
+2012-07-12  Glenn Morris  <rgm@gnu.org>
+
+        * s/gnu-linux.h (UNIX98_PTYS): Let configure set it.
+
 2012-07-12  Paul Eggert  <eggert@cs.ucla.edu>
 
         Fix typos that broke OS X build.
diff --git a/src/s/gnu-linux.h b/src/s/gnu-linux.h
index 626113b119c..90725815dea 100644
--- a/src/s/gnu-linux.h
+++ b/src/s/gnu-linux.h
@@ -25,10 +25,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #define USG
 #define GNU_LINUX
 
-#if defined HAVE_GRANTPT
-#define UNIX98_PTYS
-#endif  /* HAVE_GRANTPT */
-
 /* Here, on a separate page, add any special hacks needed
    to make Emacs work on this system.  For example,
    you might define certain system call names that don't