15 files changed, 28 insertions, 100 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index b1f1d027ef8..baa61d86c01 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,29 @@
+2008-07-20  Dan Nicolaescu  <dann@ics.uci.edu>
+
+        * s/usg5-4.h (LIBS_SYSTEM): Remove, system for which this was
+        added not supported anymore.
+
+        * s/usg5-4-2.h (LIBS_SYSTEM): 
+        * s/sol2.h (LIBS_SYSTEM): Do not undefine.
+
+        * s/netbsd.h (GETPGRP_NO_ARG, N_TRELOFF):
+        * s/lynxos.h (GETPGRP_NO_ARG):
+        * s/hpux10-20.h (NO_SIOCTL_H):
+        * s/gnu.h (GETPGRP_NO_ARG):
+        * s/gnu-linux.h (NO_SIOCTL_H):
+        * s/freebsd.h (GETPGRP_NO_ARG, N_TRELOFF):
+        * s/cygwin.h (GETPGRP_NO_ARG):
+        * s/irix6-5.h (LIBS_SYSTEM, GETPGRP_NO_ARG): Remove, unused.
+        (C_DEBUG_SWITCH): Remove duplicate definition.
+
+        * m/ibms390.h: Remove boilerplate comments.
+
+        * sysdep.c (closedir): Use SOLARIS2 instead of sun && USG5_4.
+
+        * process.c (HAVE_SERIAL): Consolidate ifdefs.
+        (wait_reading_process_output): Remove code for SunOS, platform not
+        supported anymore.  Use SOLARIS2 instead of sun.
+
 2008-07-19  Adrian Robert  <Adrian.B.Robert@gmail.com>
 
         * font.c (font_open_by_name): Under NS, default lface height to zero.
diff --git a/src/m/ibms390.h b/src/m/ibms390.h
index c45cc39f2d8..b1de5ef7f17 100644
--- a/src/m/ibms390.h
+++ b/src/m/ibms390.h
@@ -57,36 +57,5 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #define VIRT_ADDR_VARIES
 
-/* Define NO_REMAP if memory segmentation makes it not work well
-   to change the boundary between the text section and data section
-   when Emacs is dumped.  If you define this, the preloaded Lisp
-   code will not be sharable; but that's better than failing completely.  */
-
-/*#define NO_REMAP */
-
-/* Some really obscure 4.2-based systems (like Sequent DYNIX)
- * do not support asynchronous I/O (using SIGIO) on sockets,
- * even though it works fine on tty's.  If you have one of
- * these systems, define the following, and then use it in
- * config.h (or elsewhere) to decide when (not) to use SIGIO.
- *
- * You'd think this would go in an operating-system description file,
- * but since it only occurs on some, but not all, BSD systems, the
- * reasonable place to select for it is in the machine description
- * file.
- */
-
-/*#define NO_SOCK_SIGIO*/
-
-
-/* After adding support for a new system, modify the large case
-   statement in the `configure' script to recognize reasonable
-   configuration names, and add a description of the system to
-   `etc/MACHINES'.
-
-   If you've just fixed a problem in an existing configuration file,
-   you should also check `etc/MACHINES' to make sure its descriptions
-   of known problems in that configuration should be updated.  */
-
 /* arch-tag: d8a0ffa4-a8f0-4736-90d3-7fd7b21b8314
    (do not change this comment) */
diff --git a/src/process.c b/src/process.c
index 0878051f733..e028ab93503 100644
--- a/src/process.c
+++ b/src/process.c
@@ -2785,9 +2785,7 @@ usage: (serial-process-configure &rest ARGS)  */)
   UNGCPRO;
   return Qnil;
 }
-#endif /* HAVE_SERIAL  */
 
-#ifdef HAVE_SERIAL
 /* Used by make-serial-process to recover from errors.  */
 Lisp_Object make_serial_process_unwind (Lisp_Object proc)
 {
@@ -2796,9 +2794,7 @@ Lisp_Object make_serial_process_unwind (Lisp_Object proc)
   remove_process (proc);
   return Qnil;
 }
-#endif /* HAVE_SERIAL  */
 
-#ifdef HAVE_SERIAL
 DEFUN ("make-serial-process", Fmake_serial_process, Smake_serial_process,
        0, MANY, 0,
        doc: /* Create and return a serial port process.
@@ -4912,19 +4908,6 @@ wait_reading_process_output (time_limit, microsecs, read_kbd, do_display,
           IF_NON_BLOCKING_CONNECT (check_connect = 0);
         }
 
-#if defined(sun) && !defined(USG5_4)
-      if (nfds > 0 && keyboard_bit_set (&Available)
-          && interrupt_input)
-        /* System sometimes fails to deliver SIGIO.
-
-           David J. Mackenzie says that Emacs doesn't compile under
-           Solaris if this code is enabled, thus the USG5_4 in the CPP
-           conditional.  "I haven't noticed any ill effects so far.
-           If you find a Solaris expert somewhere, they might know
-           better." */
-        kill (getpid (), SIGIO);
-#endif
-
 #if 0 /* When polling is used, interrupt_input is 0,
          so get_input_pending should read the input.
          So this should not be needed.  */
@@ -7704,7 +7687,7 @@ wait_reading_process_output (time_limit, microsecs, read_kbd, do_display,
           else
             error ("select error: %s", emacs_strerror (xerrno));
         }
-#ifdef sun
+#ifdef SOLARIS2
       else if (nfds > 0 && (waitchannels & 1)  && interrupt_input)
         /* System sometimes fails to deliver SIGIO.  */
         kill (getpid (), SIGIO);
diff --git a/src/s/cygwin.h b/src/s/cygwin.h
index b1172e622b3..fd13112730c 100644
--- a/src/s/cygwin.h
+++ b/src/s/cygwin.h
@@ -110,7 +110,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #define CYGWIN 1
 
 #define PENDING_OUTPUT_COUNT(FILE) ((FILE)->_p - (FILE)->_bf._base)
-#define GETPGRP_NO_ARG 1
 #define SYSV_SYSTEM_DIR 1
 #define UNEXEC unexcw.o
 #define POSIX_SIGNALS 1
diff --git a/src/s/freebsd.h b/src/s/freebsd.h
index 79ecaeba0d3..ca183b57ff1 100644
--- a/src/s/freebsd.h
+++ b/src/s/freebsd.h
@@ -65,7 +65,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* freebsd has POSIX-style pgrp behavior. */
 #undef BSD_PGRPS
-#define GETPGRP_NO_ARG
 
 #ifdef __ELF__
 
@@ -90,9 +89,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #define RUN_TIME_REMAP
 #define LIB_GCC -lgcc
 
-#ifndef N_TRELOFF
-#define N_TRELOFF(x) N_RELOFF(x)
-#endif
 #else /* NO_SHARED_LIBS */
 #ifdef __FreeBSD__  /* shared libs are available, but the user prefers
                      not to use them.  */
diff --git a/src/s/gnu-linux.h b/src/s/gnu-linux.h
index b21a84b5e34..7501cd602f3 100644
--- a/src/s/gnu-linux.h
+++ b/src/s/gnu-linux.h
@@ -190,10 +190,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #define INTERRUPT_INPUT
 #endif
 
-/* This is needed for sysdep.c */
-
-#define NO_SIOCTL_H           /* don't have sioctl.h */
-
 #define SYSV_SYSTEM_DIR       /* use dirent.h */
 
 #define POSIX                 /* affects getpagesize.h and systty.h */
diff --git a/src/s/gnu.h b/src/s/gnu.h
index 8192ea1cbf2..931d7db2ffd 100644
--- a/src/s/gnu.h
+++ b/src/s/gnu.h
@@ -53,7 +53,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* GNU has POSIX-style pgrp behavior.  */
 #undef BSD_PGRPS
-#define GETPGRP_NO_ARG
 
 /* Use mmap directly for allocating larger buffers.  */
 #ifdef DOUG_LEA_MALLOC
diff --git a/src/s/hpux10-20.h b/src/s/hpux10-20.h
index 45242c6862b..201f4f4ca32 100644
--- a/src/s/hpux10-20.h
+++ b/src/s/hpux10-20.h
@@ -113,10 +113,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
    conflicting -a.  */
 #define LD_SWITCH_SYSTEM_TEMACS
 
-/* Some hpux 8 machines seem to have TIOCGWINSZ,
-   and none have sioctl.h, so might as well define this.  */
-#define NO_SIOCTL_H
-
 #ifndef HAVE_LIBXMU
 /* HP-UX doesn't supply Xmu.  */
 #define LIBXMU
diff --git a/src/s/irix6-5.h b/src/s/irix6-5.h
index 1ccaf432dac..0a7e2c70c6f 100644
--- a/src/s/irix6-5.h
+++ b/src/s/irix6-5.h
@@ -28,10 +28,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #define SETPGRP_RELEASES_CTTY
 
-#ifdef LIBS_SYSTEM
-#undef LIBS_SYSTEM
-#endif
-
 #ifdef LIB_STANDARD
 #undef LIB_STANDARD
 #endif
@@ -49,13 +45,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 /* Make process_send_signal work by "typing" a signal character on the pty.  */
 #define SIGNALS_VIA_CHARACTERS
 
-/* SGI has all the fancy wait stuff, but we can't include sys/wait.h
-   because it defines BIG_ENDIAN and LITTLE_ENDIAN (ugh!.)  Instead
-   we'll just define WNOHANG right here.
-   (An implicit decl is good enough for wait3.)  */
-
-/* #define WNOHANG              0x1 */
-
 /* No need to use sprintf to get the tty name--we get that from _getpty.  */
 #ifdef PTY_TTY_NAME_SPRINTF
 #undef PTY_TTY_NAME_SPRINTF
@@ -95,9 +84,6 @@ char *_getpty();
    throughout. */
 #define POSIX_SIGNALS
 
-/* Info from simon@lia.di.epfl.ch (Simon Leinen) suggests this is needed.  */
-#define GETPGRP_NO_ARG
-
 /* Ulimit(UL_GMEMLIM) is busted...  */
 #define ULIMIT_BREAK_VALUE 0x14000000
 
@@ -111,14 +97,6 @@ char *_getpty();
 
 #define MAIL_USE_FLOCK
 
-/* -g used not to work on Irix unless you used gas, and since gcc
-   warns if you use it, turn off the warning.  */
-/* -g does now work, at least on recent Irix 6 versions with gcc 2.95;
-    I'm not sure about Irix 5 -- fx  */
-#ifdef __GNUC__
-#define C_DEBUG_SWITCH
-#endif
-
 #define NARROWPROTO 1
 
 #define USE_MMAP_FOR_BUFFERS 1
@@ -134,7 +112,6 @@ char *_getpty();
 /* The only supported 32-bit configuration of GCC under IRIX6.x produces
    n32 MIPS ABI binaries and also supports -g. */
 #ifdef __GNUC__
-#undef C_DEBUG_SWITCH
 #define C_DEBUG_SWITCH -g
 #else
 /* Optimize, inaccurate debugging, increase limit on size of what's
diff --git a/src/s/lynxos.h b/src/s/lynxos.h
index 745c65f4ca6..d28a4ee688e 100644
--- a/src/s/lynxos.h
+++ b/src/s/lynxos.h
@@ -34,7 +34,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #define LDAV_SYMBOL "load_average"
 
 /* misc defines */
-#define GETPGRP_NO_ARG
 #define LNOFLSH 0
 
 /* COFF related */
diff --git a/src/s/netbsd.h b/src/s/netbsd.h
index 5a667e30d2d..2e0af41a2f6 100644
--- a/src/s/netbsd.h
+++ b/src/s/netbsd.h
@@ -58,8 +58,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 /* Netbsd has POSIX-style pgrp behavior.  */
 #undef BSD_PGRPS
 
-#define GETPGRP_NO_ARG
-
 #if !defined (NO_SHARED_LIBS) && ! defined (__ELF__)
 /* These definitions should work for either dynamic or static linking,
    whichever is the default for `cc -nostdlib'.  */
@@ -68,10 +66,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #define UNEXEC unexsunos4.o
 #define RUN_TIME_REMAP
 
-/* Try to make this work for both 0.9 and >0.9.  */
-#ifndef N_TRELOFF
-#define N_TRELOFF(x) N_RELOFF(x)
-#endif
 #endif /* not NO_SHARED_LIBS and not ELF */
 
 #if !defined (NO_SHARED_LIBS) && defined (__ELF__)
diff --git a/src/s/sol2.h b/src/s/sol2.h
index 1938fb6d865..bd6e1c9bdba 100644
--- a/src/s/sol2.h
+++ b/src/s/sol2.h
@@ -40,7 +40,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #define LD_SWITCH_SYSTEM `./prefix-args -Xlinker LD_SWITCH_X_SITE_AUX`
 #endif /* GCC */
 
-#undef LIBS_SYSTEM
 #define LIBS_SYSTEM -lsocket -lnsl -lkstat
 
 /* Prefer kstat over kvm in getloadavg.c, kstat doesn't require root.
diff --git a/src/s/usg5-4-2.h b/src/s/usg5-4-2.h
index c6ee7ac5d32..46b350d6db9 100644
--- a/src/s/usg5-4-2.h
+++ b/src/s/usg5-4-2.h
@@ -34,7 +34,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #undef HAVE_SYSV_SIGPAUSE
 
 /* Motif needs -lgen.  */
-#undef LIBS_SYSTEM
 #define LIBS_SYSTEM -lsocket -lnsl -lelf -lgen
 
 /* This is the same definition as in usg5-4.h, but with sigblock/sigunblock
diff --git a/src/s/usg5-4.h b/src/s/usg5-4.h
index 4c2a59cc27d..9639d3be24c 100644
--- a/src/s/usg5-4.h
+++ b/src/s/usg5-4.h
@@ -222,9 +222,5 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
    So give it a try.  */
 #define HAVE_SOCKETS
 
-/* Markus Weiand <weiand@khof.com> says this is needed for Motif on
-   SINIX.  */
-#define LIBS_SYSTEM -lgen
-
 /* arch-tag: 1a0ed909-5faa-434b-b7c3-9d86c63d53a6
    (do not change this comment) */
diff --git a/src/sysdep.c b/src/sysdep.c
index 1721172e0d6..b19ed384754 100644
--- a/src/sysdep.c
+++ b/src/sysdep.c
@@ -3295,7 +3295,7 @@ closedir (dirp)
   /* Some systems (like Solaris) allocate the buffer and the DIR all
      in one block.  Why in the world are we freeing this ourselves
      anyway?  */
-#if ! (defined (sun) && defined (USG5_4))
+#if ! defined (SOLARIS2)
   xfree ((char *) dirp->dd_buf); /* directory block defined in <dirent.h> */
 #endif
   xfree ((char *) dirp);