Merge from mainline.

26 files changed, 378 insertions, 681 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 37a4cdb1b1..2eaefe41fa 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,97 @@
+2010-03-20  Dan Nicolaescu  <[email protected]>
+
+	Remove support for old GNU/Linux using libc version 5.
+	* m/alpha.h (LINUX_SBRK_BUG): Remove definition.
+	* emacs.c (main): Remove code depending on LINUX_SBRK_BUG.
+
+	Consolidate redundant definitions in s/bsd-common.h.
+	* s/bsd-common.h (BSD4_2, TABDLY, TAB3, HAVE_TERMIOS, NO_TERMIO)
+	(LIBS_DEBUG, SYSV_SYSTEM_DIR, UNEXEC, NARROWPROTO, BSD_PGRPS)
+	(LDAV_SYMBOL, KERNEL_FILE): Define (or undefine) here instead of
+	doing it in all files that include this one.
+	* s/gnu.h (BSD4_2, TABDLY, TAB3, HAVE_TERMIOS, NO_TERMIO)
+	(LIBS_DEBUG, SYSV_SYSTEM_DIR, UNEXEC, NARROWPROTO, BSD_PGRPS)
+	(LDAV_SYMBOL, KERNEL_FILE): Remove.
+	* s/freebsd.h (BSD4_2, TABDLY, TAB3, HAVE_TERMIOS, NO_TERMIO)
+	(LIBS_DEBUG, SYSV_SYSTEM_DIR, UNEXEC, NARROWPROTO, BSD_PGRPS)
+	(LDAV_SYMBOL, KERNEL_FILE): Remove.
+	* s/netbsd.h (BSD4_2, TABDLY, TAB3, HAVE_TERMIOS, NO_TERMIO)
+	(LIBS_DEBUG, SYSV_SYSTEM_DIR, UNEXEC, NARROWPROTO, BSD_PGRPS)
+	(LDAV_SYMBOL, KERNEL_FILE): Remove.
+
+	Consolidate redundant definitions.
+	* s/usg5-4.h (sigsetmask, PTY_TTY_NAME_SPRINTF): Do not define,
+	it's undefined in all files that include this one.
+	(POSIX_SIGNALS): Define here instead of doing it in all files that
+	include this one.
+	* s/irix6-5.h (sigsetmask, PTY_TTY_NAME_SPRINTF): Do not undef.
+	(POSIX_SIGNALS): Do not define.
+	* s/sol2-6.h (sigsetmask, PTY_TTY_NAME_SPRINTF): Do not undef.
+	(POSIX_SIGNALS): Do not define.
+	* s/unixware.h (sigsetmask, PTY_TTY_NAME_SPRINTF): Do not undef.
+	(POSIX_SIGNALS): Do not define.
+
+	Remove support for old UNIX System V systems.
+	* s/unixware.h: Add the contents of s/usg-5-4-2.h.
+	* s/usg-5-4-2.h: Remove.
+
+	Remove support for Solaris on PPC and for old versions.
+	* s/sol2-6.h: Add the contents of s/sol-2.3.h, s/sol-2.4.h, s/sol-2.5.h.
+	(LD_SWITCH_SYSTEM, USE_MMAP_FOR_BUFFERS): Remove #defines/#undef
+	that cancel each other.
+	* s/sol2-3.h:
+	* s/sol2-4.h:
+	* s/sol2-5.h: Remove.
+	* m/ibmrs6000.h: Remove code for USG5_4, this file is only used on AIX.
+	(NO_REMAP): Remove, unused.
+	(UNEXEC): Move definition ...
+	* s/aix4-2.h (UNEXEC): ... here.
+
+	* s/openbsd.h: Remove support for non-ELF and for systems that do
+	not support shared libraries.
+	* s/netbsd.h:
+	* s/freebsd.h: Likewise.
+
+2010-03-20  Dan Nicolaescu  <[email protected]>
+
+	Remove non-working support for lynxos 3.0.
+	* s/lynxos.h: Remove file.
+
+	* unexec.c (unexec, adjust_lnnoptrs): Do not depend on
+	COFF_BSD_SYMBOLS, nothing defines it anymore.
+
+2010-03-20  Dan Nicolaescu  <[email protected]>
+
+	Remove obsolete uses of HAVE_SHM.
+	* emacs.c (standard_args):
+	(Fdump_emacs):
+	(syms_of_emacs): Remove code depending on HAVE_SHM.
+
+	* alloc.c: Remove HAVE_SHM dependent definition.
+
+	* Makefile.in (RUN_TEMACS): Do not depend on HAVE_SHM.
+
+2010-03-18  Glenn Morris  <[email protected]>
+
+	* emacs.c (USAGE4): Hard-code bug address.
+	(REPORT_EMACS_BUG_ADDRESS, REPORT_EMACS_BUG_PRETEST_ADDRESS): Remove.
+	(bug_reporting_address): Remove.
+	(main): Don't call bug_reporting_address.
+
+	* Makefile.in (XFT_LIBS, LIBXPM, LIBJPEG, LIBPNG, LIBTIFF, LIBGIF)
+	(LIBGPM, LIBRESOLV): Set using autoconf rather than cpp.
+
+2010-03-15  Chong Yidong  <[email protected]>
+
+	* xfns.c (Fx_create_frame):
+	* frame.c (Vdefault_frame_scroll_bars): Put non-GTK X scroll-bars
+	on left.
+
+2010-03-13  Andreas Politz  <[email protected]>  (tiny change)
+
+	* editfns.c (Fformat): Account for string precision when computing
+	field width (Bug#5710).
+
 2010-03-12  Chong Yidong  <[email protected]>
 
 	* xfns.c (Fx_create_frame): Set default to Qright.
diff --git a/src/Makefile.in b/src/Makefile.in
index d64c045960..51c0683539 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -369,76 +369,16 @@ LIBXT=$(LIBW)
 #endif
 #endif /* not USE_X_TOOLKIT */
 
-#if HAVE_XFT
-XFT_LIBS=@XFT_LIBS@
-#endif /* HAVE_XFT */
-
-#if HAVE_XPM
-#ifndef LIBXPM
-#define LIBXPM -lXpm
-#endif /* not defined LIBXPM */
-#else /* not HAVE_XPM */
-#define LIBXPM
-#endif /* not HAVE_XPM */
-
-#if HAVE_JPEG
-#ifndef LIBJPEG
-#define LIBJPEG -ljpeg
-#endif /* not defined LIBJPEG */
-#else /* not HAVE_JPEG */
-#define LIBJPEG
-#endif /* not HAVE_JPEG */
-
-#if HAVE_PNG
-#ifndef LIBPNG
-#define LIBPNG -lpng -lz -lm
-#endif /* not defined LIBPNG */
-#else /* not HAVE_PNG */
-#define LIBPNG
-#endif /* not HAVE_PNG */
-
-#if HAVE_TIFF
-#ifndef LIBTIFF
-#define LIBTIFF -ltiff
-#endif /* not defined LIBTIFF */
-#else /* not HAVE_TIFF */
-#define LIBTIFF
-#endif /* not HAVE_TIFF */
-
-#if HAVE_GIF
-#ifndef LIBGIF
-#define LIBGIF -lgif
-#endif /* not defined LIBGIF */
-#else /* not HAVE_GIF */
-#define LIBGIF
-#endif /* not HAVE_GIF */
-
 #ifdef HAVE_X11
 /* LD_SWITCH_X_DEFAULT comes after everything else that specifies
    options for where to find X libraries, but before those libraries.  */
 X11_LDFLAGS = LD_SWITCH_X_SITE LD_SWITCH_X_DEFAULT
-LIBX= $(LIBXMENU) $(X11_LDFLAGS) $(LIBXT) LIBTIFF LIBJPEG LIBPNG LIBGIF LIBXPM LIB_X11_LIB LIBX11_SYSTEM $(XFT_LIBS)
+LIBX= $(LIBXMENU) $(X11_LDFLAGS) $(LIBXT) @LIBTIFF@ @LIBJPEG@ @LIBPNG@ @LIBGIF@ @LIBXPM@ LIB_X11_LIB LIBX11_SYSTEM @XFT_LIBS@
 #else /* not HAVE_X11 */
 LIBX= $(LIBXMENU) LD_SWITCH_X_SITE
 #endif /* not HAVE_X11 */
 #endif /* not HAVE_X_WINDOWS */
 
-#if HAVE_GPM
-#ifndef LIBGPM
-#define LIBGPM -lgpm
-#endif /* not defined LIBGPM */
-#else /* not HAVE_GPM */
-#define LIBGPM
-#endif /* not HAVE_GPM */
-
-#if HAVE_LIBRESOLV
-#ifndef LIBRESOLV
-#define LIBRESOLV -lresolv
-#endif /* not defined LIBRESOLV */
-#else /* not HAVE_LIBRESOLV */
-#define LIBRESOLV
-#endif /* not HAVE_LIBRESOLV */
-
 LIBSOUND= @LIBSOUND@
 CFLAGS_SOUND= @CFLAGS_SOUND@
 
@@ -527,7 +467,7 @@ GETLOADAVG_LIBS = @GETLOADAVG_LIBS@
 #ifdef HAVE_X_WINDOWS
 MSDOS_OBJ = dosfns.o msdos.o xmenu.o
 #else
-MSDOS_OBJ = dosfns.o msdos.o w16select.o xmenu.o
+MSDOS_OBJ = dosfns.o msdos.o w16select.o xmenu.o termcap.o
 #endif
 #endif
 
@@ -595,10 +535,8 @@ termcapobj = terminfo.o
 #else /* ! defined (TERMINFO) */
 #ifndef LIBS_TERMCAP
 #define LIBS_TERMCAP
-termcapobj = termcap.o tparam.o
-#else /* LIBS_TERMCAP */
-termcapobj = tparam.o
 #endif /* LIBS_TERMCAP */
+termcapobj = tparam.o
 #endif /* ! defined (TERMINFO) */
 
 
@@ -910,16 +848,12 @@ SOME_MACHINE_LISP = ../lisp/mouse.elc \
    with GCC, we might need gnulib again after them.  */
 
 LIBES = $(LOADLIBES) $(LIBS) $(LIBX) $(LIBSOUND) $(RSVG_LIBS) $(DBUS_LIBS) \
-   LIBGPM LIBRESOLV LIBS_SYSTEM LIBS_MACHINE LIBS_TERMCAP \
+   @LIBGPM@ @LIBRESOLV@ LIBS_SYSTEM LIBS_MACHINE LIBS_TERMCAP \
    LIBS_DEBUG $(GETLOADAVG_LIBS) ${GCONF_LIBS} \
    @FREETYPE_LIBS@ @FONTCONFIG_LIBS@ @LIBOTF_LIBS@ @M17N_FLT_LIBS@ \
    $(GNULIB_VAR) LIB_MATH LIB_STANDARD $(GNULIB_VAR)
 
-#ifdef HAVE_SHM
-RUN_TEMACS = `/bin/pwd`/temacs -nl
-#else
 RUN_TEMACS = `/bin/pwd`/temacs
-#endif
 
 all: emacs${EXEEXT} $(OTHER_FILES)
 
diff --git a/src/alloc.c b/src/alloc.c
index 9a935cc895..98d60067f9 100644
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -257,8 +257,6 @@ Lisp_Object Vpurify_flag;
 
 Lisp_Object Vmemory_full;
 
-#ifndef HAVE_SHM
-
 /* Initialize it to a nonzero value to force it into data space
    (rather than bss space).  That way unexec will remap it into text
    space (pure), on some systems.  We have not implemented the
@@ -268,13 +266,6 @@ Lisp_Object Vmemory_full;
 EMACS_INT pure[(PURESIZE + sizeof (EMACS_INT) - 1) / sizeof (EMACS_INT)] = {1,};
 #define PUREBEG (char *) pure
 
-#else /* HAVE_SHM */
-
-#define pure PURE_SEG_BITS   /* Use shared memory segment */
-#define PUREBEG (char *)PURE_SEG_BITS
-
-#endif /* HAVE_SHM */
-
 /* Pointer to the pure area, and its size.  */
 
 static char *purebeg;
diff --git a/src/config.in b/src/config.in
index 3a3ae09a08..ef2c25c85d 100644
--- a/src/config.in
+++ b/src/config.in
@@ -264,8 +264,7 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 /* Define to 1 if you have the `get_current_dir_name' function. */
 #undef HAVE_GET_CURRENT_DIR_NAME
 
-/* Define to 1 if you have a gif library (default -lgif; otherwise specify
-   with LIBGIF). */
+/* Define to 1 if you have a gif (or ungif) library. */
 #undef HAVE_GIF
 
 /* Define to 1 if you have the gpm library (-lgpm). */
@@ -319,10 +318,10 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 /* Define to 1 if you have the <kerberos/krb.h> header file. */
 #undef HAVE_KERBEROS_KRB_H
 
-/* Define to 1 if `krb5_error' is a member of `e_text'. */
+/* Define to 1 if `e_text' is member of `krb5_error'. */
 #undef HAVE_KRB5_ERROR_E_TEXT
 
-/* Define to 1 if `krb5_error' is a member of `text'. */
+/* Define to 1 if `text' is member of `krb5_error'. */
 #undef HAVE_KRB5_ERROR_TEXT
 
 /* Define to 1 if you have the <krb5.h> header file. */
@@ -616,25 +615,25 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 /* Define to 1 if you have the `strsignal' function. */
 #undef HAVE_STRSIGNAL
 
-/* Define to 1 if `struct ifreq' is a member of `ifr_addr'. */
+/* Define to 1 if `ifr_addr' is member of `struct ifreq'. */
 #undef HAVE_STRUCT_IFREQ_IFR_ADDR
 
-/* Define to 1 if `struct ifreq' is a member of `ifr_broadaddr'. */
+/* Define to 1 if `ifr_broadaddr' is member of `struct ifreq'. */
 #undef HAVE_STRUCT_IFREQ_IFR_BROADADDR
 
-/* Define to 1 if `struct ifreq' is a member of `ifr_flags'. */
+/* Define to 1 if `ifr_flags' is member of `struct ifreq'. */
 #undef HAVE_STRUCT_IFREQ_IFR_FLAGS
 
-/* Define to 1 if `struct ifreq' is a member of `ifr_hwaddr'. */
+/* Define to 1 if `ifr_hwaddr' is member of `struct ifreq'. */
 #undef HAVE_STRUCT_IFREQ_IFR_HWADDR
 
-/* Define to 1 if `struct ifreq' is a member of `ifr_netmask'. */
+/* Define to 1 if `ifr_netmask' is member of `struct ifreq'. */
 #undef HAVE_STRUCT_IFREQ_IFR_NETMASK
 
-/* Define to 1 if `struct nlist' is a member of `n_un.n_name'. */
+/* Define to 1 if `n_un.n_name' is member of `struct nlist'. */
 #undef HAVE_STRUCT_NLIST_N_UN_N_NAME
 
-/* Define to 1 if `struct tm' is a member of `tm_zone'. */
+/* Define to 1 if `tm_zone' is member of `struct tm'. */
 #undef HAVE_STRUCT_TM_TM_ZONE
 
 /* Define to 1 if `struct utimbuf' is declared by <utime.h>. */
@@ -818,12 +817,18 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
    Solaris, for example). */
 #undef LD_SWITCH_X_SITE_AUX
 
-/* Compiler option to link with the gif library (if not -lgif). */
-#undef LIBGIF
-
 /* Define to 1 if localtime caches TZ. */
 #undef LOCALTIME_CACHE
 
+/* String giving fallback POP mail host. */
+#undef MAILHOST
+
+/* Define to unlink, rather than empty, mail spool after reading. */
+#undef MAIL_UNLINK_SPOOL
+
+/* Define to support MMDF mailboxes in movemail. */
+#undef MAIL_USE_MMDF
+
 /* Define to support POP mail retrieval. */
 #undef MAIL_USE_POP
 
@@ -855,9 +860,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 /* Define to the one symbol short name of this package. */
 #undef PACKAGE_TARNAME
 
-/* Define to the home page for this package. */
-#undef PACKAGE_URL
-
 /* Define to the version of this package. */
 #undef PACKAGE_VERSION
 
@@ -917,28 +919,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 /* Define to 1 if using the Motif X toolkit. */
 #undef USE_MOTIF
 
-/* Enable extensions on AIX 3, Interix.  */
-#ifndef _ALL_SOURCE
-# undef _ALL_SOURCE
-#endif
-/* Enable GNU extensions on systems that have them.  */
-#ifndef _GNU_SOURCE
-# undef _GNU_SOURCE
-#endif
-/* Enable threading extensions on Solaris.  */
-#ifndef _POSIX_PTHREAD_SEMANTICS
-# undef _POSIX_PTHREAD_SEMANTICS
-#endif
-/* Enable extensions on HP NonStop.  */
-#ifndef _TANDEM_SOURCE
-# undef _TANDEM_SOURCE
-#endif
-/* Enable general extensions on Solaris.  */
-#ifndef __EXTENSIONS__
-# undef __EXTENSIONS__
-#endif
-
-
 /* Define to 1 if we should use toolkit scroll bars. */
 #undef USE_TOOLKIT_SCROLL_BARS
 
@@ -974,6 +954,28 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 /* Define to 1 if you need to in order for `stat' and other things to work. */
 #undef _POSIX_SOURCE
 
+/* Enable extensions on AIX 3, Interix.  */
+#ifndef _ALL_SOURCE
+# undef _ALL_SOURCE
+#endif
+/* Enable GNU extensions on systems that have them.  */
+#ifndef _GNU_SOURCE
+# undef _GNU_SOURCE
+#endif
+/* Enable threading extensions on Solaris.  */
+#ifndef _POSIX_PTHREAD_SEMANTICS
+# undef _POSIX_PTHREAD_SEMANTICS
+#endif
+/* Enable extensions on HP NonStop.  */
+#ifndef _TANDEM_SOURCE
+# undef _TANDEM_SOURCE
+#endif
+/* Enable general extensions on Solaris.  */
+#ifndef __EXTENSIONS__
+# undef __EXTENSIONS__
+#endif
+
+
 /* Define to rpl_ if the getopt replacement functions and variables should be
    used. */
 #undef __GETOPT_PREFIX
diff --git a/src/editfns.c b/src/editfns.c
index 093f141bff..9f30ea0641 100644
--- a/src/editfns.c
+++ b/src/editfns.c
@@ -3782,7 +3782,11 @@ usage: (format STRING &rest OBJECTS)  */)
 	       to be as large as is calculated here.  Easy check for
 	       the case PRECISION = 0. */
 	    thissize = precision[n] ? CONVERTED_BYTE_SIZE (multibyte, args[n]) : 0;
+	    /* The precision also constrains how much of the argument
+	       string will finally appear (Bug#5710). */
 	    actual_width = lisp_string_width (args[n], -1, NULL, NULL);
+	    if (precision[n] != -1)
+	      actual_width = min(actual_width,precision[n]);
 	  }
 	/* Would get MPV otherwise, since Lisp_Int's `point' to low memory.  */
 	else if (INTEGERP (args[n]) && *format != 's')
diff --git a/src/emacs.c b/src/emacs.c
index 71ffa998bf..60aa14e2b7 100644
--- a/src/emacs.c
+++ b/src/emacs.c
@@ -345,7 +345,7 @@ abbreviation for a --option.\n\
 Various environment variables and window system resources also affect\n\
 Emacs' operation.  See the main documentation.\n\
 \n\
-Report bugs to %s.  First, please see the Bugs\n\
+Report bugs to [email protected].  First, please see the Bugs\n\
 section of the Emacs manual or the file BUGS.\n"
 
 
@@ -746,41 +746,6 @@ void (*__malloc_initialize_hook) () = malloc_initialize_hook;
 #endif /* DOUG_LEA_MALLOC */
 
 
-#define REPORT_EMACS_BUG_ADDRESS "[email protected]"
-#define REPORT_EMACS_BUG_PRETEST_ADDRESS "[email protected]"
-
-/* This function is used to determine an address to which bug report should
-   be sent.  */
-
-char *
-bug_reporting_address ()
-{
-  int count = 0;
-  Lisp_Object temp;
-  char *string;
-
-  temp = Fsymbol_value (intern ("emacs-version"));
-
-  /* When `emacs-version' is invalid, use normal address.  */
-  if (!STRINGP(temp))
-    return REPORT_EMACS_BUG_ADDRESS;
-
-  string = SDATA (temp);
-
-  /* Count dots in `emacs-version'.  */
-  while (*string)
-    {
-      if (*string == '.')
-	count++;
-      string++;
-    }
-
-  /* When `emacs-version' has at least three dots, it is development or
-     pretest version of Emacs.  */
-  return count >= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS : REPORT_EMACS_BUG_ADDRESS;
-}
-
-
 /* ARGSUSED */
 int
 main (int argc, char **argv)
@@ -825,11 +790,6 @@ main (int argc, char **argv)
       heap_bss_diff = (char *)my_heap_start - max (my_endbss, my_endbss_static);
     }
 
-#ifdef LINUX_SBRK_BUG
-  /* This is only used GNU/LINUX running on alpha when using libc5 */
-  __sbrk (1);
-#endif
-
 #ifdef RUN_TIME_REMAP
   if (initialized)
     run_time_remap (argv[0]);
@@ -1082,7 +1042,7 @@ main (int argc, char **argv)
     {
       printf (USAGE1, argv[0], USAGE2);
       printf (USAGE3);
-      printf (USAGE4, bug_reporting_address ());
+      printf (USAGE4);
       exit (0);
     }
 
@@ -1851,9 +1811,6 @@ struct standard_args
 const struct standard_args standard_args[] =
 {
   { "-version", "--version", 150, 0 },
-#ifdef HAVE_SHM
-  { "-nl", "--no-shared-memory", 140, 0 },
-#endif
   { "-t", "--terminal", 120, 1 },
   { "-nw", "--no-window-system", 110, 0 },
   { "-nw", "--no-windows", 110, 0 },
@@ -2245,39 +2202,6 @@ shut_down_emacs (sig, no_x, stuff)
 
 #ifndef CANNOT_DUMP
 
-#ifdef HAVE_SHM
-
-DEFUN ("dump-emacs-data", Fdump_emacs_data, Sdump_emacs_data, 1, 1, 0,
-       doc: /* Dump current state of Emacs into data file FILENAME.
-This function exists on systems that use HAVE_SHM.  */)
-     (filename)
-     Lisp_Object filename;
-{
-  extern char my_edata[];
-  Lisp_Object tem;
-
-  check_pure_size ();
-  CHECK_STRING (filename);
-  filename = Fexpand_file_name (filename, Qnil);
-
-  tem = Vpurify_flag;
-  Vpurify_flag = Qnil;
-
-  fflush (stdout);
-  /* Tell malloc where start of impure now is.  */
-  /* Also arrange for warnings when nearly out of space.  */
-#ifndef SYSTEM_MALLOC
-  memory_warnings (my_edata, malloc_warning);
-#endif
-  map_out_data (SDATA (filename));
-
-  Vpurify_flag = tem;
-
-  return Qnil;
-}
-
-#else /* not HAVE_SHM */
-
 DEFUN ("dump-emacs", Fdump_emacs, Sdump_emacs, 2, 2, 0,
        doc: /* Dump current state of Emacs into executable file FILENAME.
 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
@@ -2374,8 +2298,6 @@ You must run Emacs in batch mode in order to dump it.  */)
   return unbind_to (count, Qnil);
 }
 
-#endif /* not HAVE_SHM */
-
 #endif /* not CANNOT_DUMP */
 
 #if HAVE_SETLOCALE
@@ -2552,12 +2474,8 @@ syms_of_emacs ()
   staticpro (&Qfile_name_handler_alist);
 
 #ifndef CANNOT_DUMP
-#ifdef HAVE_SHM
-  defsubr (&Sdump_emacs_data);
-#else
   defsubr (&Sdump_emacs);
 #endif
-#endif
 
   defsubr (&Skill_emacs);
 
diff --git a/src/frame.c b/src/frame.c
index c779f1c5b6..40930af594 100644
--- a/src/frame.c
+++ b/src/frame.c
@@ -4584,8 +4584,14 @@ Setting this variable does not affect existing frames, only new ones.  */);
   DEFVAR_LISP ("default-frame-scroll-bars", &Vdefault_frame_scroll_bars,
 	       doc: /* Default position of scroll bars on this window-system.  */);
 #ifdef HAVE_WINDOW_SYSTEM
+#if defined(HAVE_NTGUI) || defined(NS_IMPL_COCOA) || (defined(USE_GTK) && defined(USE_TOOLKIT_SCROLL_BARS))
+  /* MS-Windows, Mac OS X, and GTK have scroll bars on the right by
+     default.  */
   Vdefault_frame_scroll_bars = Qright;
 #else
+  Vdefault_frame_scroll_bars = Qleft;
+#endif
+#else
   Vdefault_frame_scroll_bars = Qnil;
 #endif
 
diff --git a/src/m/alpha.h b/src/m/alpha.h
index 5abf8bba72..065a0dd7d7 100644
--- a/src/m/alpha.h
+++ b/src/m/alpha.h
@@ -116,11 +116,6 @@ NOTE-END
 
 #endif /* __ELF__ */
 
-#if defined (GNU_LINUX) && __GNU_LIBRARY__ - 0 < 6
-/* This controls a conditional in main.  */
-#define LINUX_SBRK_BUG
-#endif
-
 /* On the Alpha it's best to avoid including TERMIO since struct
    termio and struct termios are mutually incompatible.  */
 #define NO_TERMIO
diff --git a/src/m/ibmrs6000.h b/src/m/ibmrs6000.h
index 757db149ed..4304ea90cd 100644
--- a/src/m/ibmrs6000.h
+++ b/src/m/ibmrs6000.h
@@ -32,19 +32,10 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #define IBMR2AIX
 
-#ifndef UNEXEC
-#define UNEXEC unexaix.o
-#endif
-
-/* Define addresses, macros, change some setup for dump */
-
-#define NO_REMAP
-
 /* The data segment in this machine always starts at address 0x20000000.
    An address of data cannot be stored correctly in a Lisp object;
    we always lose the high bits.  We must tell XPNTR to add them back.  */
 
-#ifndef USG5_4
 #define TEXT_START 0x10000000
 #define DATA_START 0x20000000
 #define WORDS_BIG_ENDIAN
@@ -75,12 +66,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #define LIBS_MACHINE -lrts -lIM -liconv
 #endif
 
-#else /* USG5_4 */
-#undef WORDS_BIG_ENDIAN
-#define DATA_SEG_BITS 0
-#define LIBS_MACHINE
-#endif /* USG5_4 */
-
 #undef ADDR_CORRECT
 #define ADDR_CORRECT(x) ((int)(x))
 
diff --git a/src/s/aix4-2.h b/src/s/aix4-2.h
index 29a68dbf6e..a1abf13466 100644
--- a/src/s/aix4-2.h
+++ b/src/s/aix4-2.h
@@ -168,5 +168,7 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 */
 #define BROKEN_GET_CURRENT_DIR_NAME 1
 
+#define UNEXEC unexaix.o
+
 /* arch-tag: 38fe75ea-6aef-42bd-8449-bc34d921a562
    (do not change this comment) */
diff --git a/src/s/bsd-common.h b/src/s/bsd-common.h
index 8094f50d31..2ef0883b2a 100644
--- a/src/s/bsd-common.h
+++ b/src/s/bsd-common.h
@@ -33,6 +33,36 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #define BSD_SYSTEM 43
 #endif /* BSD_SYSTEM */
 
+/* For mem-limits.h.  */
+#define BSD4_2
+
+#define TABDLY OXTABS
+#define TAB3 OXTABS
+
+/* These aren't needed, since we have getloadavg.  */
+#undef KERNEL_FILE
+#undef LDAV_SYMBOL
+
+#define HAVE_TERMIOS
+#define NO_TERMIO
+
+#define LIBS_DEBUG
+
+#define SYSV_SYSTEM_DIR
+
+/* POSIX-style pgrp behavior.  */
+#undef BSD_PGRPS
+
+#define UNEXEC unexelf.o
+
+/* If the system's imake configuration file defines `NeedWidePrototypes'
+   as `NO', we must define NARROWPROTO manually.  Such a define is
+   generated in the Makefile generated by `xmkmf'.  If we don't
+   define NARROWPROTO, we will see the wrong function prototypes
+   for X functions taking float or double parameters.  */
+
+#define NARROWPROTO 1
+
 /* SYSTEM_TYPE should indicate the kind of system you are using.
  It sets the Lisp variable system-type.  */
 
diff --git a/src/s/freebsd.h b/src/s/freebsd.h
index e13941d2dc..a84627d326 100644
--- a/src/s/freebsd.h
+++ b/src/s/freebsd.h
@@ -23,39 +23,14 @@ GNU General Public License for more details.
 You should have received a copy of the GNU General Public License
 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
-/* Get the correct __FreeBSD_version, even if this is before that was
-   defined. */
-#ifndef __FreeBSD_version
-#ifndef __FreeBSD__
-#define __FreeBSD_version 199401
-#elif __FreeBSD__ == 1
-#define __FreeBSD_version 199405
-#else
-#include <osreldate.h>
-#endif
-#endif /* !defined __FreeBSD_version */
-
-/* '__FreeBSD__' is defined by the preprocessor on FreeBSD-1.1 and up.
-   Earlier versions do not have shared libraries, so inhibit them.
-   You can inhibit them on newer systems if you wish
-   by defining NO_SHARED_LIBS.  */
-#ifndef __FreeBSD__
-#define NO_SHARED_LIBS
-#endif
-
 /* Get most of the stuff from bsd-common */
 #include "bsd-common.h"
 
 /* For mem-limits.h. */
 #define BSD4_2
 
-/* These aren't needed, since we have getloadavg.  */
-#undef KERNEL_FILE
-#undef LDAV_SYMBOL
-
 #define PENDING_OUTPUT_COUNT(FILE) ((FILE)->_p - (FILE)->_bf._base)
 
-#define LIBS_DEBUG
 #define LIBS_SYSTEM -lutil
 #if __FreeBSD_version < 400000
 #define LIBS_TERMCAP -ltermcap
@@ -64,44 +39,19 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #define LIBS_TERMCAP -lncurses
 #endif
 
-#define SYSV_SYSTEM_DIR
-
-/* freebsd has POSIX-style pgrp behavior. */
-#undef BSD_PGRPS
-
-#ifdef __ELF__
-
 /* Let `ld' find image libs and similar things in /usr/local/lib.  The
    system compiler, GCC, has apparently been modified to not look
    there, contrary to what a stock GCC would do.  */
 
 #define LD_SWITCH_SYSTEM  -L/usr/local/lib
 #define START_FILES pre-crt0.o /usr/lib/crt1.o /usr/lib/crti.o /usr/lib/crtbegin.o
-#define UNEXEC unexelf.o
 #define LIB_STANDARD -lgcc -lc -lgcc /usr/lib/crtend.o /usr/lib/crtn.o
 #undef LIB_GCC
 #define LIB_GCC
 
-#else /* not __ELF__ */
-
-#ifdef NO_SHARED_LIBS
-#ifdef __FreeBSD__  /* shared libs are available, but the user prefers
-                     not to use them.  */
-#define LD_SWITCH_SYSTEM -Bstatic -L/usr/local/lib
-#endif /* __FreeBSD__ */
-#endif /* NO_SHARED_LIBS */
-
-#endif /* not __ELF__ */
-
 #define HAVE_GETLOADAVG 1
-#define HAVE_TERMIOS
-#define NO_TERMIO
 #define DECLARE_GETPWUID_WITH_UID_T
 
-/* freebsd uses OXTABS instead of the expected TAB3. */
-#define TABDLY OXTABS
-#define TAB3 OXTABS
-
 /* this silences a few compilation warnings */
 #undef BSD_SYSTEM
 #if __FreeBSD__ == 1
@@ -117,14 +67,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
    ioctl TIOCSCTTY.  */
 #define DONT_REOPEN_PTY
 
-/* If the system's imake configuration file defines `NeedWidePrototypes'
-   as `NO', we must define NARROWPROTO manually.  Such a define is
-   generated in the Makefile generated by `xmkmf'.  If we don't
-   define NARROWPROTO, we will see the wrong function prototypes
-   for X functions taking float or double parameters.  */
-
-#define NARROWPROTO 1
-
 /* The following is needed to make `configure' find Xpm, Xaw3d and
    image include and library files if using /usr/bin/gcc.  That
    compiler seems to be modified to not find headers in
diff --git a/src/s/gnu.h b/src/s/gnu.h
index b43cd65c40..bf68cabe05 100644
--- a/src/s/gnu.h
+++ b/src/s/gnu.h
@@ -21,27 +21,13 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 /* Get most of the stuff from bsd-common */
 #include "bsd-common.h"
 
-/* For mem-limits.h.  */
-#define BSD4_2
-
 #undef SYSTEM_TYPE
 #define SYSTEM_TYPE "gnu"
 
 #undef NLIST_STRUCT
-#undef KERNEL_FILE
-#undef LDAV_SYMBOL
 
 #define SIGNALS_VIA_CHARACTERS
 
-#define HAVE_TERMIOS
-#define NO_TERMIO
-
-#define LIBS_DEBUG
-
-/* XXX emacs should not expect TAB3 to be defined.  */
-#define TABDLY OXTABS
-#define TAB3 OXTABS
-
 /* Tell Emacs that we are a terminfo based system; disable the use
    of local termcap.  (GNU uses ncurses.) */
 #ifdef HAVE_LIBNCURSES
@@ -49,11 +35,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #define LIBS_TERMCAP -lncurses
 #endif
 
-#define SYSV_SYSTEM_DIR
-
-/* GNU has POSIX-style pgrp behavior.  */
-#undef BSD_PGRPS
-
 /* Use mmap directly for allocating larger buffers.  */
 #ifdef DOUG_LEA_MALLOC
 #undef REL_ALLOC
@@ -63,17 +44,12 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #define ORDINARY_LINK
 #define DATA_START ({ extern int data_start; (char *) &data_start; })
 
-/* GNU now always uses the ELF format.  */
-#define UNEXEC unexelf.o
-
 /* Some losing code fails to include this and then assumes
    that because it is braindead that O_RDONLY==0.  */
 #ifndef NOT_C_CODE
 #include <fcntl.h>
 #endif
 
-#define NARROWPROTO 1
-
 #ifdef emacs
 #include <stdio.h>  /* Get the definition of _IO_STDIO_H.  */
 #if defined(_IO_STDIO_H) || defined(_STDIO_USES_IOSTREAM)
diff --git a/src/s/irix6-5.h b/src/s/irix6-5.h
index 57429e4166..abd87b4aa2 100644
--- a/src/s/irix6-5.h
+++ b/src/s/irix6-5.h
@@ -22,7 +22,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #define IRIX6_5			/* used in m/iris4d */
 #include "usg5-4.h"
 
-#undef sigsetmask  /* use sys_sigsetmask */
 #undef _longjmp /* use system versions, not conservative aliases */
 #undef _setjmp
 
@@ -46,9 +45,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #define SIGNALS_VIA_CHARACTERS
 
 /* 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
-#endif
 #define PTY_TTY_NAME_SPRINTF
 /* No need to get the pty name at all.  */
 #ifdef PTY_NAME_SPRINTF
@@ -80,10 +76,6 @@ char *_getpty();
   strcpy (pty_name, name);				    \
 }
 
-/* Since we use POSIX constructs in PTY_OPEN, we must force POSIX
-   throughout. */
-#define POSIX_SIGNALS
-
 /* Ulimit(UL_GMEMLIM) is busted...  */
 #define ULIMIT_BREAK_VALUE 0x14000000
 
diff --git a/src/s/lynxos.h b/src/s/lynxos.h
deleted file mode 100644
index 180b600569..0000000000
--- a/src/s/lynxos.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/* Definitions file for GNU Emacs running on LynxOS-3.0.1
-   Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
-                 2008, 2009, 2010 Free Software Foundation, Inc.
-
-This file is part of GNU Emacs.
-
-GNU Emacs is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-GNU Emacs is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
-
-/* LynxOS is almost a bsd 4.2 system */
-#include "s/bsd4-2.h"
-
-/* SYSTEM_TYPE should indicate the kind of system you are using.
- It sets the Lisp variable system-type.  */
-
-/* override the bsd definition */
-#undef SYSTEM_TYPE
-#define SYSTEM_TYPE "lynxos 3.0.1"
-
-/* System stuff redefined from bsd4-2.h */
-#undef KERNEL_FILE
-#define KERNEL_FILE "/lynx.os"
-#undef LDAV_SYMBOL
-#define LDAV_SYMBOL "load_average"
-
-/* misc defines */
-#define LNOFLSH 0
-
-/* COFF related */
-#define COFF
-#define NO_REMAP
-#define SECTION_ALIGNMENT 0x1
-#define COFF_BSD_SYMBOLS
-#define etext __etext
-#define edata __edata
-#define _start __text
-
-/* Compilation options */
-#define LIBS_DEBUG
-#define ORDINARY_LINK
-/* we define following to prevent all the lynxos's stupid compilation */
-/* warning messages */
-#define C_SWITCH_SYSTEM -D__NO_INCLUDE_WARN__
-#define LIBS_SYSTEM -lbsd
-
-/* arch-tag: fbc81ec9-1c45-416b-a368-799ae7c094a1
-   (do not change this comment) */
diff --git a/src/s/netbsd.h b/src/s/netbsd.h
index 17d3b33451..1af4c94d10 100644
--- a/src/s/netbsd.h
+++ b/src/s/netbsd.h
@@ -22,44 +22,20 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 /* Get most of the stuff from bsd-common */
 #include "bsd-common.h"
 
-#if defined (__alpha__) && !defined (__ELF__)
-#define NO_SHARED_LIBS
-#endif
-
-/* For mem-limits.h.  */
-#define BSD4_2
-
-#undef KERNEL_FILE
-#undef LDAV_SYMBOL
 #define HAVE_GETLOADAVG 1
 
 #define PENDING_OUTPUT_COUNT(FILE) ((FILE)->_p - (FILE)->_bf._base)
 
-/* netbsd uses OXTABS instead of the expected TAB3.  */
-#define TABDLY OXTABS
-#define TAB3 OXTABS
-
-#define HAVE_TERMIOS
-#define NO_TERMIO
-
-#define LIBS_DEBUG
 /* -lutil is not needed for NetBSD >0.9.  */
 /* #define LIBS_SYSTEM -lutil */
 #define LIBS_TERMCAP -ltermcap
 
 #define NEED_ERRNO
-#define SYSV_SYSTEM_DIR
 
-/* Netbsd has POSIX-style pgrp behavior.  */
-#undef BSD_PGRPS
-
-#if !defined (NO_SHARED_LIBS) && defined (__ELF__)
 #define START_FILES pre-crt0.o /usr/lib/crt0.o START_FILES_1 /usr/lib/crtbegin.o
-#define UNEXEC unexelf.o
 #define LIB_STANDARD -lgcc -lc -lgcc /usr/lib/crtend.o END_FILES_1
 #undef LIB_GCC
 #define LIB_GCC
-#endif
 
 #ifdef HAVE_CRTIN
 #define START_FILES_1 /usr/lib/crti.o 
@@ -71,7 +47,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #define AMPERSAND_FULL_NAME
 
-#ifdef __ELF__
 /* Here is how to find X Windows.  LD_SWITCH_X_SITE_AUX gives an -R option
    says where to find X windows at run time.  We convert it to a -rpath option
    which is what OSF1 uses.  */
@@ -92,8 +67,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #define LD_SWITCH_SYSTEM_TEMACS -Wl,-z,nocombreloc
 
-#endif /* __ELF__ */
-
 /* On post 1.3 releases of NetBSD, gcc -nostdlib also clears
    the library search parth, i.e. it won't search /usr/lib
    for libc and friends. Using -nostartfiles instead avoids
@@ -101,8 +74,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #define LINKER $(CC) -nostartfiles
 
-#define NARROWPROTO 1
-
 #define DEFAULT_SOUND_DEVICE "/dev/audio"
 
 /* Greg A. Woods <[email protected]> says we must include signal.h
diff --git a/src/s/openbsd.h b/src/s/openbsd.h
index 3b996de705..a74601d3ad 100644
--- a/src/s/openbsd.h
+++ b/src/s/openbsd.h
@@ -19,7 +19,6 @@
 
 #undef LD_SWITCH_SYSTEM_TEMACS
 #undef LD_SWITCH_SYSTEM
-#ifdef __ELF__
 
   /*  Han Boetes <[email protected]> says this
       is necessary,  otherwise Emacs dumps core on elf systems.  */
@@ -29,12 +28,5 @@
    default.  */
 #define LD_SWITCH_X_DEFAULT -L/usr/local/lib
 
-#else
-  
-#define LD_SWITCH_SYSTEM LD_SWITCH_SYSTEM_tmp
-#define LD_SWITCH_X_DEFAULT -L/usr/local/lib
-
-#endif
-
 /* arch-tag: 7e3f65ca-3f48-4237-933f-2b208b21e8e2
    (do not change this comment) */
diff --git a/src/s/sol2-3.h b/src/s/sol2-3.h
deleted file mode 100644
index fa05aa45b6..0000000000
--- a/src/s/sol2-3.h
+++ /dev/null
@@ -1,98 +0,0 @@
-/* Definitions file for GNU Emacs running on Solaris 2.3.
-
-   Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
-                 2008, 2009, 2010  Free Software Foundation, Inc.
-
-This file is part of GNU Emacs.
-
-GNU Emacs is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-GNU Emacs is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
-
-#include "usg5-4.h"
-
-#define SOLARIS2
-
-/* This triggers a conditional in xfaces.c.  */
-#define XOS_NEEDS_TIME_H
-
-#define POSIX
-
-#define LIBS_SYSTEM -lsocket -lnsl -lkstat
-
-/* Prefer kstat over kvm in getloadavg.c, kstat doesn't require root.
-   [email protected], 7/21/97.  Don't redefine if already defined
-   (e.g., by config.h). */
-#ifndef HAVE_LIBKSTAT
-#define HAVE_LIBKSTAT
-#endif
-
-/* [email protected] says Solaris has a bug related to X11R6-style
-   XIM support.  */
-
-#define INHIBIT_X11R6_XIM
-
-/* Must use the system's termcap, if we use any termcap.
-   It does special things.  */
-
-#ifndef TERMINFO
-#define LIBS_TERMCAP -ltermcap
-#endif
-
-#define USE_MMAP_FOR_BUFFERS 1
-
-#ifndef __GNUC__
-#define LD_SWITCH_SYSTEM -L /usr/ccs/lib LD_SWITCH_X_SITE_AUX
-/* eggert thinks all versions of SunPro C allowed this.  */
-#define C_DEBUG_SWITCH -g -O
-#else /* GCC */
-/* We use ./prefix-args because we don't know whether LD_SWITCH_X_SITE_AUX
-   has anything in it.  It can be empty.
-   This works ok in src.  Luckily lib-src does not use LD_SWITCH_SYSTEM.  */
-#define LD_SWITCH_SYSTEM -L /usr/ccs/lib \
- `./prefix-args -Xlinker LD_SWITCH_X_SITE_AUX`
-#endif /* GCC */
-
-/* Info from [email protected] suggests this is appropriate.  */
-#define POSIX_SIGNALS
-
-/* We don't need the definition from usg5-4.h with POSIX_SIGNALS.  */
-#undef sigsetmask
-
-/* This is the same definition as in usg5-4.h, but with sigblock/sigunblock
-   rather than sighold/sigrelse, which appear to be BSD4.1 specific and won't
-   work if POSIX_SIGNALS is defined.  It may also be appropriate for SVR4.x
-   (x<2) but I'm not sure.   [email protected] */
-/* This sets the name of the slave side of the PTY.  On SysVr4,
-   grantpt(3) forks a subprocess, so keep sigchld_handler() from
-   intercepting that death.  If any child but grantpt's should die
-   within, it should be caught after sigrelse(2). */
-
-#undef PTY_TTY_NAME_SPRINTF
-#define PTY_TTY_NAME_SPRINTF			\
-  {						\
-    char *ptsname (), *ptyname;			\
-						\
-    sigblock (sigmask (SIGCLD));		\
-    if (grantpt (fd) == -1)			\
-      { emacs_close (fd); return -1; }		\
-    sigunblock (sigmask (SIGCLD));		\
-    if (unlockpt (fd) == -1)			\
-      { emacs_close (fd); return -1; }		\
-    if (!(ptyname = ptsname (fd)))		\
-      { emacs_close (fd); return -1; }		\
-    strncpy (pty_name, ptyname, sizeof (pty_name)); \
-    pty_name[sizeof (pty_name) - 1] = 0;	\
-  }
-
-/* arch-tag: a8fe2e15-e517-49cb-a863-f346b80885fe
-   (do not change this comment) */
diff --git a/src/s/sol2-4.h b/src/s/sol2-4.h
deleted file mode 100644
index df8552e956..0000000000
--- a/src/s/sol2-4.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/* Handle Solaris 2.4.  */
-
-#include "sol2-3.h"
-
-#undef LD_SWITCH_SYSTEM
-
-/* `#ifdef USE_MOTIF' won't work here, since USE_MOTIF isn't defined yet.
-   Instead, dynamically check whether USE_MOTIF expands to something.  */
-#define NOT_USING_MOTIF { set x USE_MOTIF; test "$$2" = "USE_MOTIF"; }
-
-#ifndef __GNUC__
-#define LD_SWITCH_SYSTEM_TEMACS -L/usr/ccs/lib LD_SWITCH_X_SITE_AUX \
-  `NOT_USING_MOTIF || echo ' -R/usr/dt/lib'`
-#else /* GCC */
-/* We use ./prefix-args because we don't know whether LD_SWITCH_X_SITE_AUX
-   has anything in it.  It can be empty.
-   This works ok in temacs.  */
-#define LD_SWITCH_SYSTEM_TEMACS -L/usr/ccs/lib \
- `./prefix-args -Xlinker LD_SWITCH_X_SITE_AUX` \
-  `NOT_USING_MOTIF || echo ' -R/usr/dt/lib -L/usr/dt/lib'`
-
-/* Get rid of -traditional and let const really do its thing.  */
-#undef C_SWITCH_SYSTEM
-#undef const
-#endif /* GCC */
-
-/* Gregory Neil Shapiro <[email protected]> reports the Motif header files
-   are in this directory on Solaris 2.4.  */
-#define C_SWITCH_X_SYSTEM -I/usr/dt/include
-
-/* arch-tag: 6f0de37b-cfda-427a-a5ae-b83ed54aaae7
-   (do not change this comment) */
diff --git a/src/s/sol2-5.h b/src/s/sol2-5.h
deleted file mode 100644
index 90163987e6..0000000000
--- a/src/s/sol2-5.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/* Handle Solaris 2.5.  */
-
-#include "sol2-4.h"
-
-/* -lgen is needed for the regex and regcmp functions
-   which are used by Motif.  In the future we can try changing
-   regex.c to provide them in Emacs, but this is safer for now.  */
-#define LIB_MOTIF -lXm -lgen
-
-/* This is the only known way to avoid some crashes
-   that seem to relate to screwed up malloc data
-   after deleting a frame.  */
-/* rms: I think the problems using ralloc had to do with system
-   libraries that called the system malloc even if we linked in the
-   GNU malloc.  I could not see any way to fix the problem except to
-   have just one malloc and that had to be the system one.  */
-/* This is not always necessary.  Turned off at present for testers to
-   identify any problems with gmalloc more accurately.  */
-/* #define SYSTEM_MALLOC */
-
-/* There have problems reported with mmap at least on Solaris 2.6
-   and 2.7.  For simplicity, let's not use mmap for anything >= 2.5.
-   We can optimize this later.  */
-
-#undef USE_MMAP_FOR_BUFFERS
-
-/* Probably OK also on earlier versions.  */
-#define GC_SETJMP_WORKS 1
-#define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS
-
-/* arch-tag: 96d65526-21c9-4547-a797-2bd575c05be7
-   (do not change this comment) */
diff --git a/src/s/sol2-6.h b/src/s/sol2-6.h
index a43443e48c..8cd0151187 100644
--- a/src/s/sol2-6.h
+++ b/src/s/sol2-6.h
@@ -1,11 +1,126 @@
-/* Handle Solaris 2.6.  */
+/* Definitions file for GNU Emacs running on Solaris 2.6.
 
-#include "sol2-5.h"
+   Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+                 2008, 2009, 2010  Free Software Foundation, Inc.
 
-#if 0 /* dldump does not handle all the extensions used by GNU ld.  */
-#undef UNEXEC
-#define UNEXEC unexsol.o
+This file is part of GNU Emacs.
+
+GNU Emacs is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+GNU Emacs is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include "usg5-4.h"
+
+#define SOLARIS2
+
+/* This triggers a conditional in xfaces.c.  */
+#define XOS_NEEDS_TIME_H
+
+#define POSIX
+
+#define LIBS_SYSTEM -lsocket -lnsl -lkstat
+
+/* Prefer kstat over kvm in getloadavg.c, kstat doesn't require root.
+   [email protected], 7/21/97.  Don't redefine if already defined
+   (e.g., by config.h). */
+#ifndef HAVE_LIBKSTAT
+#define HAVE_LIBKSTAT
+#endif
+
+/* [email protected] says Solaris has a bug related to X11R6-style
+   XIM support.  */
+
+#define INHIBIT_X11R6_XIM
+
+/* Must use the system's termcap, if we use any termcap.
+   It does special things.  */
+
+#ifndef TERMINFO
+#define LIBS_TERMCAP -ltermcap
 #endif
 
+#ifndef __GNUC__
+/* eggert thinks all versions of SunPro C allowed this.  */
+#define C_DEBUG_SWITCH -g -O
+#endif /* GCC */
+
+/* This is the same definition as in usg5-4.h, but with sigblock/sigunblock
+   rather than sighold/sigrelse, which appear to be BSD4.1 specific and won't
+   work if POSIX_SIGNALS is defined.  It may also be appropriate for SVR4.x
+   (x<2) but I'm not sure.   [email protected] */
+/* This sets the name of the slave side of the PTY.  On SysVr4,
+   grantpt(3) forks a subprocess, so keep sigchld_handler() from
+   intercepting that death.  If any child but grantpt's should die
+   within, it should be caught after sigrelse(2). */
+
+#define PTY_TTY_NAME_SPRINTF			\
+  {						\
+    char *ptsname (), *ptyname;			\
+						\
+    sigblock (sigmask (SIGCLD));		\
+    if (grantpt (fd) == -1)			\
+      { emacs_close (fd); return -1; }		\
+    sigunblock (sigmask (SIGCLD));		\
+    if (unlockpt (fd) == -1)			\
+      { emacs_close (fd); return -1; }		\
+    if (!(ptyname = ptsname (fd)))		\
+      { emacs_close (fd); return -1; }		\
+    strncpy (pty_name, ptyname, sizeof (pty_name)); \
+    pty_name[sizeof (pty_name) - 1] = 0;	\
+  }
+
+/* `#ifdef USE_MOTIF' won't work here, since USE_MOTIF isn't defined yet.
+   Instead, dynamically check whether USE_MOTIF expands to something.  */
+#define NOT_USING_MOTIF { set x USE_MOTIF; test "$$2" = "USE_MOTIF"; }
+
+#ifndef __GNUC__
+#define LD_SWITCH_SYSTEM_TEMACS -L/usr/ccs/lib LD_SWITCH_X_SITE_AUX \
+  `NOT_USING_MOTIF || echo ' -R/usr/dt/lib'`
+#else /* GCC */
+/* We use ./prefix-args because we don't know whether LD_SWITCH_X_SITE_AUX
+   has anything in it.  It can be empty.
+   This works ok in temacs.  */
+#define LD_SWITCH_SYSTEM_TEMACS -L/usr/ccs/lib \
+ `./prefix-args -Xlinker LD_SWITCH_X_SITE_AUX` \
+  `NOT_USING_MOTIF || echo ' -R/usr/dt/lib -L/usr/dt/lib'`
+
+/* Get rid of -traditional and let const really do its thing.  */
+#undef C_SWITCH_SYSTEM
+#undef const
+#endif /* GCC */
+
+/* Gregory Neil Shapiro <[email protected]> reports the Motif header files
+   are in this directory on Solaris 2.4.  */
+#define C_SWITCH_X_SYSTEM -I/usr/dt/include
+
+/* -lgen is needed for the regex and regcmp functions
+   which are used by Motif.  In the future we can try changing
+   regex.c to provide them in Emacs, but this is safer for now.  */
+#define LIB_MOTIF -lXm -lgen
+
+/* This is the only known way to avoid some crashes
+   that seem to relate to screwed up malloc data
+   after deleting a frame.  */
+/* rms: I think the problems using ralloc had to do with system
+   libraries that called the system malloc even if we linked in the
+   GNU malloc.  I could not see any way to fix the problem except to
+   have just one malloc and that had to be the system one.  */
+/* This is not always necessary.  Turned off at present for testers to
+   identify any problems with gmalloc more accurately.  */
+/* #define SYSTEM_MALLOC */
+
+/* Probably OK also on earlier versions.  */
+#define GC_SETJMP_WORKS 1
+#define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS
+
 /* arch-tag: 71ea3857-89dc-4395-9623-77964e6ed3ca
    (do not change this comment) */
diff --git a/src/s/unixware.h b/src/s/unixware.h
index 934821dd16..9fedb42686 100644
--- a/src/s/unixware.h
+++ b/src/s/unixware.h
@@ -1,4 +1,71 @@
-#include "usg5-4-2.h"
+/* s/ file for Unixware.
+
+   Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+                 2008, 2009, 2010  Free Software Foundation, Inc.
+
+This file is part of GNU Emacs.
+
+GNU Emacs is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+GNU Emacs is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
+
+
+#include "usg5-4.h"
+
+/* [email protected] says these exist.  */
+#define HAVE_TCATTR
+/* #define HAVE_GETWD  (appears to be buggy on SVR4.2) */
+#undef HAVE_GETWD
+
+#undef HAVE_SYSV_SIGPAUSE
+
+/* Motif needs -lgen.  */
+#define LIBS_SYSTEM -lsocket -lnsl -lelf -lgen
+
+/* This is the same definition as in usg5-4.h, but with sigblock/sigunblock
+   rather than sighold/sigrelse, which appear to be BSD4.1 specific and won't
+   work if POSIX_SIGNALS is defined.  It may also be appropriate for SVR4.x
+   (x<2) but I'm not sure.   [email protected] */
+/* This sets the name of the slave side of the PTY.  On SysVr4,
+   grantpt(3) forks a subprocess, so keep sigchld_handler() from
+   intercepting that death.  If any child but grantpt's should die
+   within, it should be caught after sigrelse(2). */
+
+#define PTY_TTY_NAME_SPRINTF			\
+  {						\
+    char *ptsname(), *ptyname;			\
+						\
+    sigblock(sigmask(SIGCLD));			\
+    if (grantpt(fd) == -1)			\
+      fatal("could not grant slave pty");	\
+    sigunblock(sigmask(SIGCLD));		\
+    if (unlockpt(fd) == -1)			\
+      fatal("could not unlock slave pty");	\
+    if (!(ptyname = ptsname(fd)))		\
+      fatal ("could not enable slave pty");	\
+    strncpy(pty_name, ptyname, sizeof(pty_name)); \
+    pty_name[sizeof(pty_name) - 1] = 0;		\
+  }
+
+/* Use libw.a along with X11R6 Xt.  */
+#define NEED_LIBW
+
+/* [email protected] (Richard Anthony Ryan) says -lXimp
+   is needed in UNIX_SV ... 4.2 1.1.2.  */
+#define LIB_MOTIF -lXm -lXimp
+
+/* arch-tag: 9bbfcfc1-19be-45a1-9699-af57b87da2c6
+   (do not change this comment) */
+
 
 #define	PENDING_OUTPUT_COUNT(FILE) ((FILE)->__ptr - (FILE)->__base)
 
diff --git a/src/s/usg5-4-2.h b/src/s/usg5-4-2.h
deleted file mode 100644
index d7f2c60ffc..0000000000
--- a/src/s/usg5-4-2.h
+++ /dev/null
@@ -1,73 +0,0 @@
-/* s/ file for System V release 4.2.
-
-   Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
-                 2008, 2009, 2010  Free Software Foundation, Inc.
-
-This file is part of GNU Emacs.
-
-GNU Emacs is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-GNU Emacs is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
-
-
-#include "usg5-4.h"
-
-/* [email protected] says these exist.  */
-#define HAVE_TCATTR
-/* #define HAVE_GETWD  (appears to be buggy on SVR4.2) */
-#undef HAVE_GETWD
-
-/* Info from [email protected] suggests this is appropriate.  */
-#define POSIX_SIGNALS
-
-/* We don't need the definition from usg5-3.h with POSIX_SIGNALS.  */
-#undef sigsetmask
-#undef HAVE_SYSV_SIGPAUSE
-
-/* Motif needs -lgen.  */
-#define LIBS_SYSTEM -lsocket -lnsl -lelf -lgen
-
-/* This is the same definition as in usg5-4.h, but with sigblock/sigunblock
-   rather than sighold/sigrelse, which appear to be BSD4.1 specific and won't
-   work if POSIX_SIGNALS is defined.  It may also be appropriate for SVR4.x
-   (x<2) but I'm not sure.   [email protected] */
-/* This sets the name of the slave side of the PTY.  On SysVr4,
-   grantpt(3) forks a subprocess, so keep sigchld_handler() from
-   intercepting that death.  If any child but grantpt's should die
-   within, it should be caught after sigrelse(2). */
-
-#undef PTY_TTY_NAME_SPRINTF
-#define PTY_TTY_NAME_SPRINTF			\
-  {						\
-    char *ptsname(), *ptyname;			\
-						\
-    sigblock(sigmask(SIGCLD));			\
-    if (grantpt(fd) == -1)			\
-      fatal("could not grant slave pty");	\
-    sigunblock(sigmask(SIGCLD));		\
-    if (unlockpt(fd) == -1)			\
-      fatal("could not unlock slave pty");	\
-    if (!(ptyname = ptsname(fd)))		\
-      fatal ("could not enable slave pty");	\
-    strncpy(pty_name, ptyname, sizeof(pty_name)); \
-    pty_name[sizeof(pty_name) - 1] = 0;		\
-  }
-
-/* Use libw.a along with X11R6 Xt.  */
-#define NEED_LIBW
-
-/* [email protected] (Richard Anthony Ryan) says -lXimp
-   is needed in UNIX_SV ... 4.2 1.1.2.  */
-#define LIB_MOTIF -lXm -lXimp
-
-/* arch-tag: 9bbfcfc1-19be-45a1-9699-af57b87da2c6
-   (do not change this comment) */
diff --git a/src/s/usg5-4.h b/src/s/usg5-4.h
index c611911b0e..180045cb7c 100644
--- a/src/s/usg5-4.h
+++ b/src/s/usg5-4.h
@@ -63,13 +63,7 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* Special hacks needed to make Emacs run on this system.  */
 
-/*
- *	Make the sigsetmask function go away.  Don't know what the
- *	ramifications of this are, but doesn't seem possible to
- *	emulate it properly anyway at this point.
- */
-
-#define sigsetmask(mask)	/* Null expansion */
+#define POSIX_SIGNALS
 
 /* setjmp and longjmp can safely replace _setjmp and _longjmp,
    but they will run slower.  */
@@ -176,27 +170,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptmx");
 
-/* This sets the name of the slave side of the PTY.  On SysVr4,
-   grantpt(3) forks a subprocess, so keep sigchld_handler() from
-   intercepting that death.  If any child but grantpt's should die
-   within, it should be caught after sigrelse(2). */
-
-#define PTY_TTY_NAME_SPRINTF				\
-  {							\
-    char *ptsname (), *ptyname;				\
-							\
-    sighold (SIGCLD);					\
-    if (grantpt (fd) == -1)				\
-      { emacs_close (fd); return -1; }			\
-    sigrelse (SIGCLD);					\
-    if (unlockpt (fd) == -1)				\
-      { emacs_close (fd); return -1; }			\
-    if (!(ptyname = ptsname (fd)))			\
-      { emacs_close (fd); return -1; }			\
-    strncpy (pty_name, ptyname, sizeof (pty_name));	\
-    pty_name[sizeof (pty_name) - 1] = 0;		\
-  }
-
 /* Push various streams modules onto a PTY channel. */
 
 #define SETUP_SLAVE_PTY \
diff --git a/src/unexec.c b/src/unexec.c
index d1921069af..a1bb5460d3 100644
--- a/src/unexec.c
+++ b/src/unexec.c
@@ -630,7 +630,6 @@ mark_x (name)
     PERROR (name);
 }
 
-#ifndef COFF_BSD_SYMBOLS
 
 /*
  *	If the COFF file contains a symbol table and a line number section,
@@ -699,8 +698,6 @@ adjust_lnnoptrs (writedesc, readdesc, new_name)
   return 0;
 }
 
-#endif /* COFF_BSD_SYMBOLS */
-
 /* ****************************************************************
  * unexec
  *
@@ -724,9 +721,7 @@ unexec (new_name, a_name, data_start, bss_start, entry_address)
   if (make_hdr (new, a_out, data_start, bss_start, entry_address, a_name, new_name) < 0
       || copy_text_and_data (new, a_out) < 0
       || copy_sym (new, a_out, a_name, new_name) < 0
-#ifndef COFF_BSD_SYMBOLS
       || adjust_lnnoptrs (new, a_out, new_name) < 0
-#endif
       )
     {
       close (new);
diff --git a/src/xfns.c b/src/xfns.c
index 84d0d62220..45bea1e4ec 100644
--- a/src/xfns.c
+++ b/src/xfns.c
@@ -3376,7 +3376,12 @@ This function is an internal primitive--use `make-frame' instead.  */)
 #endif
 		       "internalBorderWidth", "internalBorderWidth",
 		       RES_TYPE_NUMBER);
-  x_default_parameter (f, parms, Qvertical_scroll_bars, Qright,
+  x_default_parameter (f, parms, Qvertical_scroll_bars,
+#if defined(USE_GTK) && defined(USE_TOOLKIT_SCROLL_BARS)
+		       Qright,
+#else
+		       Qleft,
+#endif
 		       "verticalScrollBars", "ScrollBars",
 		       RES_TYPE_SYMBOL);