-/*
- * Config file for xscreensaver, Copyright (c) 1991-1995 Jamie Zawinski.
+/* Config file for xscreensaver, Copyright (c) 1991-1996 Jamie Zawinski.
* This file is included by the various Imakefiles.
*/
-/* Uncomment the following line if you have the XIDLE extension installed.
- * This extension resides in .../contrib/extensions/xidle/ on the X11R5
- * contrib tape. (Turning on this flag lets XScreenSaver work better with
- * servers which support this extension; but it will still work with servers
- * which do not suport this extension, so it's a good idea to compile in
- * support for it if you can.)
- */
-/* #define HAVE_XIDLE_EXTENSION */
-
-/* Uncomment the following line if you have the MIT-SCREEN-SAVER extension
- * installed. This extension resides in .../contrib/extensions/screensaver/
- * on the X11R6 contrib tape.
- *
- * This extension does basically the same thing that the XIDLE extension does,
- * but there are two things wrong with it: first, because of the way the
- * extension was designed, the `fade' option to XScreenSaver will be uglier:
- * just before the screen fades out, there will be an unattractive flicker to
- * black, because this extension blanks the screen *before* telling us that it
- * is time to do so. Second, this extension is known to be buggy; on the
- * systems I use, it works, but some people have reported X server crashes as
- * a result of using it. XScreenSaver uses this extension rather
- * conservatively, because when I tried to use any of its more complicated
- * features, I could get it to crash the server at the drop of a hat.
- *
- * I wish someone would port the XIDLE extension to R6. Or I wish someone
- * would make the MIT-SCREEN-SAVER extension not be such a piece of junk.
- *
- * Note that the SGI X server also has an extension called SCREEN_SAVER.
- * That is a completely different extension, and XScreenSaver contains no
- * support for it (though it probably wouldn't be hard.)
- */
-/* #define HAVE_SAVER_EXTENSION */
-
/* Uncomment the following line if you have the XPM library installed.
* Some of the demos can make use of this if it is available.
*/
#define HAVE_XPM
+
/* Uncomment the following line if you don't have Motif. If you don't have
* Motif, then the screensaver won't have any dialog boxes, which means
* that it won't be compiled with support for demo-mode or display-locking.
*/
/* #define NO_MOTIF */
+
/* Uncomment the following line if for some reason the locking code doesn't
* work (for example, if you don't have the crypt() system call, or if you
* don't use standard passwd files.) If you need to do this, please let me
* know.
+ *
+ * I'm told that locking doesn't work for sites which run AFS. I don't know
+ * anything about how one codes authentication for AFS; if you do, please let
+ * me know...
*/
/* #define NO_LOCKING */
+
+/* Select supported server extensions.
+ * There are three distinct server extensions which are useful with
+ * XScreenSaver: XIDLE, MIT-SCREEN-SAVER, and SCREEN_SAVER.
+ *
+ * The XIDLE extension resides in .../contrib/extensions/xidle/ on the X11R5
+ * contrib tape. This extension lets the client get accurate idle-time
+ * information from the X server in a potentially more reliable way than by
+ * simply watching for keyboard and mouse activity. However, the XIDLE
+ * extension has apparently not been ported to X11R6.
+ *
+ * The SCREEN_SAVER extension is found (as far as I know) only in the SGI
+ * X server, and it exists in all releases since (at least) Irix 5. The
+ * relevant header file is /usr/include/X11/extensions/XScreenSaver.h.
+ *
+ * The similarly-named MIT-SCREEN-SAVER extension came into existence long
+ * after the SGI SCREEN_SAVER extension was already in use, and resides in
+ * .../contrib/extensions/screensaver/ on the X11R6 contrib tape. It is
+ * also found in certain recent X servers built in to NCD X terminals.
+ *
+ * The MIT extension does basically the same thing that the XIDLE extension
+ * does, but there are two things wrong with it: first, because of the way
+ * the extension was designed, the `fade' option to XScreenSaver will be
+ * uglier: just before the screen fades out, there will be an unattractive
+ * flicker to black, because this extension blanks the screen *before*
+ * telling us that it is time to do so. Second, this extension is known to
+ * be buggy; on the systems I use, it works, but some people have reported
+ * X server crashes as a result of using it. XScreenSaver uses this
+ * extension rather conservatively, because when I tried to use any of its
+ * more complicated features, I could get it to crash the server at the
+ * drop of a hat.
+ *
+ * In short, the MIT-SCREEN-SAVER extension is a piece of junk. The older
+ * SGI SCREEN_SAVER extension works great, as does XIDLE. It would be nice
+ * If those two existed on more systems, that is, would be adopted by the
+ * X Consortium in favor of their inferior "not-invented-here" entry.
+ */
+
+/* Uncomment the following line if you have the XIDLE extension installed.
+ * If you have the XIDLE extension, this is recommended. (You have this
+ * extension if the file /usr/include/X11/extensions/xidle.h exists.)
+ * Turning on this flag lets XScreenSaver work better with servers which
+ * support this extension; but it will still work with servers which do not
+ * suport it, so it's a good idea to compile in support for it if you can.
+ */
+/* #define HAVE_XIDLE_EXTENSION */
+
+/* Uncomment the following line if you have the MIT-SCREEN-SAVER extension
+ * installed. This is NOT RECOMMENDED. See the caveats about this extension,
+ * above. (It's available if the file /usr/include/X11/extensions/scrnsaver.h
+ * exists.)
+ */
+/* #define HAVE_MIT_SAVER_EXTENSION */
+
+
+/* Use the following line if you have the SGI SCREEN_SAVER extension; the
+ * default below should be correct (use it if and only if running on an SGI.)
+ * Compiling in support for this extension is recommended, if possible.
+ */
+#ifdef SGIArchitecture
+# define HAVE_SGI_SAVER_EXTENSION
+#endif
+
+
/* Uncomment the following line if your system doesn't have the select()
- * system call. If you need to do this, please let me know.
+ * system call. If you need to do this, please let me know. (I don't really
+ * think that any such systems exist in this day and age...)
*/
/* #define NO_SELECT */
+
/* Uncomment the following line if your system doesn't have the setuid(),
* setregid(), and getpwnam() library routines.
*
*/
/* #define NO_SETUID */
+
/* Uncomment the following line if your system uses `shadow' passwords,
* that is, the passwords live in /etc/shadow instead of /etc/passwd,
- * and one reads them with getspnam() instead of getpwnam().
+ * and one reads them with getspnam() instead of getpwnam(). (Note that
+ * SCO systems do some random other thing; others might as well. See the
+ * ifdefs in driver/lock.c if you're having trouble related to reading
+ * passwords.)
*/
/* #define HAVE_SHADOW */
-/* You may need to edit these to correspond to where Motif is installed.
+
+/* You may need to edit these to correspond to where Motif is installed,
+ * if your site has Motif installed in a nonstandard place.
*/
#ifndef NO_MOTIF
MOTIFINCLUDES = -I/usr/local/include/
MOTIFLIBS = -lXm
#endif
+
/* On some systems, only programs running as root can use the getpwent()
library routine. This means that, in order for locking to work, the
screensaver must be installed as setuid to root. Define this to make
that happen. (You must run "make install" as root for it to work.)
- (What systems other than HP and AIX need this? Let me know.)
+ (If your system needs this, and the default below is not correct,
+ please let me know.)
*/
-#if defined(HPArchitecture) || defined(AIXArchitecture) || defined(HAVE_SHADOW)
+#if defined(HPArchitecture) || defined(AIXArchitecture) || defined(HAVE_SHADOW) || defined(NetBSDArchitecture)
# define INSTALL_SETUID
#endif
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