  Information for SCO Users
  David McCullough
  14 December 1994

  1.  Binary Distribution


  The following files are provided in the binary distribution, where XXX
  is the new version and NNN is the previous version:


          README.SCO
             This file.

          gunzip.Z
             The GNU uncompress utility.


          *XFXXX-doc.tz
             The XFree86 specific documentation.


          XFNNN-XXX.tz
             Files to upgrade from all NNN versions to XXX.  This
             file may not be present if the upgrade is too
             substantial (ie., X11R5 -> X11R6).

          XFXXX-Mono.tz
             The Mono server

          XFXXX-VGA16.tz
             The 16 colour VGA server

          XFXXX-SVGA.tz
             The Super VGA server

          XFXXX-S3.tz
             The S3 server

       There will most likely be more servers than listed here.
       You should select the server you need.  Check the directory
       listing for any other servers that may be there.

          *XFXXX-cfg.tz
             The local configuration files for xdm/fs/xinit.

          *XFXXX-bin.tz
             The bin directory, contains most executables.

          *XFXXX-lib.tz
             The shared and unshared libraries.

          *XFXXX-fnt1.tz
             75dpi and misc fonts.

          XFXXX-fnt2.tz
             100dpi and Speedo fonts.

          *XFXXX-inc.tz
             The X11 include files.

          XFXXX-man.tz
             The formatted man pages.

          XFXXX-lkit.tz
             The server link kit (all drivers + PEX).
     XFXXX-util.tz
        Lots of PD utilities provided as is.

     XFXXX-pex.tz
        All files relating to PEX including libraries and
        header files.  The LinkKit is required to obtain
        servers capable of running PEX.


  To obtain a minimum XFree86 installation you will require the archives
  marked with a '*' above, the server binary best suited to your machine
  and optionally "gunzip.Z".  All the files are compressed with "gzip"
  except of course "gunzip.Z" which is compressed using the conventional
  compress program.


  To install the XFree86 binaries just follow these steps.

     1. Obtain the files you require.


        as root,


     2. create a directory /usr/X11R6, permissions 755 should do nicely.

     3. cd /usr/X11R6

     4. extract the archives, for example:
                    gunzip < XFXXX-bin.tz | tar xvf -


     5. if you have installed man pages see the later section on setting
        up man pages.

     6. Look through /usr/X11R6/lib/X11/doc/INSTALL, especially section
        2 on configuring and using XFree86.   This should allow you to
        get a server up and running.  Before starting the server check
        in the later section ``Before Running XFree86'', in this
        document, to see if there are any system requirements you have
        to make for the server to operate correctly.

  If you intend using the programs from the utilities archive then you
  should be aware that they are provided as is.  They are not part of
  the XFree86 distribution nor are they part of the standard MIT distri-
  bution.  Every attempt is made to ensure that they work to a usable
  degree but they are not perfect.  All programs in the utilities
  archive come with a manual entry (which is also in the utilities
  archive).  Information on the author(s) can usually be located in the
  man page or by running the executable.



  2.  Source Distribution


  The SCO port comes as part of the standard XFree86 distribution.
  Consult the XFree86 README for more information on the location of
  sources.



  3.  Before Running XFree86



  Before you can run XFree86 with shared libraries enabled you must up
  the shared library count in the kernel.  This is only required for
  3.2.2 systems.  To accomplish this log in as root and run:

           cd /etc/conf/cf.d
           ./configure SHLBMAX=6
           cd ../bin
           ./idbuild



  The SCO xterm terminfo description is not compatible with the xterm in
  the R5 distribution.


  To use a Bus/Keyboard or PS2 mouse you should configure the mouse
  drivers under SCO as above using 'mkdev mouse'. You may then use the
  OsMouse option in your XF86Config to specify that XFree86 should use
  the SCO mouse drivers.  To do this, set the Protocol to "OsMouse" in
  the Pointer section of your XF86Config file.  You can also use
  "OsMouse" for your serial mouse, especially if you are having trouble
  getting your mouse to work using the XFree86 mouse drivers.


  If you are using an Accelerated Localbus/EISA card you may wish to
  install the "dmmap" driver.  This driver allows the server to use a
  linear address mapping in high memory when accessing the card. The
  dmmap driver comes in two forms, a binary archive which is supplied
  with the full binary distribution and a source archive which is
  located in /usr/X11R6/lib/X11/etc.  Both distributions provide
  instructions for installation/removal within the README file.



  4.  Switching Consoles


  XFree86 uses similar console switching keys as the SCO R4 and R5
  servers.  That is, Ctrl-PrntScr takes you to the next console along
  from the one X is running on.  If this is the last console it will
  take you to console 1.  Those interested in modifying the console
  switching should look in
  xc/programs/Xserver/hw/xfree86/common/xf86Events.c.



  5.  Setting up Man Pages


  After compiling the tree, or after installing the binary distribution
  you can get man to recognise the XFree86 man pages by adding
  /usr/X11R6/man to the MANPATH in /etc/default/man, the line should
  look similar to:

           MANPATH=/usr/man:/usr/X11R6/man



  This allows all users to view the X man pages.  You may change your
  own MANPATH environment variable if you do not want everyone to access
  the man pages.


  By default the man pages are compressed using "pack" under 3.2.2 and
  "compress" under 3.2.4 to conserve space.  If you do not want to
  compress the man pages change CompressManPages to NO in your
  xf86site.def.  Those using the binary distribution can use "unpack" or
  "uncompress" as appropriate to uncompress the man pages.



  6.  Using SCO binaries/servers.


  XFree86 will accept connections from SCO binaries (R3 upwards) and the
  SCO R5 server will also accept connections from XFree86 binaries. This
  means you may mix and match the two if you have ODT.  For example you
  may still use the Motif window manager (mwm) if you prefer.



  7.  Compiling XFree86 under 3.2.2


  Currently XFree86 is configured to install under /usr/X11R6.  The
  binary distribution will be configured to go into this directory.  If
  you are compiling your own XFree86 there is no reason why this cannot
  be changed.  Check in the X11 config/README on how to change your
  ProjectRoot.

  The defaults are set such that you should only require minimal changes
  to the site.def or the xf85site.def file.  The BOOTSTRAPCFLAGS do most
  of the work for you. The defaults will use gcc 2 or above and they
  also compile for shared libraries and setup formatted man pages using
  compression. The most likely Parameters you will be interested in
  changing are:

     1. What Fonts etc get compiled.

     2. What gets installed (XdmConfig, FSConfig, ...)

  Use gcc, preferably 2.5.8 or later but an earlier version may still do
  the job.  Configure it with "./configure i386-*-sco".


  Make sure you do the fixincludes for gcc.


  In order to compile the current XFree86 version for SCO you will have
  to create the following header files in the appropriate places.


       A) create a /usr/include/sys/uio.h containing the following:
           #ifndef _XFREE86_UIO_
           #define _XFREE86_UIO_ 1

           #ifndef __IOVEC__
           #define __IOVEC__ 1
           typedef struct iovec {
               caddr_t iov_base;
               int iov_len;
           } iovec_t;
           #endif /* __IOVEC__ */

           #endif /* _XFREE86_UIO_ */

       B) create a /usr/include/net/errno.h containing





      #ifndef _XFREE86_ERRNO_
      #define _XFREE86_ERRNO_ 1
      #include <errno.h>
      #endif /* _XFREE86_ERRNO_ */

  C) create a /usr/include/sys/bsdtypes.h which is empty for
  now.

  D) create a < sys/time.h > under the gnu include directory
  containing the following (this protects the system header
  file from multiple inclusions) You do not have to change the
  system header file!
      #ifndef _SYS_TIME_H_
      #define _SYS_TIME_H_ 1
      #include < /usr/include/sys/time.h >    #endif /* _SYS_TIME_H_ */



  You also need to obtain a copy of libcrypt or the international crypt
  supplement from SCO.  The supplement is available on the SCO ftp site,
  sosco.sco.com (The name may have changed) as an SLS, lng225.  This is
  required for the correct compilation of "xdm".


  To compile from here, follow the XFree86 README, basically after
  obtaining X11r5, applying the XFree86 patches and completing the above
  changes you should only need to run:

           make BOOTSTRAPCFLAGS="-DSYSV -Di386 -DSCO" World



  The install script mit/util/scripts/bsdinst.sh will not set 's' bit
  permissions when installing over the top of a previously installed
  XFree86. To fix this apply the following patch from the directory con-
  taining the 'mit' directory.  This is personal taste only, if you are
  installing through symbolic links then leave this one alone.
  ----------8<-----------------8<------------------------------------
  *** mit/util/scripts/bsdinst.sh%        Tue Mar  2 14:27:16 1993
  --- mit/util/scripts/bsdinst.sh Tue Mar  2 14:27:17 1993
  ***************
  *** 150,154 ****
    # This rm is commented out because some people want to be able to
    # install through symbolic links.  Uncomment it if it offends you.
  ! # rm -f $dst/$srcbase
    (cd $srcdir ; $installcmd -f $dst $flags $src)

  --- 150,154 ----
    # This rm is commented out because some people want to be able to
    # install through symbolic links.  Uncomment it if it offends you.
  ! rm -f $dst/$srcbase
    (cd $srcdir ; $installcmd -f $dst $flags $src)
  ----------8<-----------------8<------------------------------------



  8.  Compiling XFree86 under 3.2.4


  Compiling gcc2.5.8 is accomplished after doing the following.

           ./configure i386-*-sco3.2v4.2



  DO NOT USE "./configure i386-*-sco" it will not work.
  Make sure you run the "make fix-includes" after you have installed.


  It is recommended that you use a gcc compiled without any changes to
  the value of __STDC__.  Some people may have compiled gcc by adding
  the define "-DSTDC_VALUE=0" to their CPP_PREDEFINES flag.  If you have
  done this and are able to recompile gcc without this change then you
  should.  Otherwise refer to the end of this section for instructions
  on how to fix the XFree86 tree so that it will still compile.



  Compiling XFree86,

     1. Check that you have a "sys/uio.h" as there have been reports of
        systems which have it and systems which don't!  If you already
        have one it need not be changed.  Otherwise see the 3.2.2
        section above on how to create one.

     2. Check the paragraph on site.def/xf86site.def in the compiling
        for 3.2.2 section.

     3. Add a -DSCO324 to the BOOTSTRAPCFLAGS when you do the make
        World.
                make BOOTSTRAPCFLAGS="-DSYSV -Di386 -DSCO -DSCO324" World

     Under 3.2.4 several different options become activated.

        o  Compress is used instead of pack for compressing the man
           pages.

        o  The default compile line will contain -D_NO_PROTOTYPE instead
           of -DNO_PROTOTYPE as this is what 3.2.4 expects.

     4. If you have problems with mkshlib reporting an error like
                mkshlib: : cannot exec /bin/sh


     when compiling libX11, then the following should fix it,
             rm -f lib/X/libX11.a
             env - make

     The error is related to a lack of environment space.

  9.  Compiling with __STDC__=0


  DO NOT make these changes unless you have gcc configured with
  STDC_VALUE=0.  You can test for this by compiling this small program.
  If it prints out STDC_VALUE=1 do not make these changes.  If it prints
  out STDC_VALUE=0 then you will have to make the following changes.

           main() { printf("STDC_VALUE=%d\n", __STDC__); }



  So now you have a gcc compiled with STDC_VALUE=0 which cannot be
  recompiled with a STDC_VALUE=1. To compile XFree86 with this compiler
  you will have to edit mit/config/x386.cf.  Look for the pattern
  GCC_STDC_VALUE and replace the 1 by a 0.  For example the line

           #define GCC_STDC_VALUE 1



  should become,
           #define GCC_STDC_VALUE 0



  It is recommended to use gcc compiled without the STDC_VALUE=0 for
  building XFree86.  It is, however, possible with the above changes.
  These changes may become obsolete or invalid in a later version of
  XFree86.



  10.  Relevant Documentation


  Some relevant documentation for SCO Users and Developers can be found
  in the following files.

     README
        the standard XFree86 README (/usr/X11R6/lib/X11/doc)

     README.SVR3
        Although a lot of this readme is based on Interactive a
        substantial proportion is still relevant.

     All of the VGA/Config documentation.
        /usr/X11R6/lib/X11/doc/VideoModes.doc and the README files for
        particular video cards.


  11.  Known Problems


     o  After running the server you may see some strange characters in
        your input to the shell.  This is due to some unprocessed
        scancodes and is of no concern.  This will be fixed in a future
        release.


     o  Not all of the applications in /usr/X11R6/bin have been
        debugged.


     o  Shared libraries are not implemented in XFree86 3.1 yet.



  12.  Trouble Shooting


     Problem:

          Server aborts with the error message, "Failed to map
          video display memory".


     Causes:

          Your system does not have the correct
          /etc/conf/pack.d/cn/class.h, You can confirm this by
          editing the file and looking for the string "SVGA", if it
          is not there then you should re-install this file from
          the "Extended Utilities" diskettes provided with your OS.
          If this is not possible then installing the "dmmap"
          driver from the distribution may allow the server to
          operate correctly.

     Problem:

          xf86install does not work.


     Causes:

          You should not be running xf86install when using the
          XFree86 server under SCO.  It is used for Interactive
          (ISC) installations.


     Problem:

          The server starts but the screen is not aligned correctly
          or is shaky and impossible to view.


     Causes:

          This is most likely due to an incorrect XF86Config setup.
          Look for the files README.Config  VideoModes.doc (in
          /usr/X11R6/lib/X11/doc with the binary distribution).
          These files explains how to fix up your video modes.


     Problem:

        1. Can only run a limited number of xterms.

        2. xterm does not work but other programs like xclock do work.


     Causes:

          Not enough or no pseudo ttys devices are present on your
          system.  Depending on which version of SCO you are using
          you will have to do different things.


             3.2.2
                cd /etc/conf/cf.d; ./configure and increase the
                number of pseudo ttys.  Rebuild the kernel.  "ls
                -al /dev/ttyp0 /dev/ptyp0" to get the major numbers
                for the slave and master drivers.  Use mknod to
                create the extra devices using the naming schemes
                ttyp0-9a-f and ptyp0-9a-f.

             3.2.4
                Run "mkdev ptty" and increase the number of ptty's.


     Problem:

          When running curses/termcap applications in an xterm the
          output gets corrupted especially when scrolling.


     Causes:

        1. You are running an original 1.3 distribution of XFree86.
           Update to the latest version (2.0 or greater).

        2. You have resized the window and not ran "eval `resize`"
           before using your application.  The SCO operating system does
           not support dynamic resizing or xterms fully so this command
           must be run after resizing an xterm in order for
           curses/termcap applications to operate correctly.

     Problem:

        1. When starting X it dies with an error "Cannot access a needed
           shared library".

        2. When starting an X application is dies with the above error.

     Causes:

        1. You do not have the binaries installed in the correct
           directory.  Check that they are in /usr/X11R6

        2. You have upgraded to a new binary distribution which has a
           new version of the shared libraries which are not compatible
           with your old binaries.  To fix this you will need to re-
           install the old shared libraries or recompile your
           application against the new libraries.

     Problem:


          My SCO 3.2.4 system fails to build libXext.a for shared
          libraries.


     Causes:


          This behaviour was observed when compiling with a
          STDC_VALUE=0 for gcc.  mkshlib was core dumping on build-
          ing the shared library in this case.  Using a new gcc
          without the STDC_VALUE=0 or using a 3.2.2 mkshlib appears
          to fix this problem.


     Problem:


          When linking against the SCO motif library I get an unre-
          solved external for "XtDisplayStringConversionWarning"
          when using gcc.


     Causes:


          The SCO library is compiled with limited length identi-
          fiers.  To work around this add the following code to
          your application when compiling under XFree86 with gcc
          and SCO motif.
              #ifdef SCO
              void XtDisplayStringConversionWarnin(dpy, from, toType)
                  Display*  dpy;
                  String    from;
                  String    toType;
              { XtDisplayStringConversionWarning(dpy, from, toType); }
              #endif



     Problem:


     When compiling the XFree86 source under 3.2.4, libX11
     fails to get built with an error like "mkshlib : : cannot
     exec /bin/sh"


     Causes:

          Read the section on compiling for 3.2.4.  To fix this use
          "env - make".


     Problem:

          The server fails to run and prints out a line similar to:

          XFree86: Cannot open /dev/spx for ???? listener: No such
          file or directory


     Causes:


          All SCO unix installations appear to have the Streams
          pseudo tty driver installed its just not all the devices
          are present.


             1. there should be a /etc/conf/pack.d/sp directory,

             2. /etc/conf/sdevice.d/sp should have a 'Y' in it.

             3. You need a file in /etc/conf/node.d which contains
                something like:
                        clone   spx             c       sp
                        sp      X0S             c       127
                        sp      X0R             c       126
                        sp      X1S             c       125
                        sp      X1R             c       124
                        sp      X2S             c       123
                        sp      X2R             c       122
                        sp      X3S             c       121
                        sp      X3R             c       120
                        sp      X4S             c       119
                        sp      X4R             c       118
                        sp      X5S             c       117
                        sp      X5R             c       116
                        sp      X6S             c       115
                        sp      X6R             c       114
                        sp      X7S             c       113
                        sp      X7R             c       112


          if you don't have something like this (maybe called
          "Xsco") then create one and that should fix your problem.
          As far as I can tell the streams pseudo tty driver should
          be there.

          The simplest way to get the devices if you had to create
          this file is to rebuild the kernel and the environment.
          If you don't want to do this then:

                  touch /etc/.new_unix
                  cd /etc/conf/bin
                  ./idmkenv


     and try it out.


  13.  Acknowledgements


  Thanks to the Core team for their previous and continuing help with
  the SCO work.  Many thanks to Stacey Campbell at SCO for all the
  advice and insights provided.  Thanks to SCO in general for making
  information available for XFree86 development.

  Thanks also to Peter Eubert (peter.eubert@iwb.mw.tu-muenchen.dbp.de)
  and Kent Hamilton (kenth@stl.scscom.COM) for input on compiling under
  3.2.4 systems.  Larry Plona (faxi@world.std.com) and Didier Poirot
  (dp@chorus.fr) for their input on xdm and 3.2.4 compilation under 3.1.
  And of course the beta list for its input on everything.

  Special thanks to Jerry Whelan (guru@stasi.bradley.edu) for providing
  an ftp site for the binary distribution.


  Generated from XFree86: xc/programs/Xserver/hw/xfree86/doc/sgml/SCO.sgml,v 3.5 1995/01/25 11:08:52 dawes Exp $













































$XFree86: xc/programs/Xserver/hw/xfree86/doc/README.SCO,v 3.8 1995/01/25 11:15:50 dawes Exp $
$XConsortium: README.SCO,v 1.8 95/01/27 15:58:16 kaleb Exp $
