208 lines
6.5 KiB
Plaintext
208 lines
6.5 KiB
Plaintext
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Info on using Mesa 3.0 with Linux Quake I and Quake II
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Disclaimer
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----------
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I am _not_ a Quake expert by any means. I pretty much only run it to
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test Mesa. There have been a lot of questions about Linux Quake and
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Mesa so I'm trying to provide some useful info here. If this file
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doesn't help you then you should look elsewhere for help. The Mesa
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mailing list or the news://news.3dfx.com/3dfx.linux.glide newsgroup
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might be good.
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Again, all the information I have is in this file. Please don't email
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me with questions.
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If you have information to contribute to this file please send it to
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me at brianp@elastic.avid.com
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Linux Quake
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-----------
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You can get Linux Quake from http://www.idsoftware.com/
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Quake I and II for Linux were tested with, and include, Mesa 2.6. You
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shouldn't have too many problems if you simply follow the instructions
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in the Quake distribution.
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RedHat 5.0 Linux problems
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-------------------------
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RedHat Linux 5.x uses the GNU C library ("glibc" or "libc6") whereas
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previous RedHat and other Linux distributions use "libc5" for its
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runtime C library.
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Linux Quake I and II were compiled for libc5. If you compile Mesa
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on a RedHat 5.x system the resulting libMesaGL.so file will not work
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with Linux Quake because of the different C runtime libraries.
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The symptom of this is a segmentation fault soon after starting Quake.
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If you want to use a newer version of Mesa (like 3.x) with Quake on
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RedHat 5.x then read on.
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The solution to the C library problem is to force Mesa to use libc5.
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libc5 is in /usr/i486-linux-libc5/lib on RedHat 5.x systems.
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Emil Briggs (briggs@tick.physics.ncsu.edu) nicely gave me the following
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info:
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> I only know what works on a RedHat 5.0 distribution. RH5 includes
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> a full set of libraries for both libc5 and glibc. The loader ld.so
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> uses the libc5 libraries in /usr/i486-linux-libc5/lib for programs
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> linked against libc5 while it uses the glibc libraries in /lib and
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> /usr/lib for programs linked against glibc.
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>
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> Anyway I changed line 41 of mklib.glide to
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> GLIDELIBS="-L/usr/local/glide/lib -lglide2x -L/usr/i486-linux-libc5/lib"
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>
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> And I started quake2 up with a script like this
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> #!/bin/csh
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> setenv LD_LIBRARY_PATH /usr/i486-linux-libc5/lib
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> setenv MESA_GLX_FX f
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> ./quake2 +set vid_ref gl
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> kbd_mode -a
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> reset
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I've already patched the mklib.glide file. You'll have to start Quake
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with the script shown above though.
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**********************
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Daryll Strauss writes:
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Here's my thoughts on the problem. On a RH 5.x system, you can NOT build
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a libc5 executable or library. Red Hat just doesn't include the right
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stuff to do it.
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Since Quake is a libc5 based application, you are in trouble. You need
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libc5 libraries.
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What can you do about it? Well there's a package called gcc5 that does
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MOST of the right stuff to compile with libc5. (It brings back older
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header files, makes appropriate symbolic links for libraries, and sets
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up the compiler to use the correct directories) You can find gcc5 here:
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ftp://ecg.mit.edu/pub/linux/gcc5-1.0-1.i386.rpm
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No, this isn't quite enough. There are still a few tricks to getting
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Mesa to compile as a libc5 application. First you have to make sure that
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every compile uses gcc5 instead of gcc. Second, in some cases the link
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line actually lists -L/usr/lib which breaks gcc5 (because it forces you
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to use the glibc version of things)
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If you get all the stuff correctly compiled with gcc5 it should work.
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I've run Mesa 3.0B6 and its demos in a window with my Rush on a Red Hat
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5.1 system. It is a big hassle, but it can be done. I've only made Quake
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segfault, but I think that's from my libRush using the wrong libc.
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Yes, mixing libc5 and glibc is a major pain. I've been working to get
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all my libraries compiling correctly with this setup. Someone should
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make an RPM out of it and feed changes back to Brian once they get it
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all working. If no one else has done so by the time I get the rest of my
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stuff straightened out, I'll try to do it myself.
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- |Daryll
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*********************
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David Bucciarelli (tech.hmw@plus.it) writes:
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I'm using the Mesa-3.0beta7 and the RedHat 5.1 and QuakeII is
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working fine for me. I had only to make a small change to the
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Mesa-3.0/mklib.glide file, from:
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GLIDELIBS="-L/usr/local/glide/lib -lglide2x
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-L/usr/i486-linux-libc5/lib -lm"
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to:
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GLIDELIBS="-L/usr/i486-linux-libc5/lib -lglide2x"
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and to make two symbolic links:
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[david@localhost Mesa]$ ln -s libMesaGL.so libMesaGL.so.2
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[david@localhost Mesa]$ ln -s libMesaGLU.so libMesaGLU.so.2
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I'm using the Daryll's Linux glide rpm for the Voodoo2 and glibc (it
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includes also the Glide for the libc5). I'm not using the /dev/3Dfx and
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running QuakeII as root with the following env. var:
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export
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LD_LIBRARY_PATH=/dsk1/home/david/src/gl/Mesa/lib:/usr/i486-linux-libc5/lib
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I think that all problems are related to the glibc, Quake will never
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work if you get the following output:
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[david@localhost Mesa]$ ldd lib/libMesaGL.so
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libglide2x.so => /usr/lib/libglide2x.so (0x400f8000)
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libm.so.6 => /lib/libm.so.6 (0x40244000)
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libc.so.6 => /lib/libc.so.6 (0x4025d000)
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/lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x00000000)
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You must get the following outputs:
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[david@localhost Mesa]# ldd lib/libMesaGL.so
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libglide2x.so => /usr/i486-linux-libc5/lib/libglide2x.so
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(0x400f3000)
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[root@localhost quake2]# ldd quake2
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libdl.so.1 => /lib/libdl.so.1 (0x40005000)
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libm.so.5 => /usr/i486-linux-libc5/lib/libm.so.5 (0x40008000)
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libc.so.5 => /usr/i486-linux-libc5/lib/libc.so.5 (0x40010000)
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[root@localhost quake2]# ldd ref_gl.so
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libMesaGL.so.2 =>
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/dsk1/home/david/src/gl/Mesa/lib/libMesaGL.so.2 (0x400eb000)
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libglide2x.so => /usr/i486-linux-libc5/lib/libglide2x.so
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(0x401d9000)
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libX11.so.6 => /usr/i486-linux-libc5/lib/libX11.so.6
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(0x40324000)
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libXext.so.6 => /usr/i486-linux-libc5/lib/libXext.so.6
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(0x403b7000)
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libvga.so.1 => /usr/i486-linux-libc5/lib/libvga.so.1
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(0x403c1000)
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libm.so.5 => /usr/i486-linux-libc5/lib/libm.so.5 (0x403f5000)
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libc.so.5 => /usr/i486-linux-libc5/lib/libc.so.5 (0x403fd000)
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***********************
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Steve Davies (steve@one47.demon.co.uk) writes:
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Try using:
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export LD_LIBRARY_PATH=/usr/i486-linux-libc5/lib
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./quake2 +set vid_ref gl
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to start the game... Works for me, but assumes that you have the
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compatability libc5 RPMs installed.
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***************************
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WWW resources - you may find additional Linux Quake help at these URLs:
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http://quake.medina.net/howto
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http://webpages.mr.net/bobz
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http://www.linuxgames.com/quake2/
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----------------------------------------------------------------------
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