Yes they are a remote users Do you know any how to document ? On Thu, 5 Aug 2004 23:06:37 -0700, Nifty Hat Mitch <mitch48@xxxxxxxxxxxxx> wrote: > On Sat, Jul 31, 2004 at 06:51:10AM +0300, regatta wrote: > > Reply-To: For users of Fedora Core releases <fedora-list@xxxxxxxxxx> > > > > Thak you all for the replys > > I don't want to run 2 X servers, I want to install 2 versions because > > some of my users want to use some libraries in the new version without > > losing the old one > .... > > > > > smarty pants! > > > > Sorry, I don't get the joke. Is it one? > > Jokes in a multi language community can be fun. > ;-) > > Yes you can have a second environment for X. Developers do this all the > time. For X this is not trivial and involves a number of layers that you > have not been clear about. There will always be some hooks left in > the source tree that make it possible. > > to start... > /usr/lib/X11 is linked to ../X11R6/lib/X11 > > There is no reason you cannot build and populate ../X11R6modA. Then > fiddle with the ld link load paths and $PATH so your users can use > what ever they want. > > Since we are talking about nearly 4000 files (fonts, shared objects, > programs, multi language support and more) this task is bigger than > a bread box. > > Since many library functions are controlled by 'ld', it is possible to > set one or more environment variable to control dynamic linking or > even set things at the link stage when the object is compiled. > See the ld man page... > > i.e. LD_RUN_PATH LD_LIBRARY_PATH > > This trick of taking control of the link loader (ld) is commonly used > to develop and test new library code (Fortran libs, Perl libs, c > language, math libs, any .so ). You will see examples in the context > of Java. > > In my /usr/bin/java I see lines like: > > elif [ "`echo $1 |cut -b1-2`" = "-D" ]; then > if [ "`echo $1 |cut -b1-20`" = "-Djava.library.path=" ]; then > export LD_LIBRARY_PATH=`echo $1 |cut -b21-`:$LD_LIBRARY_PATH > > This is an education: > > $ find /usr/X11R6/ -type f -print0 | xargs -0 grep PATH > > The point is that depending on what your users are asking of you, > it can be easy or just a pain. > > Little of this demands root permissions with the possible exception of > the server itself. "startx" could be hacked to have a clone called > "newstartx". It can reset search paths and fun stuff as needed. > > Are these remote users? > > -- > T o m M i t c h e l l > Just say no to 74LS73 in 2004 > > > > > -- > fedora-list mailing list > fedora-list@xxxxxxxxxx > To unsubscribe: http://www.redhat.com/mailman/listinfo/fedora-list > -- Best Regards, -------------------- -*- If Linux doesn't have the solution, you have the wrong problem -*-
