This is my information about library.

[root@localhost jrtplib]# ls
jrtplib-2.8 jrtplib-2.8.tar.gz
[root@localhost jrtplib]# cd jrt*
[root@localhost jrtplib-2.8]# ls
ChangeLog rtpcontributingsources.h rtppacketprocessor.cpp
config.log rtpdebug.cpp rtppacketprocessor.h
config.status rtpdebug.h rtprandom.cpp
configure rtpdefines.h rtprandom.h
configure.in rtpdestlist.cpp rtprtcpmodule.cpp
doc rtpdestlist.h rtprtcpmodule.h
examples rtperror.cpp rtpsession.cpp
jrtplib2_8.dsp rtperror.h rtpsession.h
jrtplib2_8.dsw rtpexceptionstructs.h rtpsourcedata.cpp
Makefile rtphandlers.cpp rtpsourcedata.h
Makefile.in rtphandlers.h rtpsourcedescription.cpp
README.TXT rtpiptable.cpp rtpsourcedescription.h
rtpconfig.h rtpiptable.h rtpsources.cpp
rtpconfig_unix.h rtplocalinfo.cpp rtpsources.h
rtpconfig_unix.h.in rtplocalinfo.h rtpsrclist.cpp
rtpconfig_win.h rtpmcasttable.cpp rtpsrclist.h
rtpconnection.cpp rtpmcasttable.h rtpstructs.h
rtpconnection.h rtppacket.cpp rtptimeutil.cpp
rtpcontributingsources.cpp rtppacket.h rtptimeutil.h
[root@localhost jrtplib-2.8]#

I want to install the library "jrtplib-2.8", How to install it?

./configure
make
su
make install

You can also ./configure --help to see options you can set

I just install "JThread library". and it have some error.
How to fig about that
This's al my work and my problems.

[root@localhost jthread-1.0.0]# ls
ChangeLog config.status copyheaderfiles.bat jthread.dsp LICENSE.MIT README.TXT
config.cache configure doc jthread.dsw Makefile src
config.log configure.in include lib Makefile.in
[root@localhost jthread-1.0.0]# ./configure
loading cache ./config.cache
checking for gcc... (cached) gcc
checking whether the C compiler (gcc ) works... yes
checking whether the C compiler (gcc ) is a cross-compiler... no
checking whether we are using GNU C... (cached) yes
checking whether gcc accepts -g... (cached) yes
checking for c++... (cached) c++
checking whether the C++ compiler (c++ ) works... yes
checking whether the C++ compiler (c++ ) is a cross-compiler... no
checking whether we are using GNU C++... (cached) yes
checking whether c++ accepts -g... (cached) yes
checking whether gcc and cc understand -c and -o together... (cached) yes
checking for ld... (cached) ld
checking arguments for ld... -shared -soname
checking for ar... (cached) ar
checking arguments for ar... qc
checking how to run the C preprocessor... (cached) gcc -E
checking for pthread.h... (cached) yes
creating ./config.status
creating Makefile
creating src/Makefile
creating doc/Makefile
[root@localhost jthread-1.0.0]# make
make[1]: Entering directory `/home/jvoip/JThread/jthread-1.0.0/src'
cp -f jmutex.o jthread.o ../lib/
cp -f *.h ../include/
make[1]: Leaving directory `/home/jvoip/JThread/jthread-1.0.0/src'
make[1]: Entering directory `/home/jvoip/JThread/jthread-1.0.0/doc'
latex manual.tex
make[1]: latex: Command not found
make[1]: *** [manual.ps] Error 127
make[1]: Leaving directory `/home/jvoip/JThread/jthread-1.0.0/doc'
make: *** [sharedlib] Error 1
[root@localhost jthread-1.0.0]#

It looks like you need to install latex first.

What is latex?

Where I find latex to install ? I find it on internet but it have many latex

What is your linux distribution ?

I'm using linux 9.0

I'm using linux Redhat 9.0

So you'll probably have an rpm on your Red Hat 9 install discs somewhere. I use Mandrake 10, a Red Hat-based distro, and latex is included in mine. Does Red Hat have a package manager thingy that will make finding (and installing) the rpm easier? If so, use it to search for and install latex, and then try ./configure again. Repeat this process until successful!

my install disc can't read,pls tell me, Where does to find the source of Latex?

Do you have TeX already? (Type "man tex" to quickly find out).

[root@localhost root]# man tex
No manual entry for tex

I don't have TeX

pls, Tell me how to do further?

Hmmm. Well, the project home page is http://www.latex-project.org/ but reading it it seems awfully complicated. To download a full TeX system is a very big download indeed it seems, so much so that you almost might as well download your distro install discs instead, if the ones you have are unusable. You could certainly do with a usable set.

Put your distrib CD in the drive then mount it :
mount /mnt/cdrom

find the latex rpm :
find /mnt/cdrom -name "latex*rpm"

If not found, umount /mnt/cdrom and repeat the procedure with all your distrib cds until you find it, then install rpm from here.