hi i am using open suse 11.o with gcc 4.3.2. i am compileing a programme which requires libg2c. where can i find libg2c and how to install it ? can somebody explain me detail. thanks in advance

For my openSuSE, gcc is installed in /usr/lib/gcc/i586-suse-linux.I think it is same for you also. If you install old version that will create conflict with the new version.
So you have to create with new folder name.
If you a tar file of gcc ver 3, manually specify the path to other location. i.e. for ex --prefix=/usr/lib/gcc3.

while compiling your program, run like this ./configure CC=gcc-3.0
good luck !

@ raju.mopidevi : That is not correct, you can have all the available
versions installed at the same time.

The usual solution for 'libg2c' is packages from CentOS 5.4
(( I can see, that the compat-gcc-34-3.4.6 etc. in my Suse 11.0
is from Fedora 10.))
The CentOS packages http://mirror.centos.org/centos/5.4/os/i386/CentOS/
→ libg2c →
http://mirror.centos.org/centos/5.4/...4.6-4.i386.rpm
> compat-libf2c-34 : provides ..
/usr/lib/libg2c.so.0
/usr/lib/libg2c.so.0.0.0
Please do : 1) su , 2) cd /usr/lib/
3) ln -s libg2c.so.0.0.0 libg2c.so
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@knudfl ; Thanks for your info. Acutally I posted the way that I followed.
To run a mmac protocol with NS2, I searched for google. I find this link-- Running multiple versions of gcc..

Even my /usr/lib/gcc has two versions 4.3 and 4.4

Thanks all of you. knudfl you are the boss. I have installed successfully gcc version3 .it is present inside /usr/lib/gcc/i386-redhat-linux/3.4.6 and gcc4.3 is present inside /usr/lib/gcc/i586-suse-linux/4.3.1. also in usr/bin g77, g++, g++-4.3, gcc, gcc34, gcc-4.3 are present.I think gcc is a link to gcc-4.3 and g++ is link to g++-4.3.it has no g++-34.When i tried to install it it is asking for libstdc++ version 4.2.0. Where can i find it ?Now in a environment setup i set
after that when i tried to compile the programme (concom.c) it gives the error message

is there anything wrong in the installation ?

with regards Biplab.

The compat-gcc-34-c++-3.4.6 :
You will need compat-libstdc++-5.0.7-(121.1) as a dependency.
# zypper se libstdc++
# zypper in compat-libstdc++

If you have any problems with the CentOS packages :
I used the Fedora 10 compat, same names, the minor version is 9
instead of 4 but may be identical ( dated later ) ..
http://download.fedora.redhat.com/pu...6/os/Packages/
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Why would you compile concom.c ? ?
> > We talked about that 5 months ago > >
http://www.linuxquestions.org/questi...ble.-764705/#2

" 'concom.c' creates no objects, 'concom.c' is supposed to create
all the Makefiles. Please read the text in 'concom.c'. "

concom.c > > ""This is very simple C++ program which helps
to create make-files with the least troubles for user.""

I think, the command is ./concom.b
All the export commands are stipulated in the script 'setup2'.
'setup2' : Suggest : make a copy, e.g. setup3, edit it to your
requirements and run it :
sh (tcsh?) setup3
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Thank you . You are right.What i am trying to explain is I have successfully done all the installations,compilations etc in slc4, slc5 (X86 -64) machines and it is working fine.But i want to do it in suse 11.0. It is creating alot of problems.when i type ./concom.b the above mentioned error comes out which i could not solve. Can you please help me what i should do ? Thank you again.

" slc4, slc5 (X86 -64) " : Scientific Linux SL4C, SL5C ..

Is your Suse 11.0 install also x86_64 ? ?

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no its a 32 bit machine, but some how i solved the problem.if i have any problem i will inform in the forum again. Thank you verymuch. Thanks all of you