Comments on: GCC 2.95.3 Guide

By: Chithra

Chithra — Fri, 04 Mar 2011 21:44:47 +0000

I am currently working on ns2.34 on ubuntu10.04 version.. for my research purpose i need to use the 2.26 version (since i wanna work on EDCA simulation). i know gcc4.3 (currently what i have) is not compatible with ns2.26.. kindly guide me, which gcc version should i need to use for ns2.26 n how can i get it..

By: Nasim Mansurov

Nasim Mansurov — Mon, 15 Feb 2010 21:53:40 +0000

Ali, you are most welcome! You can find an older version of Linux from the Internet, so try those older releases for testing purposes :)

By: Ali

Ali — Sat, 13 Feb 2010 01:33:42 +0000

First of all, tanks a lot for your quick response,
You have reason, I am running a more recent version of Linux with newer headers,
In fact I am a new Linux user, I am a PhD student in networking in the first year,
I need to simulate using ns2 (Network Simulator 2),
An old version of ns, the ns2.26 needs the gcc version 2.95.3
Actually, I have installed the latest version of ns, the ns2.34 and all is ok,
Maybe after I will be obliged to use ns2.26 for academic reasons, in this case I will return to you to ask my questions,
Finally, tanks for your response

By: Nasim Mansurov

Nasim Mansurov — Fri, 12 Feb 2010 20:14:47 +0000

Ali, looks like you are missing a header file called “lowlevellock.h”. I believe you are running a more recent version of Linux with newer headers. Why do you need to go back to 2.95.3? I would suggest using the latest version that came with your linux distribution.

By: Ali

Ali — Thu, 11 Feb 2010 18:05:12 +0000

All is ok until I write the make command
I obtain the following error:

…/../gcc-2.95.3/libio/libio.h:167,
from
…/../gcc-2.95.3/libio/iolibio.h:1,
from
…/../gcc-2.95.3/libio/libioP.h:47,
from
…/../gcc-2.95.3/libio/iogetline.c:26:
/usr/include/bits/stdio-lock.h:24: lowlevellock.h: No
such file or directory
make[2]: *** [iogetline.o] Error 1
make[2]: Leaving directory
`/tmp/objdir/i686-pc-linux-gnu/libio’
make[1]: *** [all-target-libio] Error 2
make[1]: Leaving directory `/tmp/objdir’
make: *** [bootstrap] Error 2

can you help me plz

By: Luis

Luis — Wed, 09 Jul 2008 19:03:18 +0000

following your instructions to install gcc-2.95.3 getting the error message:
***The command ‘cc -o conftest -g conftest’ failed
***You must set the environment variable CC to a working compiler
I removed the gcc-4.3 version from the system (Fedora Core7), what othe compiler can be used to get the gcc-2.95.3 properly installed?
Thanks
Luis

By: robertn

robertn — Mon, 15 Nov 2004 01:43:00 +0000

Another site (Linux from Scratch) had other compile options such as –enable-languages-c,c++;
Is this available or necessary if one does not enable it as above. Also, my kernel compiles of mandrake linux 2.4.21-0.32 kernel are not automatically providing a kernel.h updated as in

ls -l /boot/kernel.h-2.4.21-0.32mdk
-rw-r–r– 1 root root 441 Jul 27 21:16 /boot/kernel.h-2.4.21-0.32mdk

this demonstrates that I still have this old build kernel.h and hence it seems I will never boot mk custom kernel which is labelled 2.3.21-0.32mdkcustom in the Makefile

A parting note; I think it would be helpful for newbies to have it noted that the gcc package that comes with the distribution must be used to build this older gcc version and that some recommend setting a further scripting enabler of –prefix=/opt/gcc-2.95.3 so as to load this version away from the newer version (in /opt/gcc-2.95.3 directory) to not confuse things. Alas some linking of libraries may be necessary here and so perhaps this is just another layer of confusion..

for i in /opt/gcc-2.95.3/lib/*.so*; do mv -f $i /usr/lib;
ln -sf /usr/lib/`basename $i` /opt/gcc-2.95.3/lib; done

I do not know if this accomplishes it but it describes the idea.

If this is done; the make command using the early gcc is

make CC=/opt/gcc.2.95.3/bin/gcc dep && clean && bzImage ; for example

http://www.tldp.org/LDP/lfs/html/chapter06/gcc-2953.html isthe reference link