Hi all,

I've recently come back to Debian as a main Desktop distro. I'm running Squeeze with Linux and X from the Backports.

I was hoping GCC 4.5 or 4.6 would be in the Backports, but no such luck.

Question: what is the cleanest, least intrusive, and most elegant way to get one of these toolchains into Debian Squeeze?

Particularly, I mean to install to /usr/local/*, not to change the core glibc. In my eye, that's basically the same as not using Squeeze anymore.

Currently I am thinking just to build from source, but maybe there's something I've missed (hopefully.)

Thank you!

What do you mean ? ?
GCC version 4.5 or 4.6 doesn't require a different glibc.

The usual way : An install with '--prefix/usr/local/gcc45/' ( ' gcc46/' ) would be OK.
The binaries can then be linked to /usr/bin as gcc45 and g++45.

Examples : 4.5 , post #2 here
http://www.linuxquestions.org/questi...-1-a-842567/#2

4.6 , post #8 here
http://www.linuxquestions.org/questi...hine-929660/#8

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@ knudfl, thanks for the reply.

So, I've done the dirty work, and have built GCC 4.7.0 on Debian Squeeze.

Tales of the adventure, here: http://nosemaj.org/debian-gcc-4-7

So now my question is, is there any chance to remove the explicit dependencies, so I can install the thing into /usr/, alongside gcc 4.4, 4.3, 4.2 ? (GMP, MPC, MPFR, PPL, CLooG) ?

How do all four of 4.1-4.4 manage to coexist on Debian w/o multiple versions of the dependencies?

Wouldn't installing to a prefix of /usr/local/gcc47/ as you suggest require me still to set LD_LIBRARY_PATH before using it each time?

Thanks again for your help.

# 3
No. As you can see from post #2, it is this simple : cd /usr/bin/
ln -s /usr/local/gcc47/bin/gcc gcc47
ln -s /usr/local/gcc47/bin/g++ g++47

Please have a look at the default Debian Squeeze gcc's :
g++-4.3, g++-4.4 : They have unique file names, e.g. /usr/bin/g++-4.3.

Dependencies for gcc-4.7 : libgmp.so.10, libgmpxx.so.4, libmpfr.so.4 etc.
You can have them in /usr/lib/. I.e. also unique file names: No conflicts.
A complete install of new GMP, MPC, MPFR, PPL, CLooG to /usr/ : No.
Only the non conflicting library files.
Not difficult, as the default gcc-4.4 only seems to depend on one library,
= /usr/lib/libgmp.so.3 ( And may be /usr/lib/libmp.so.3 ).
The dependencies can be compared here :
gcc-4.4 http://packages.debian.org/squeeze/g++-4.4
gcc-4.7 http://packages.debian.org/sid/g++-4.7

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