gcc versions in fedora

[stardust496]

Hi all,

I am using FC 10. I have upgraded to the latest gcc version via yum -

$ yum list gcc-c++
Loaded plugins: refresh-packagekit
Installed Packages
gcc-c++.i386 4.3.2-7 installed


$ g++ -v
gcc version 4.3.2 20081105 (Red Hat 4.3.2-7) (GCC)


Now, in RHEL , the g++ 4.x compiler actually uses the libstdc++ that comes with g++3.4.x series. Is it the same story in Fedora?

Am I using an ancient libstdc++ or am I using the libstdc++ that comes with the upstream g++4.x series?

Many Thanks!

[Hlingler]

rpm -q libstdc++

V

[stardust496]

Thanks!

Someday I will hopefully become more proficient with yum and rpm and not have to bother with such trivial questions.

[Hlingler]

You can have your cake and eat it too: if necessary, the gcc-3.4 compilers and old libstdc++ libs are available:

~]$ rpm -qa |grep -i compat|sort
[...]
compat-gcc-34-3.4.6-8.i386
compat-gcc-34-c++-3.4.6-8.i386
compat-gcc-34-g77-3.4.6-8.i386
[...]
compat-libgcc-296-2.96-139.i386
[...]
compat-libstdc++-296-2.96-139.i386
compat-libstdc++-33-3.2.3-62.i386
[...]

V

[RupertPupkin]

Be careful with installing the compat-* packages, they could cause conflicts when compiling. For example, yesterday I tried to compile the latest Octave (3.0.3) from source, and I kept getting errors about some basic C++ functions not being defined properly. Looking through the error messages, I saw that the compat-gcc-c++ 3.x versions of libraries and headers were being used instead of the newer 4.x versions. So I removed the compat-gcc-34-c++ and compat-libstdc++-33 packages, and voila, octave compiled cleanly.