Well updating GCC (or glibc/binutils) is not always easy. This is because everything else depends on these packages. Updating GCC 4.2.0 to 4.2.2 would not be too hard. The difference between 4.0.3 and 4.2.2 may be bigger. But you can try it. I've upgraded glibc before and haven't had any problems so far. When you rebuilt from scratch everything is fine, but it takes a lot of time (if you do it by hand and not use scripts or something). Another problem is you might have some old headers or programs which were removed or renamed between gcc-4.0.3 and 4.2.2 and this can cause some vague incompatibilites when compiling. Anyway upgrading is easy for non-critical packages (these are glibc, gcc and binutils). If you upgrade gcc you risk rendering your system unusable, BUT I think you can upgrade to 4.2.2 without too much trouble judging from the differences between 4.0 and 4.2.
Success! 2007/11/8, juras <[EMAIL PROTECTED]>: > I have a BLFS system for some time. I started whith LFS-6.2 and BLFS-svn > before the 6.2 version was relesed. > > Now I am going to install ATLAS, GLS, Octave and while reading some > documents I found: > "... gcc4.2 is what the architectural defaults are built for, and > previous versions are likely to hurt your performance ..." > I have gcc-4.0.3 and without fortran. So I will have to install fortran > for gcc-4.0.3 or upgrade full compiler to gcc-4.2.2. > > But I am not aware of consequences which I may be facing after the upgrade. > > Can you also comment the idea of upgradeing other parts of the system, > not only gcc? I would prefere to upgrade rather than start everything > from the very beginning... > > Regards, > juras > > -- > http://linuxfromscratch.org/mailman/listinfo/blfs-support > FAQ: http://www.linuxfromscratch.org/blfs/faq.html > Unsubscribe: See the above information page > -- http://linuxfromscratch.org/mailman/listinfo/blfs-support FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page
