Building (B)LFS with alternate toolchain

Alexvader · 03-16-2010, 02:40 PM

Hi

Is it possible to build (B)LFS with alternate C/C++ compilers like icc from INTEL ?

I have read somewhere that this is one of the "secrets" of RedHat vs CentOS... although the souces are freely available, the system where RedHat binaries are built is a highly customized and optimized structure, ... i.e. RedHat's are not built using RedHat's toolchains...

Would there be any gain of performance in doing this...?

BRGDS

Alex

crts · 03-17-2010, 09:21 AM

Quote:

Originally Posted by Alexvader

Hi

Is it possible to build (B)LFS with alternate C/C++ compilers like icc from INTEL ?

I have read somewhere that this is one of the "secrets" of RedHat vs CentOS... although the souces are freely available, the system where RedHat binaries are built is a highly customized and optimized structure, ... i.e. RedHat's are not built using RedHat's toolchains...

Would there be any gain of performance in doing this...?

BRGDS

Alex

Hi,

haven't heard of anyone yet, building their LFS with anything other than gcc. My guess is that it will be at least hard and it might raise a lot of dependency issues.

So what exactly have you heard about redhat? Are they using INTEL's c compiler?

Regarding the performance gain, since gcc provides many optimization options for a variety or target systems I'd say generally there will be no significant performance gains for the final, distributed system.

Alexvader · 03-17-2010, 05:02 PM

Hi

I have read somewhere that the toolchain used to build the RHELs is not FOSS... wether it is the INTEL dev tools, or RHEL is built cross compiling in an AIX or HP-UX host using their compilers i do not know...

Read it somewhere in the web.... do not remember which site...