Ralf Corsepius wrote:
On Mon, 2007-11-05 at 19:03 +0900, John Summerfield wrote:
The standard way in this case is to follow the supplier's advice:FSF in
this case. It should install to /usr/local, well out of your way and
defined by standards to be used this way.
If you do this, you are replacing the "system compiler" with a local one
(/usr/local is special to gcc!). You will rarely want to do this under
linux.
It's true that installing binaries to /usr/local/bin makes it the
default compiler, but you do get to choose with your PATH settings.
Much less error prone is to install to a
prefix != /usr and prefix != /usr/local.
The LSB recommended way would be to install to /opt or a subdirectory
thereof (e.g. --prefix=/opt/gcc42).
/opt commonly seems to be populated with rpms. I'd keep out of it:
07:56 [root@numbat ~]# rpm -qf /opt/Adobe/Reader8/bin/acroread
AdobeReader_enu-8.1.1-1
07:56 [root@numbat ~]#
I prefer --prefix=/usr/local/gcc42 over /opt anything. The vendor
(Fedora in this case) is forbidden the use of /usr/local (and
/var/local) beyond the basic layout whereas vendors often use /opt.
--
Cheers
John
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