How to emerge different versions , ebuilds of php

Question

I'm trying to compile a lower version of php (5.2) as gentoo is selecting 5.3 and i'm having some coding issues with the new version

nano /etc/portage/package.use

=dev-lang/php-5.2.14 ~amd64

still when I emerge emerge -av php

is stil selecting version 5.3 which is by default

how else can I force emerge to select the version I want

ls /usr/portage/dev-lang/php/ ChangeLog php-5.2.14.ebuild php-5.3.4.ebuild Manifest php-5.2.16.ebuild php-5.3.5.ebuild files/ php-5.2.17.ebuild metadata.xml php-5.3.3-r1.ebuild

Answer 1

You should find the old ebuild package, it should be in portage directory.

Then, if I remember correctly, the comand to run was "ebuild old-package.ebuild" and it will compile it.

Answer 2

didn't emerge spit an error notification immediately? keyword specifications are supposed to go into /etc/portage/package.keywords.

@comment:

emerge -av =php-5.2.17

if any of them are keyworded, then:

echo "=dev-lang/php-5.2.17 ~amd64" >> /etc/portage/package.keywords

Answer 3

First, php 5.2.17 already has amd64 in its keywords so ~amd64 would do nothing.

Second, it is almost never a good idea to attempt to mix ~amd64 and amd64 That is why you set ACCEPT_KEYWORDS=~amd64 (or amd64) in /etc/make.conf. It is a per-host variable.

Third, you should use /etc/portage/package.mask like so:

>dev-lang/php-5.2.17

This will prevent all ebuilds with version greater than 5.2.17 to be masked.

Then run emerge -upv --deep --newuse php.

Answer 4

PHP versions are now slotted in Gentoo, so you can have easily either version, or even both at the same time on system and switch between them with eselect. There is a complete guide on the Gentoo home page on how to correctly migrate to slotted PHP versions.