On 08/31/2012 04:03 PM, Zac Medico wrote: > For those who may not know, chromium-os currently uses a > hard-host-depends ebuild as a workaround for our lack of HDEPEND support > [1]. We could easily add HDEPEND in EAPI 5 if we want, since we already > have a Portage patch attached to bug #317337 [2]. Here is a summary of > what that Portage patch will do: > > In EAPI 5 or later, DEPEND has been divided into two parts: > DEPEND for build-time target dependencies, and HDEPEND for > build-time host dependencies. This division is designed > specifically to minimize difficulty in the process of > adapting ebuilds that were written for earlier EAPIs, > and therefore it also minimizes the adjustments that > ebuild developers will have to make to the thought > processes involved when writing ebuilds from scratch. In > an environment that does not involve cross-compilation, > HDEPEND behaves the same as DEPEND. When an ebuild is > converted from EAPI 4 or earlier to EAPI 5 or later, > in order to support cross-compilation environments, some > dependencies may need to be migrated to HDEPEND. > > For ebuilds that have EAPI 5 or later, the emerge > --root-deps option has no effect since it is made obsolete > by division between DEPEND and HDEPEND. If EAPI 4 or > earlier ebuilds are used in combination with EAPI 5 or > later ebuilds, the --root-deps behavior will still be > applied to the EAPI 4 or earlier ebuilds (there is no > behavior change for ebuilds having older EAPIs). > > [1] > http://www.chromium.org/chromium-os/how-tos-and-troubleshooting/portage-build-faq > [2] https://bugs.gentoo.org/show_bug.cgi?id=317337
I like this. It has my support.
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