Zac Medico schrieb: > On 07/01/2012 04:29 AM, Thomas Sachau wrote: >> Matt Turner schrieb: >>> On Fri, Jun 29, 2012 at 10:30 AM, Thomas Sachau <to...@gentoo.org> wrote: >>>> >>> >>> I'm interested in this because I'm regularly annoyed with the emul- >>> packages and also because multilib is pretty important for mips. >>> >>>> If a package has dependencies, then those dependencies are required to have >>>> at least the same targets enabled as the package >>> >>> That seems like the obvious (but perhaps naive) choice. What about >>> depending on packages that don't install libraries, like x11-proto/ >>> packages or generators like dev-util/indent? >>> >>> Maybe I just don't understand. Would these packages even have ABI flags? >> >> All packages do get the ABI flags (with the needed EAPI or via enabled >> portage feature, which is currently in the multilib branch). >> >> If a package does not install anything ABI-specific (no headers, no libs >> and no binaries), then there is no overhead, since it will just get >> compiled/installed for one ABI, even if multiple ABI flags are enabled. > > For a package like this that does not install anything ABI-specific, > does the package manager still execute phases for each enabled ABI, or > is there some way for the ebuild to indicate whether or not its phases > need to be executed for each enabled ABI? >
This is dynamicly checked at runtime, no need to modify the ebuilds and also no needless compilation, when there is no ABI-specific content. A more detailed answer at package manager level: After the src_install phase for the first requested ABI has been finished, the content of $DESTDIR is checked. If there is no ABI specific content, the other enabled ABIs are skipped and the following steps are done as usual. -- Thomas Sachau Gentoo Linux Developer
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