| <section id='package-ebuild-eapi-3'> |
| <title>EAPI 3</title> |
| <section id='package-ebuild-eapi-3-helpers'> |
| <title>Helpers</title> |
| <section id='package-ebuild-eapi-3-helpers-unpack'> |
| <title>unpack</title> |
| <section id='package-ebuild-eapi-3-helpers-unpack-xz'> |
| <title>Support for the xz file extension</title> |
| <para> |
| The unpack helper now supports the xz file extension. |
| </para> |
| </section> |
| </section> |
| </section> |
| <section id='package-ebuild-eapi-3-prefix'> |
| <title>Support for installation prefix</title> |
| <section id='package-ebuild-eapi-3-prefix-helpers'> |
| <title>Helpers</title> |
| <para> |
| Beginning with EAPI 3, all helpers use ${ED} instead of ${D} |
| when appropriate. For example, see econf and einstall below. |
| </para> |
| <section id='package-ebuild-eapi-3-prefix-helpers-econf'> |
| <title>econf</title> |
| <programlisting> |
| ${ECONF_SOURCE:-.}/configure \ |
| ${CBUILD:+--build=${CBUILD}} \ |
| --datadir="${EPREFIX}"/usr/share \ |
| --host=${CHOST} \ |
| --infodir="${EPREFIX}"/usr/share/info \ |
| --localstatedir="${EPREFIX}"/var/lib \ |
| --prefix="${EPREFIX}"/usr \ |
| --mandir="${EPREFIX}"/usr/share/man \ |
| --sysconfdir="${EPREFIX}"/etc \ |
| ${CTARGET:+--target=${CTARGET}} \ |
| ${EXTRA_ECONF} \ |
| configure options || die "econf failed" |
| </programlisting> |
| </section> |
| <section id='package-ebuild-eapi-3-prefix-helpers-einstall'> |
| <title>einstall</title> |
| <para> |
| Note that, for make-based packages, 'emake install DESTDIR=${D}' (with |
| DESTDIR=${D} rather than ${ED}) is still preferred over einstall. |
| </para> |
| <programlisting> |
| make \ |
| prefix=${ED}/usr \ |
| datadir=${ED}/usr/share \ |
| infodir=${ED}/usr/share/info \ |
| localstatedir=${ED}/var/lib \ |
| mandir=${ED}/usr/share/man \ |
| sysconfdir=${ED}/etc \ |
| ${EXTRA_EINSTALL} \ |
| make options \ |
| install |
| </programlisting> |
| </section> |
| </section> |
| <section id='package-ebuild-eapi-3-prefix-variables'> |
| <title>Variables</title> |
| <table><title>Installation Prefix Variables</title> |
| <tgroup cols='2' align='left' > |
| <colspec colname='name'/> |
| <colspec colname='description'/> |
| <thead> |
| <row> |
| <entry>Variable Name</entry> |
| <entry>Description</entry> |
| </row> |
| </thead> |
| <tbody> |
| <row> |
| <entry>ED</entry> |
| <entry>Contains the path |
| "${D%/}${EPREFIX}/" for convenience purposes. |
| For EAPI values prior to EAPI 3 which do not |
| support ${ED}, helpers use ${D} where they would |
| otherwise use ${ED}. Do not modify this variable. |
| </entry> |
| </row> |
| <row> |
| <entry>EPREFIX</entry> |
| <entry>Contains the offset |
| that this Portage was configured for during |
| installation. The offset is sometimes necessary |
| in an ebuild or eclass, and is available in such |
| cases as ${EPREFIX}. EPREFIX does not contain a |
| trailing slash, therefore an absent offset is |
| represented by the empty string. Do not modify |
| this variable. </entry> |
| </row> |
| <row> |
| <entry>EROOT</entry> |
| <entry>Contains |
| "${ROOT%/}${EPREFIX}/" for convenience purposes. |
| Do not modify this variable. </entry> |
| </row> |
| </tbody> |
| </tgroup> |
| </table> |
| </section> |
| </section> |
| </section> |