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| author |   Ulrich Müller <ulm@gentoo.org> | 2020-02-08 20:43:23 +0100 |
|---|---|---|
| committer | Ulrich Müller <ulm@gentoo.org> | 2020-02-11 12:38:00 +0100 |
| commit | 3b8fa72d91bbdd08aa08f7e7bf0ca66833095186 (patch) | |
| tree | ac5d3a0407786a7c860d006d1f50d934647ec504 /general-concepts | |
| parent | Makefile: Remove quirks necessary for installing in-place. (diff) | |
| download | devmanual-3b8fa72d91bbdd08aa08f7e7bf0ca66833095186.tar.gz devmanual-3b8fa72d91bbdd08aa08f7e7bf0ca66833095186.tar.bz2 devmanual-3b8fa72d91bbdd08aa08f7e7bf0ca66833095186.zip | |
ebuild-writing/eapi: Move EAPI=4 information to other sections.
- Utilities die, nonfatal: New section in ebuild-writing/error-handling,
new chapter function-reference/error-functions
- dodoc -r: Already in function-reference/install-functions,
add additional example to ebuild-writing/functions/src_install
- doins symlink support:
Incorporated into function-reference/install-functions
- dosed, dohard banned: Not mentioned anywhere else
- econf --disable-dependency-tracking: New section about econf options
in ebuild-writing/functions/src_configure/configuring
- Controllable compression and docompress:
New chapter ebuild-writing/functions/src_install/docompress
- USE dependency defaults: Incorporated into general-concepts/dependencies
- pkg_pretend: Already in ebuild-writing/functions/pkg_pretend
- default src_install: Already in ebuild-writing/functions/src_install
- pkg_info: Incorporated into ebuild-writing/functions/pkg_info
- REQUIRED_USE: Already in ebuild-writing/variables
- MERGE_TYPE, REPLACING_VERSIONS, REPLACED_BY_VERSION:
Moved to ebuild-writing/variables
- DOCS: Incorporated into ebuild-writing/variables
- AA, KV removed: Not mentioned anywhere else
- RDEPEND=DEPEND: Already handled in commit 5a946b4
Signed-off-by: Ulrich Müller <ulm@gentoo.org>
Diffstat (limited to 'general-concepts')
| -rw-r--r-- | general-concepts/dependencies/text.xml | 20 | ||||
| -rw-r--r-- | general-concepts/use-flags/text.xml | 8 | ||||
| -rw-r--r-- | general-concepts/virtuals/text.xml | 2 |
3 files changed, 20 insertions, 10 deletions
diff --git a/general-concepts/dependencies/text.xml b/general-concepts/dependencies/text.xml index 2aca289..ff198fb 100644 --- a/general-concepts/dependencies/text.xml +++ b/general-concepts/dependencies/text.xml @@ -572,15 +572,25 @@ There are also shortcuts for conditional situations: <body> <p> -If a dependency is introducing or removing a <c>USE</c> flag in new versions, a use -dependency default may be used. Appending a <c>(+)</c> or <c>(-)</c> suffix will indicate -whether the absence of the flag from a particular version should indicate its -presence or absence. +If a dependency is introducing or removing a <c>USE</c> flag in a new package +version, a <c>(+)</c> or <c>(-)</c> may be added to the use-dependency +specification to define a default value in case the flag does not exist in the +target package. The <c>(+)</c> indicates that the missing flag is assumed to be +enabled, <c>(-)</c> the opposite. </p> + <p> -<c>>=dev-libs/boost-1.48[threads(+)]</c> will treat all versions without <c>threads</c> as having it set. +For example, the following will treat all <c>boost</c> versions without the +<c>threads</c> flag as having it enabled, and all <c>gcc</c> versions without +the <c>openmp</c> as having it disabled: </p> +<codesample lang="ebuild"> +DEPEND=" + >=dev-libs/boost-1.48[threads(+)] + sys-devel/gcc[openmp(-)]" +</codesample> + </body> </subsection> </section> diff --git a/general-concepts/use-flags/text.xml b/general-concepts/use-flags/text.xml index 30b19f7..295bb8f 100644 --- a/general-concepts/use-flags/text.xml +++ b/general-concepts/use-flags/text.xml @@ -316,10 +316,10 @@ src_compile() { </codesample> <p> -In some exceptional cases, above policy would break reverse USE -dependencies. To avoid this, the ebuild can specify allowed USE flag -combinations with <c>REQUIRED_USE</c> (available in EAPI 4). See section -<uri link="::ebuild-writing/eapi/#EAPI=4"/> for a description +In some exceptional cases, above policy would break reverse USE dependencies. +To avoid this, the ebuild can specify allowed USE flag combinations with +<c>REQUIRED_USE</c>. See section +<uri link="::ebuild-writing/variables/#REQUIRED_USE"/> for a description of its syntax. </p> diff --git a/general-concepts/virtuals/text.xml b/general-concepts/virtuals/text.xml index 4f8b96d..bcea98d 100644 --- a/general-concepts/virtuals/text.xml +++ b/general-concepts/virtuals/text.xml @@ -24,7 +24,7 @@ An example of a virtual: </p> <codesample lang="ebuild"> -EAPI=4 +EAPI=7 DESCRIPTION="Virtual for C++ tr1 <type_traits>" SLOT="0" |