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authorLudovic Courtès <ludo@gnu.org>2013-05-24 22:21:24 +0200
committerLudovic Courtès <ludo@gnu.org>2013-05-24 22:30:58 +0200
commit9c1edabd8b95d698ba995653d465fcb70cd2409b (patch)
tree585fead8a546f2e6d9c9827434b0fb24807241de /doc/guix.texi
parent17bb886ff42afe7caa7b89878a563243239f9698 (diff)
downloadguix-9c1edabd8b95d698ba995653d465fcb70cd2409b.tar
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packages: Implement `package-cross-derivation'.
* guix/packages.scm (package-transitive-target-inputs, package-transitive-native-inputs): New procedures. (package-derivation): Parametrize `%current-target-system'. (package-cross-derivation): Implement. * guix/utils.scm (%current-target-system): New variable. * tests/packages.scm ("package-cross-derivation"): New test. * doc/guix.texi (Defining Packages): Document `package-cross-derivation'.
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@@ -919,6 +919,23 @@ must be a connection to the daemon, which operates on the store
(@pxref{The Store}).
@end deffn
+@noindent
+@cindex cross-compilation
+Similarly, it is possible to compute a derivation that cross-builds a
+package for some other system:
+
+@deffn {Scheme Procedure} package-cross-derivation @var{store} @
+ @var{package} @var{target} [@var{system}]
+Return the derivation path and corresponding @code{<derivation>} object
+of @var{package} cross-built from @var{system} to @var{target}.
+
+@var{target} must be a valid GNU triplet denoting the target hardware
+and operating system, such as @code{"mips64el-linux-gnu"}
+(@pxref{Configuration Names, GNU configuration triplets,, configure, GNU
+Configure and Build System}).
+@end deffn
+
+
@node The Store
@section The Store