diff options
Diffstat (limited to 'guix/build-system.scm')
-rw-r--r-- | guix/build-system.scm | 68 |
1 files changed, 62 insertions, 6 deletions
diff --git a/guix/build-system.scm b/guix/build-system.scm index c618a5e243..f185d5704f 100644 --- a/guix/build-system.scm +++ b/guix/build-system.scm @@ -1,5 +1,5 @@ ;;; GNU Guix --- Functional package management for GNU -;;; Copyright © 2012, 2013 Ludovic Courtès <ludo@gnu.org> +;;; Copyright © 2012, 2013, 2014 Ludovic Courtès <ludo@gnu.org> ;;; ;;; This file is part of GNU Guix. ;;; @@ -18,17 +18,73 @@ (define-module (guix build-system) #:use-module (guix records) + #:use-module (ice-9 match) #:export (build-system build-system? build-system-name build-system-description - build-system-builder - build-system-cross-builder)) + build-system-lower + + bag + bag? + bag-name + bag-build-inputs + bag-host-inputs + bag-target-inputs + bag-outputs + bag-arguments + bag-build + + make-bag)) (define-record-type* <build-system> build-system make-build-system build-system? (name build-system-name) ; symbol (description build-system-description) ; short description - (build build-system-builder) ; (store system name source inputs) - (cross-build build-system-cross-builder ; (store system x-system ...) - (default #f))) + (lower build-system-lower)) ; args ... -> bags + +;; "Bags" are low-level representations of "packages". Here we use +;; build/host/target in the sense of the GNU tool chain (info "(autoconf) +;; Specifying Target Triplets"). +(define-record-type* <bag> bag %make-bag + bag? + (name bag-name) ;string + (build-inputs bag-build-inputs ;list of packages + (default '())) + (host-inputs bag-host-inputs ;list of packages + (default '())) + + ;; "Target inputs" are packages that are built natively, but that are used + ;; by target programs in a cross-compilation environment. Thus, they act + ;; like 'inputs' as far as search paths are concerned. The only example of + ;; that is the cross-libc: it is an input of 'cross-gcc', thus built + ;; natively; yet, we want it to be considered as a target input for the + ;; purposes of $CPATH, $LIBRARY_PATH, etc. + (target-inputs bag-target-inputs + (default '())) + + (outputs bag-outputs ;list of strings + (default '("out"))) + (arguments bag-arguments ;list + (default '())) + (build bag-build)) ;bag -> derivation + +(define* (make-bag build-system name + #:key source (inputs '()) (native-inputs '()) + (outputs '()) (arguments '()) + target) + "Ask BUILD-SYSTEM to return a 'bag' for NAME, with the given SOURCE, +INPUTS, NATIVE-INPUTS, OUTPUTS, and additional ARGUMENTS. If TARGET is not +#f, it must be a string with the GNU triplet of a cross-compilation target. + +This is the mechanism by which a package is \"lowered\" to a bag, which is the +intermediate representation just above derivations." + (match build-system + (($ <build-system> _ description lower) + (apply lower name + #:source source + #:inputs inputs + #:native-inputs native-inputs + #:outputs outputs + #:target target + arguments)))) |