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build-system/python: Fix 'package-with-explicit-python'. 

Reported by Federico Beffa <beffa@ieee.org>
and Eric Bavier <ericbavier@gmail.com>.

* guix/build-system/python.scm (package-with-explicit-python): Do
  nothing when P's build system is not PYTHON-BUILD-SYSTEM.
This commit is contained in:
Ludovic Courtès 2014-12-23 19:11:03 +01:00
parent afc720d34c
commit 78a2745370
1 changed files with 18 additions and 24 deletions
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42
guix/build-system/python.scm
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@ -55,8 +55,7 @@ PYTHON-BUILD-SYSTEM, such that it is compiled with PYTHON instead. The
inputs are changed recursively accordingly. If the name of P starts with
OLD-PREFIX, this is replaced by NEW-PREFIX; otherwise, NEW-PREFIX is
prepended to the name."
(let* ((build-system (package-build-system p))
(rewrite-if-package
(let* ((rewrite-if-package
(lambda (content)
;; CONTENT may be a file name, in which case it is returned, or a
;; package, which is rewritten with the new PYTHON and NEW-PREFIX.
@ -68,28 +67,23 @@ prepended to the name."
(match-lambda
((name content . rest)
(append (list name (rewrite-if-package content)) rest)))))
(package (inherit p)
(name
(let ((name (package-name p)))
(if (eq? build-system python-build-system)
(string-append new-prefix
(if (string-prefix? old-prefix name)
(substring name (string-length old-prefix))
name))
name)))
(arguments
(let ((arguments (package-arguments p)))
(if (eq? build-system python-build-system)
(if (member #:python arguments)
(substitute-keyword-arguments arguments ((#:python p) python))
(append arguments `(#:python ,python)))
arguments)))
(inputs
(map rewrite (package-inputs p)))
(propagated-inputs
(map rewrite (package-propagated-inputs p)))
(native-inputs
(map rewrite (package-native-inputs p))))))
(if (eq? (package-build-system p) python-build-system)
(package (inherit p)
(name (let ((name (package-name p)))
(string-append new-prefix
(if (string-prefix? old-prefix name)
(substring name (string-length old-prefix))
name))))
(arguments
(let ((arguments (package-arguments p)))
(if (member #:python arguments)
(substitute-keyword-arguments arguments ((#:python p) python))
(append arguments `(#:python ,python)))))
(inputs (map rewrite (package-inputs p)))
(propagated-inputs (map rewrite (package-propagated-inputs p)))
(native-inputs (map rewrite (package-native-inputs p))))
p)))
(define package-with-python2
(cut package-with-explicit-python <> (default-python2) "python-" "python2-"))