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gnu: Python: Remove bundled libraries.

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Fixes <https://bugs.gnu.org/32957>.

* gnu/packages/python.scm (python-2.7)[source](snippet): Remove bundled
libffi, expat and zlib.  Add substitution to make pyexpat use system expat.
[arguments]: Add "--with-system-expat" to #:configure-flags.
[inputs]: Add EXPAT.
* gnu/packages/python.scm (python-3.7)[source](snippet): Delete bundled expat
and add the same pyexpat substitution.
* gnu/packages/python.scm (python2-minimal, python-minimal)[inputs]: Add EXPAT.
This commit is contained in:
Marius Bakke 2019-03-23 15:31:09 +01:00
parent d3b22d488b
commit d1659c0fb2
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38
gnu/packages/python.scm
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@ -26,7 +26,7 @@
;;; Copyright © 2016, 2017 ng0 <ng0@n0.is>
;;; Copyright © 2016 Dylan Jeffers <sapientech@sapientech@openmailbox.org>
;;; Copyright © 2016 David Craven <david@craven.ch>
;;; Copyright © 2016, 2017, 2018 Marius Bakke <mbakke@fastmail.com>
;;; Copyright © 2016, 2017, 2018, 2019 Marius Bakke <mbakke@fastmail.com>
;;; Copyright © 2016, 2017 Stefan Reichör <stefan@xsteve.at>
;;; Copyright © 2016 Dylan Jeffers <sapientech@sapientech@openmailbox.org>
;;; Copyright © 2016, 2017 Alex Vong <alexvong1995@gmail.com>
@ -85,6 +85,7 @@ (define-module (gnu packages python)
#:use-module (gnu packages sqlite)
#:use-module (gnu packages tcl)
#:use-module (gnu packages tls)
#:use-module (gnu packages xml)
#:use-module (guix packages)
#:use-module (guix download)
#:use-module (guix utils)
@ -109,11 +110,19 @@ (define-public python-2.7
"python-2.7-source-date-epoch.patch"
"python-2.7-adjust-tests.patch"))
(modules '((guix build utils)))
;; suboptimal to delete failing tests here, but if we delete them in the
;; arguments then we need to make sure to strip out that phase when it
;; gets inherited by python and python-minimal.
(snippet
'(begin
;; Ensure the bundled copies of these libraries are not used.
(for-each delete-file-recursively
'("Modules/_ctypes/libffi" "Modules/expat" "Modules/zlib"))
(substitute* "Modules/Setup.dist"
;; Link Expat instead of embedding the bundled one.
(("^#pyexpat.*") "pyexpat pyexpat.c -lexpat\n"))
;; Suboptimal to delete failing tests here, but if we delete them in
;; the arguments then we need to make sure to strip out that phase
;; when it gets inherited by python and python-minimal.
(for-each delete-file
'("Lib/test/test_compileall.py"
"Lib/test/test_ctypes.py" ; fails on mips64el
@ -130,6 +139,7 @@ (define-public python-2.7
`(#:test-target "test"
#:configure-flags
(list "--enable-shared" ;allow embedding
"--with-system-expat" ;for XML support
"--with-system-ffi" ;build ctypes
"--with-ensurepip=install" ;install pip and setuptools
"--enable-unicode=ucs4"
@ -258,6 +268,7 @@ (define-public python-2.7
#t))))))
(inputs
`(("bzip2" ,bzip2)
("expat" ,expat)
("gdbm" ,gdbm)
("libffi" ,libffi) ; for ctypes
("sqlite" ,sqlite) ; for sqlite extension
@ -311,8 +322,15 @@ (define-public python-3.7
(sha256
(base32
"1fzi9d2gibh0wzwidyckzbywsxcsbckgsl05ryxlifxia77fhgyq"))
(modules '((guix build utils)))
(snippet
'(begin
;; Delete the bundled copy of libexpat.
(delete-file-recursively "Modules/expat")
(substitute* "Modules/Setup.dist"
;; Link Expat instead of embedding the bundled one.
(("^#pyexpat.*") "pyexpat pyexpat.c -lexpat\n"))
(for-each delete-file
'(;; This test may hang and eventually run out of
;; memory on some systems:
@ -379,8 +397,10 @@ (define-public python2-minimal
;; Keep zlib, which is used by 'pip' (via the 'zipimport' module), which
;; is invoked upon 'make install'. 'pip' also expects 'ctypes' and thus
;; libffi.
(inputs `(("libffi" ,libffi)
;; libffi. Expat is needed for XML support which is expected by a lot
;; of libraries out there.
(inputs `(("expat" ,expat)
("libffi" ,libffi)
("zlib" ,zlib)))))
(define-public python-minimal
@ -390,8 +410,10 @@ (define-public python-minimal
;; Build fails due to missing ctypes without libffi.
;; OpenSSL is a mandatory dependency of Python 3.x, for urllib;
;; zlib is required by 'zipimport', used by pip.
(inputs `(("libffi" ,libffi)
;; zlib is required by 'zipimport', used by pip. Expat is needed
;; for XML support, which is generally expected to be available.
(inputs `(("expat" ,expat)
("libffi" ,libffi)
("openssl" ,openssl)
("zlib" ,zlib)))))