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07/09: gnu: python: Do not record configure flags.


From: Ludovic Courtès
Subject: 07/09: gnu: python: Do not record configure flags.
Date: Sun, 29 Nov 2015 22:01:56 +0000

civodul pushed a commit to branch master
in repository guix.

commit 5b4e2791ef898a5fd43388b8020377b5d7bda771
Author: Ludovic Courtès <address@hidden>
Date:   Sun Nov 15 17:51:12 2015 +0100

    gnu: python: Do not record configure flags.
    
    This reduces the number of run-time dependencies of python-2 from 25 to
    15, corresponding only to ~4 MiB.
    
    * gnu/packages/python.scm (python-2)[arguments]: Add
      'do-not-record-configure-flags' phase.
---
 gnu/packages/python.scm |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/gnu/packages/python.scm b/gnu/packages/python.scm
index fd3e6b3..6cae132 100644
--- a/gnu/packages/python.scm
+++ b/gnu/packages/python.scm
@@ -167,6 +167,22 @@
              ;; gnu-build-system.scm.
              (setenv "SOURCE_DATE_EPOCH" "1")
              #t))
+          (add-before 'configure 'do-not-record-configure-flags
+            (lambda* (#:key configure-flags #:allow-other-keys)
+              ;; Remove configure flags from the installed '_sysconfigdata.py'
+              ;; and 'Makefile' so we don't end up keeping references to the
+              ;; build tools.
+              ;;
+              ;; Preserve at least '--with-system-ffi' since otherwise the
+              ;; thing tries to build libffi, fails, and we end up with a
+              ;; Python that lacks ctypes.
+              (substitute* "configure"
+                (("^CONFIG_ARGS=.*$")
+                 (format #f "CONFIG_ARGS='~a'\n"
+                         (if (member "--with-system-ffi" configure-flags)
+                             "--with-system-ffi"
+                             ""))))
+              #t))
           (add-before
            'check 'pre-check
            (lambda _



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