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* [bug#38128] [PATCH] gnu: Add boost-with-python3
@ 2019-11-08 10:59 goodoldpaul
  2019-11-10 21:50 ` bug#38128: " Marius Bakke
  0 siblings, 1 reply; 8+ messages in thread
From: goodoldpaul @ 2019-11-08 10:59 UTC (permalink / raw)
  To: 38128

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Hello Guixers!

Given the recent discussion about dropping python 2 completely I thought 
it's time to build our libboost against python 3. I didn't have the time 
to check if every boost dependency (there are a lot ;) ) supported 
python 3, so I added a new variable "boost-with-python3". I'm not sure 
if I should have made it hidden or if I should have update directly 
boost definition so any feedback is welcome.

Thanks for your patience reviewing this patch,

Giacomo

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From 6eef72ea2bc904ff1371fbbe1211a3890625d99c Mon Sep 17 00:00:00 2001
From: Giacomo Leidi <goodoldpaul@autistici.org>
Date: Fri, 8 Nov 2019 11:52:42 +0100
Subject: [PATCH] gnu: Add boost-with-python3.

* gnu/packages/boost.scm (boost-with-python3): New variable.
---
 gnu/packages/boost.scm | 55 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)

diff --git a/gnu/packages/boost.scm b/gnu/packages/boost.scm
index a2253a9efc..4007c34993 100644
--- a/gnu/packages/boost.scm
+++ b/gnu/packages/boost.scm
@@ -10,6 +10,7 @@
 ;;; Copyright © 2018, 2019 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2018 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2018 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2019 Giacomo Leidi <goodoldpaul@autistici.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -128,6 +129,60 @@ across a broad spectrum of applications.")
     (license (license:x11-style "https://www.boost.org/LICENSE_1_0.txt"
                                 "Some components have other similar licences."))))
 
+(define-public boost-with-python3
+  (package
+    (inherit boost)
+    (source (origin
+              (inherit (package-source boost))))
+    (native-inputs
+     `(("perl" ,perl)
+       ("python" ,python)
+       ("tcsh" ,tcsh)))
+    (arguments (substitute-keyword-arguments (package-arguments boost)
+                 ((#:phases phases)
+                  `(modify-phases ,phases
+                     (replace 'configure
+                       (lambda* (#:key inputs outputs #:allow-other-keys)
+                         (let ((icu (assoc-ref inputs "icu4c"))
+                               (python (assoc-ref inputs "python"))
+                               (out (assoc-ref outputs "out")))
+                           (substitute* '("libs/config/configure"
+                                          "libs/spirit/classic/phoenix/test/runtest.sh"
+                                          "tools/build/src/engine/execunix.c"
+                                          "tools/build/src/engine/Jambase"
+                                          "tools/build/src/engine/jambase.c")
+                             (("/bin/sh") (which "sh")))
+
+                           (setenv "SHELL" (which "sh"))
+                           (setenv "CONFIG_SHELL" (which "sh"))
+
+                           (substitute* "tools/build/src/tools/python.jam"
+                             (("include/python\\$\\(version\\)")
+                              "include/python$(version)m"))
+
+                           (invoke "./bootstrap.sh"
+                                   (string-append "--prefix=" out)
+                                   ;; Auto-detection looks for dependencies only
+                                   ;; in traditional install locations.
+                                   (string-append "--with-icu=" icu)
+                                   (string-append "--with-python=" python "/bin/python3")
+                                   (string-append "--with-python-root=" python)
+                                   "--with-python-version=3.7"
+                                   "--with-toolset=gcc"))))
+                     (replace 'provide-libboost_python
+                       (lambda* (#:key outputs #:allow-other-keys)
+                         (let ((out (assoc-ref outputs "out")))
+                           (with-directory-excursion (string-append out "/lib")
+                             ;; Boost can build support for both Python 2 and Python 3 since
+                             ;; version 1.67.0, and suffixes each library with the Python
+                             ;; version.  Many consumers only check for libboost_python
+                             ;; however, so we provide it here as suggested in
+                             ;; <https://github.com/boostorg/python/issues/203>.
+                             (symlink "libboost_python37.so" "libboost_python.so")
+                             ;; Some packages also look for libboost_python3.so
+                             (symlink "libboost_python37.so" "libboost_python3.so"))
+                           #t)))))))))
+
 (define-public boost-for-mysql
   ;; Older version for MySQL 5.7.23.
   (package
-- 
2.24.0


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Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-11-08 10:59 [bug#38128] [PATCH] gnu: Add boost-with-python3 goodoldpaul
2019-11-10 21:50 ` bug#38128: " Marius Bakke
2019-11-11  9:36   ` [bug#38128] " Efraim Flashner
2019-11-12  0:06     ` goodoldpaul
2019-11-16  9:04       ` [bug#38228] Fwd: [PATCH] gnu: boost: Build with python3 goodoldpaul
2019-11-20  0:01         ` Marius Bakke
2019-12-09 11:24           ` goodoldpaul
2020-01-08 21:11             ` bug#38228: " Marius Bakke

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