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bug#40283: closed ([WIP PATCH] gnu: flint: Build with ntl.)

From: GNU bug Tracking System
Subject: bug#40283: closed ([WIP PATCH] gnu: flint: Build with ntl.)
Date: Fri, 10 Jul 2020 21:07:02 +0000

Your message dated Fri, 10 Jul 2020 23:06:40 +0200
with message-id <20200710210640.izcxlglsmp6tvse7@gravity>
and subject line Re: [bug#41971] [WIP PATCH 0/5] Add SageMath
has caused the debbugs.gnu.org bug report #40283,
regarding [WIP PATCH] gnu: flint: Build with ntl.
to be marked as done.

(If you believe you have received this mail in error, please contact

40283: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=40283
GNU Bug Tracking System
Contact help-debbugs@gnu.org with problems
--- Begin Message --- Subject: [WIP PATCH] gnu: flint: Build with ntl. Date: Sun, 29 Mar 2020 22:32:24 +0200
* gnu/packages/algebra.scm (flint)[inputs]: Add ntl.
  [arguments]: Pass --with-ntl to configure.
This is required by sagemath, but the patch as written makes the build

 error: invalid conversion from ‘const NTL::Vec<NTL::ZZ>*’ to ‘int’ 
  201 | { VecStrategy<NTL_RELOC_TAG>::do_BlockConstructFromVec(p, n, q); }
      |                               ^~~~~~~~~~~~~~~~~~~~~~~~
      |                               |
      |                               const NTL::Vec<NTL::ZZ>*

Arch Linux seems to be using the same version of ntl and flint, and I
don't see any special workarounds in their PKGBUILDs. I guessed that the
gcc version might be influencing things, but adding gcc-9 to
native-inputs didn't help. Does Guix set up GCC with some non-standard
default flags, maybe?

 gnu/packages/algebra.scm | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/gnu/packages/algebra.scm b/gnu/packages/algebra.scm
index af50c2d775..99b69eba96 100644
--- a/gnu/packages/algebra.scm
+++ b/gnu/packages/algebra.scm
@@ -445,6 +445,8 @@ or text interfaces) or as a C++ library.")
             (patches (search-patches "flint-ldconfig.patch"))))
    (build-system gnu-build-system)
+   (inputs
+    `(("ntl" ,ntl)))
     `(("gmp" ,gmp)
       ("mpfr" ,mpfr))) ; header files from both are included by flint/arith.h
@@ -456,13 +458,15 @@ or text interfaces) or as a C++ library.")
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (let ((out (assoc-ref outputs "out"))
                    (gmp (assoc-ref inputs "gmp"))
-                   (mpfr (assoc-ref inputs "mpfr")))
+                   (mpfr (assoc-ref inputs "mpfr"))
+                   (ntl (assoc-ref inputs "ntl")))
                ;; do not pass "--enable-fast-install", which makes the
                ;; homebrew configure process fail
                (invoke "./configure"
                        (string-append "--prefix=" out)
                        (string-append "--with-gmp=" gmp)
-                       (string-append "--with-mpfr=" mpfr))
+                       (string-append "--with-mpfr=" mpfr)
+                       (string-append "--with-ntl=" ntl))
    (synopsis "Fast library for number theory")

--- End Message ---
--- Begin Message --- Subject: Re: [bug#41971] [WIP PATCH 0/5] Add SageMath Date: Fri, 10 Jul 2020 23:06:40 +0200
On Tue, Jul 07, 2020 at 02:47:28PM +0200, Nicolas Goaziou wrote:
> Hello,
> Jakub Kądziołka <kuba@kadziolka.net> writes:
> > This patchstack builds upon #40283 and packages (some of) SageMath.
> > Currently, sagelib is built successfully, but the `sage' binary is not
> > being installed. I'm submitting this here as I'm no longer actively
> > working on this for now. Some things remain to be done:
> Thanks!
> Would it make sense to add the uncontroversial fourth first patches,
> along with #40283, so it is easier to hack on the sagemath package
> itself?

Sure it would! I just did.

> I'm also Cc'ing Andreas Enge, who showed interest in packaging Sagemath
> a few months ago, and, AFAIK, was close to succeeding.


Jakub Kądziołka

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