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| -rw-r--r-- | gnu/packages/multiprecision.scm | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/gnu/packages/multiprecision.scm b/gnu/packages/multiprecision.scm index 3107bbb979..6fc58ccff1 100644 --- a/gnu/packages/multiprecision.scm +++ b/gnu/packages/multiprecision.scm @@ -5,6 +5,7 @@ ;;; Copyright © 2016 Nicolas Goaziou <mail@nicolasgoaziou.fr> ;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org> ;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr> +;;; Copyright © 2018 Eric Bavier <bavier@member.fsf.org> ;;; ;;; This file is part of GNU Guix. ;;; @@ -25,6 +26,7 @@ #:use-module (guix licenses) #:use-module (gnu packages) #:use-module (gnu packages m4) + #:use-module (gnu packages gcc) #:use-module (guix packages) #:use-module (guix download) #:use-module (guix utils) @@ -157,3 +159,41 @@ are both guaranteed, thanks to interval computation, and accurate, thanks to multiple-precision arithmetic.") (license lgpl2.1+) (home-page "https://perso.ens-lyon.fr/nathalie.revol/software.html"))) + +(define-public qd + (package + (name "qd") + (version "2.3.18") + (source (origin + (method url-fetch) + (uri (string-append "http://crd.lbl.gov/~dhbailey/mpdist/qd-" + version ".tar.gz")) + (sha256 + (base32 + "0vkihcj9fyv2cycq8515713gbs3yskhmivy8bznvx72i6ddnn2c1")))) + (build-system gnu-build-system) + (native-inputs + `(("gfortran" ,gfortran))) + (arguments + `(#:configure-flags `("--disable-enable_fma" ;weird :/ + "--enable-shared" + ,,@(if (string-prefix? "aarch64" + (or (%current-target-system) + (%current-system))) + ;; XXX: The qd_test test fails numerical + ;; accuracy checks for 'dd_real::exp()' on + ;; aarch64 with GCC 5.4 at -O2. Disabling + ;; expensive optimizations lets it pass. + '("CXXFLAGS=-O3 -fno-expensive-optimizations") + '("CXXFLAGS=-O3"))))) + (home-page "http://crd-legacy.lbl.gov/~dhbailey/mpdist/") + (synopsis "Double-double and quad-double library") + (description "This package supports both a double-double +datatype (approx. 32 decimal digits) and a quad-double datatype (approx. 64 +decimal digits). The computational library is written in C++. Both C++ and +Fortran-90 high-level language interfaces are provided to permit one to +convert an existing C++ or Fortran-90 program to use the library with only +minor changes to the source code. In most cases only a few type statements +and (for Fortran-90 programs) read/write statements need to be changed. PSLQ +and numerical quadrature programs are included.") + (license bsd-3))) |