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authorDiego Nicola Barbato <dnbarbato@posteo.de>2020-11-14 15:07:28 -0500
committerMaxim Cournoyer <maxim.cournoyer@gmail.com>2020-11-14 22:11:31 -0500
commit81643c4cf3e61f5a98b92a72a92c230f5e7ca905 (patch)
treefe45814dfa51d62e9ce67761f3519f50d3c0af42 /gnu
parentb070e3f810e672753f85be708788670434f393b7 (diff)
downloadguix-81643c4cf3e61f5a98b92a72a92c230f5e7ca905.tar.gz
guix-81643c4cf3e61f5a98b92a72a92c230f5e7ca905.zip
gnu: python-matplotlib: Fix rounding errors on x86 CPUs.
Fixes <https://issues.guix.gnu.org/40406>. Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>
Diffstat (limited to 'gnu')
-rw-r--r--gnu/packages/python-xyz.scm4
1 files changed, 4 insertions, 0 deletions
diff --git a/gnu/packages/python-xyz.scm b/gnu/packages/python-xyz.scm
index 278b557a0b..f2f812a802 100644
--- a/gnu/packages/python-xyz.scm
+++ b/gnu/packages/python-xyz.scm
@@ -89,6 +89,7 @@
;;; Copyright © 2020 Tim Gesthuizen <tim.gesthuizen@yahoo.de>
;;; Copyright © 2020 Bonface Munyoki Kilyungi <bonfacemunyoki@gmail.com>
;;; Copyright © 2020 Ekaitz Zarraga <ekaitz@elenq.tech>
+;;; Copyright © 2020 Diego N. Barbato <dnbarbato@posteo.de>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -5062,6 +5063,9 @@ convert between colorspaces like sRGB, XYZ, CIEL*a*b*, CIECAM02, CAM02-UCS, etc.
;; has not effect.
(setenv "LD_LIBRARY_PATH" (string-append cairo "/lib"))
(setenv "HOME" (getcwd))
+ ;; Fix rounding errors when using the x87 FPU.
+ (when (string-prefix? "i686" ,(%current-system))
+ (setenv "CFLAGS" "-ffloat-store"))
(call-with-output-file "setup.cfg"
(lambda (port)
(format port "[directories]~%