From ee3f56915e0f4ba9d23384e84122d6009ee80481 Mon Sep 17 00:00:00 2001
From: Nicolas Goaziou <mail@nicolasgoaziou.fr>
Date: Sun, 19 Dec 2021 21:11:17 +0100
Subject: gnu: wslay: Fix build.

* gnu/packages/web.scm (wslay)[argument]<#:phases>: Add phase to fix Sphinx
error.

Fixes <https://issues.guix.gnu.org/52661>.
---
 gnu/packages/web.scm | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'gnu/packages')

diff --git a/gnu/packages/web.scm b/gnu/packages/web.scm
index fff7e48ba3..9442b65439 100644
--- a/gnu/packages/web.scm
+++ b/gnu/packages/web.scm
@@ -1537,7 +1537,15 @@ high performance.")
     (build-system gnu-build-system)
     (arguments
      ;; Parallel builds don't reliably succeed.
-     `(#:parallel-build? #f))
+     `(#:parallel-build? #f
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'fix-sphinx-error
+           ;; XXX: Remove in next version: fix applied upstream.  See
+           ;; <https://github.com/tatsuhiro-t/wslay/commit/43fda1207ea5977043630500e0c8e77b98b35320>.
+           (lambda _
+             (substitute* "doc/sphinx/conf.py.in"
+               (("add_stylesheet") "add_css_file")))))))
     (native-inputs
      (list autoconf
            automake
-- 
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