From 2aa37af32d1bd308cbc7f0be44a6a63f31dd13d0 Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyich@gmail.com>
Date: Sun, 7 Nov 2021 12:14:04 +0000
Subject: [PATCH] clisp: explicitly disable build parallelism due to missing
 depends

---
 pkgs/development/interpreters/clisp/default.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkgs/development/interpreters/clisp/default.nix b/pkgs/development/interpreters/clisp/default.nix
index 566d16179b57..137ebbccbc71 100644
--- a/pkgs/development/interpreters/clisp/default.nix
+++ b/pkgs/development/interpreters/clisp/default.nix
@@ -82,6 +82,10 @@ stdenv.mkDerivation rec {
     cd builddir
   '';
 
+  # Fails to build in parallel due to missing gnulib header dependency used in charstrg.d:
+  #   ../src/charstrg.d:319:10: fatal error: uniwidth.h: No such file or directory
+  enableParallelBuilding = false;
+
   postInstall =
     lib.optionalString (withModules != [])
       (''./clisp-link add "$out"/lib/clisp*/base "$(dirname "$out"/lib/clisp*/base)"/full''