From cee79b773a187664f03a8fa76ee33bc51457ac19 Mon Sep 17 00:00:00 2001
From: John Ericson <John.Ericson@Obsidian.Systems>
Date: Sun, 23 Jun 2024 21:21:31 -0400
Subject: [PATCH] bash: Fix OpenBSD build

See added code comment for details

(cherry picked from commit 97550cd031187e597ec28c9ffd1adce4f7b4afc1)
---
 pkgs/shells/bash/5.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkgs/shells/bash/5.nix b/pkgs/shells/bash/5.nix
index de0426fbcdcd..dee221de7c12 100644
--- a/pkgs/shells/bash/5.nix
+++ b/pkgs/shells/bash/5.nix
@@ -79,6 +79,10 @@ stdenv.mkDerivation rec {
     "bash_cv_job_control_missing=nomissing"
     "bash_cv_sys_named_pipes=nomissing"
     "bash_cv_getcwd_malloc=yes"
+    # This check cannot be performed when cross compiling. The "yes"
+    # default is fine for static linking on Linux (weak symbols?) but
+    # not with OpenBSD, when it does clash with the regular `getenv`.
+    "bash_cv_getenv_redef=${if !(with stdenv.hostPlatform; isStatic && isOpenBSD) then "yes" else "no"}"
   ] ++ lib.optionals stdenv.hostPlatform.isCygwin [
     "--without-libintl-prefix"
     "--without-libiconv-prefix"