From f84997cbefb2f2dd99e48f0ad39f747ed83d69e9 Mon Sep 17 00:00:00 2001
From: Alois Wohlschlager <alois1@gmx-topmail.de>
Date: Tue, 6 Aug 2024 17:13:06 +0200
Subject: [PATCH] package: don't hide system-wide manual pages

When MANPATH is unset or contains an empty component, a reasonable default is
used. Previously (after 3dced96741816db01f9990e0884224d38ee58390), when MANPATH
was unset, the shell hook would only place a location containing the Lix manual
pages there, and system-wide manual pages would become unavailable in the
development shell, which is undesired. Fix the issue by including an empty
component in this case.

Change-Id: Ib3c67a831d709fe2a87520e15917eebb59397bd1
---
 package.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.nix b/package.nix
index 7ebe2721b..0f006fef4 100644
--- a/package.nix
+++ b/package.nix
@@ -502,7 +502,7 @@ stdenv.mkDerivation (finalAttrs: {
 
               PATH=$prefix/bin''${PATH:+:''${PATH}}
               unset PYTHONPATH
-              export MANPATH=$out/share/man''${MANPATH:+:''${MANPATH}}
+              export MANPATH=$out/share/man:''${MANPATH:-}
 
               # Make bash completion work.
               XDG_DATA_DIRS+=:$out/share