From 0f13cccb95523a0dacb58c47aeac2c1d86af75f8 Mon Sep 17 00:00:00 2001
From: Robert Hensing <robert@roberthensing.nl>
Date: Wed, 11 Nov 2020 16:26:06 +0100
Subject: [PATCH] setup.sh: Support XDG_DATA_DIRS

XDG_DATA_DIRS is to /share as PATH is to /bin.

It was defined as part of the XDG basedir specification.
https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html

While it originated from the X Desktop Group, it is not limited to
the X11 ecosystem, as evidenced by its use in bash-completion.

The removal of ` && -d "$pkg/bin"` is ok, because this optimization is
already performed by `addToSearchPath`.
---
 pkgs/stdenv/generic/setup.sh | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/pkgs/stdenv/generic/setup.sh b/pkgs/stdenv/generic/setup.sh
index 2617a8f74ab5..34405b048ecb 100644
--- a/pkgs/stdenv/generic/setup.sh
+++ b/pkgs/stdenv/generic/setup.sh
@@ -483,8 +483,9 @@ activatePackage() {
     # the transition, we do include everything in thatcase.
     #
     # TODO(@Ericson2314): Don't special-case native compilation
-    if [[ ( -z "${strictDeps-}" ||  "$hostOffset" -le -1 ) && -d "$pkg/bin" ]]; then
+    if [[ -z "${strictDeps-}" || "$hostOffset" -le -1 ]]; then
         addToSearchPath _PATH "$pkg/bin"
+        addToSearchPath _XDG_DATA_DIRS "$pkg/share"
     fi
 
     if [[ "$hostOffset" -eq 0 && -d "$pkg/bin" ]]; then
@@ -602,13 +603,16 @@ fi
 
 PATH="${_PATH-}${_PATH:+${PATH:+:}}$PATH"
 HOST_PATH="${_HOST_PATH-}${_HOST_PATH:+${HOST_PATH:+:}}$HOST_PATH"
+XDG_DATA_DIRS="${_XDG_DATA_DIRS-}${_XDG_DATA_DIRS:+${XDG_DATA_DIRS:+:}}${XDG_DATA_DIRS-}"
 if (( "${NIX_DEBUG:-0}" >= 1 )); then
     echo "final path: $PATH"
     echo "final host path: $HOST_PATH"
+    echo "final data dirs: $XDG_DATA_DIRS"
 fi
 
 unset _PATH
 unset _HOST_PATH
+unset _XDG_DATA_DIRS
 
 
 # Make GNU Make produce nested output.