From 5453969a2a1aa738c2a2a6089b3aa8a83193d44c Mon Sep 17 00:00:00 2001
From: Michael Auchter <a@phire.org>
Date: Wed, 22 Jun 2022 15:24:16 +0000
Subject: [PATCH] hare: set HARECACHE in setupHook

If HARECACHE is unset, it hare will default to attempting to cache files
relative to $HOME, which isn't writable during a build. Set HARECACHE to
a suitable location so packages that are built with hare don't have to
manually handle this.
---
 pkgs/development/compilers/hare/setup-hook.sh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/development/compilers/hare/setup-hook.sh b/pkgs/development/compilers/hare/setup-hook.sh
index d2d2c34354d..999b91df122 100644
--- a/pkgs/development/compilers/hare/setup-hook.sh
+++ b/pkgs/development/compilers/hare/setup-hook.sh
@@ -1,3 +1,5 @@
+export HARECACHE="$NIX_BUILD_TOP/.harecache"
+
 addHarepath () {
     for haredir in third-party stdlib; do
         if [[ -d "$1/src/hare/$haredir" ]]; then