[bug#45774] [PATCH core-updates v3 1/2] utils: Retrieve the store prefix from NIX_STORE_DIR, not STORE_DIR.

[Maxim Cournoyer]

On the daemon side, nixStore gets set to the environment variable
NIX_STORE_DIR, else the environment variable NIX_STORE else the compile time
macro NIX_STORE_DIR (see the Settings::processEnvironment method in
nix/libstore/globals.cc).  Hence, it is more appropriate to lookup the
environment variable NIX_STORE_DIR than NIX_STORE in (guix build utils).

* guix/build/utils.scm (%store-directory): Call getenv with NIX_STORE_DIR
instead of NIX_STORE.
---
 guix/build/utils.scm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/guix/build/utils.scm b/guix/build/utils.scm
index 76180e67e0..2cbdb31505 100644
--- a/guix/build/utils.scm
+++ b/guix/build/utils.scm
@@ -144,7 +144,7 @@
 
 (define (%store-directory)
   "Return the directory name of the store."
-  (or (getenv "NIX_STORE")
+  (or (getenv "NIX_STORE_DIR")
       "/gnu/store"))
 
 (define (store-file-name? file)
-- 
2.29.2