Subject: [PATCH 1/4] gnu: racket: Fix lib-search-dirs configuration.

From: Philip McGrath <[email-masked]>
Date: Tue, 29 Jun 2021 17:57:39 -0400

When a config.rktd file doesn't contain an entry for `lib-search-dirs`,
the default is equivalent to `'(#f)`, not `'()`.

* gnu/packages/racket.scm (racket)[#:arguments]: Fix
patch-config.rktd-lib-search-dirs phase.
---
 gnu/packages/racket.scm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gnu/packages/racket.scm b/gnu/packages/racket.scm
index 2d606071fe..d0cfed7292 100644
--- a/gnu/packages/racket.scm
+++ b/gnu/packages/racket.scm
@@ -125,7 +125,7 @@
                                   'lib-search-dirs
                                   (lambda (dirs)
                                     (append dirs extra-lib-search-dirs))
-                                  null)
+                                  '(#f))
                                  #:exists 'truncate/replace
                                  file)))
                     "--"
-- 
2.30.2