From: Mark Wooding <mdw@distorted.org.uk>
Date: Mon, 17 Jun 2024 17:27:40 +0000 (+0100)
Subject: dot/lisp-init.lisp: Don't set SBCL source directory if there's no source there.
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/profile/commitdiff_plain/77a15cda3eb6846cbcc535f60f19f5e0a0051508?ds=inline

dot/lisp-init.lisp: Don't set SBCL source directory if there's no source there.
---

diff --git a/dot/lisp-init.lisp b/dot/lisp-init.lisp
index 64faf2b..91971ca 100644
--- a/dot/lisp-init.lisp
+++ b/dot/lisp-init.lisp
@@ -48,7 +48,9 @@ (setf ccl:*quit-on-eof* t)
 
 ;; Tell SBCL where to find its source source.
 #+sbcl
-(sb-ext:set-sbcl-source-location #p"/usr/share/sbcl-source/")
+(let ((srcdir #p"/usr/share/sbcl-source/"))
+  (when (probe-file srcdir)
+    (sb-ext:set-sbcl-source-location srcdir)))
 
 ;; Get SBCL to shut up about package variance.  This is a standard result of
 ;; my approach to symbol exports, and I don't care.