From 9bff543aefa274a7a2362802c9c78e1b672d5ce3 Mon Sep 17 00:00:00 2001
From: Teddy Wing
Date: Thu, 25 Aug 2022 21:35:31 +0200
Subject: option.lisp: Define version string at compile time

Otherwise we get a runtime error when running the binary on a different
machine than the one that built it:

    $ extreload -V
    error: Failed to find the WRITE-DATE of
    /private/tmp/extreload-20220825-3720-17mi6k3/extreload_0.0.2/bundle/local-projects/:

             No such file or directory
---
 src/option.lisp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/option.lisp b/src/option.lisp
index 2a4721f..5848a8d 100644
--- a/src/option.lisp
+++ b/src/option.lisp
@@ -60,6 +60,8 @@ with code `exit-code`."
 `condition` and exits with EX_USAGE."
   (exit-with-error condition sysexits:+usage+))
 
+(defconstant *version* (asdf:component-version (asdf:find-system :extreload)))
+
 (defun parse-options ()
   "Parse command line options."
   (multiple-value-bind (options free-args)
@@ -79,7 +81,7 @@ with code `exit-code`."
       (opts:exit sysexits:+usage+))
 
     (when-option (options :version)
-      (format t "~a~%" (asdf:component-version (asdf:find-system :extreload)))
+      (format t "~a~%" *version*)
 
       (opts:exit sysexits:+ok+))
 
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