GNU bug report logs - #19742
'wrap-program' should really preserve argv[0]

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: ludo <at> gnu.org (Ludovic Courtès)
Subject: bug#19742: closed (Close)
Date: Mon, 16 Feb 2015 14:27:03 +0000

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Your bug report

#19742: 'wrap-program' should really preserve argv[0]

which was filed against the guix package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 19742 <at> debbugs.gnu.org.

-- 
19742: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=19742
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Andreas Enge <andreas <at> enge.fr>
To: 19742-done <at> debbugs.gnu.org
Subject: Close
Date: Mon, 16 Feb 2015 15:26:28 +0100

Applied in commit b01f89675d03202851a00c38d4995424bbb1879f.

Andreas

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From: ludo <at> gnu.org (Ludovic Courtès)
To: bug-guix <at> gnu.org
Subject: 'wrap-program' should really preserve argv[0]
Date: Sun, 01 Feb 2015 22:39:53 +0100

[Message part 4 (text/plain, inline)]

It should be enough, and more appropriate, to simply preserve argv[0] in
wrappers.

Ludo’.

[Message part 5 (text/x-patch, inline)]

diff --git a/guix/build/utils.scm b/guix/build/utils.scm
index 4407f9a..ebe70a3 100644
--- a/guix/build/utils.scm
+++ b/guix/build/utils.scm
@@ -870,8 +870,7 @@ the previous wrapper."
     (with-output-to-file prog-tmp
       (lambda ()
         (format #t
-                "#!~a~%~a~%exec -a \"~a\" \"~a\" \"$@\"~%"
-                (which "bash")
+                "#!~a~%~a~%exec -a \"$0\" \"~a\" \"$@\"~%"
                 (string-join (map export-variable vars)
                              "\n")
                 (canonicalize-path prog)

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