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From: Foo Chuan Wei <chuanwei.foo@hotmail.com>
To: guix-devel@gnu.org
Subject: Why does sh in the build environment ignore SIGINT and SIGQUIT?
Date: Sun, 22 May 2022 08:00:15 +0000	[thread overview]
Message-ID: <PU1PR01MB2155A56B7FD179919DDB37C18DD59@PU1PR01MB2155.apcprd01.prod.exchangelabs.com> (raw)

The shell in the environment where packages are built ignores SIGINT and
SIGQUIT. If I add `(invoke "sh" "-c" "trap")` to a custom build phase,
this output is produced during the build:

    trap -- '' INT
    trap -- '' QUIT

Why does the shell in the build environment need to ignore these two
signals?

For context, this affects the build of the smlnj package
(gnu/packages/sml.scm). The resulting executable seems to inherit the
signal dispositions of the shell where the executable is built, with the
result that CTRL-C is ignored at the sml REPL.


             reply	other threads:[~2022-05-22  8:23 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-22  8:00 Foo Chuan Wei [this message]
2022-05-22 14:14 ` Why does sh in the build environment ignore SIGINT and SIGQUIT? Ryan Prior
2022-05-23  3:14   ` Foo Chuan Wei
2022-05-24  6:25     ` Foo Chuan Wei
2022-05-24 23:28       ` Kaelyn
2022-05-30 15:20 ` Ludovic Courtès

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