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96e0c17161
Note that if you build something relying on $SHELL, it may still fail to
build in chroot.
In the chroot we first use "env -i" to clean the environment variables.
When bash starts with no $SHELL set, it *sets* SHELL=(the login shell
of current user specified in /etc/passwd), but it *does not export this
variable*.
For example:
$ cat > t.c << EOF
#include <stdio.h>
#include <stdlib.h>
int main() { puts (getenv ("SHELL") ?: "(nullptr)"); }
$ ./a.out
/bin/zsh/
$ cc t.c
$ env -i bash -c "echo $SHELL"
/bin/zsh
$ env -i bash -c "./a.out"
(nullptr)
We can remove this now only because Mozilla has added a workaround into
their building system at
https://hg.mozilla.org/mozilla-central/rev/5afe7b911f61 for some Mac
builder, inadvertently fixing our issue.
Link: https://lists.linuxfromscratch.org/sympa/arc/blfs-support/2014-11/msg00050.html
Link: https://lists.linuxfromscratch.org/sympa/arc/blfs-dev/2023-11/msg00136.html
27 lines
1.1 KiB
XML
27 lines
1.1 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE note PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../general.ent">
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%general-entities;]>
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<!-- to go inside a NOTE on mozilla packages which need shm
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mounted when configured or similar in chroot.
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Unfortunately, the DTD says an xinclude can only include
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one paragraph.
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We now have exactly one paragraph, git blame this line for
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details. -->
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<para>
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If you are compiling this package in chroot you must
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ensure that <filename>/dev/shm</filename> is mounted. If you do not
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do this, the <application>Python</application> configuration will fail
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with a traceback report referencing
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<filename>/usr/lib/pythonN.N/multiprocessing/synchronize.py</filename>.
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As the &root; user, run:
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<screen role="nodump"><userinput>mountpoint -q /dev/shm || mount -t tmpfs devshm /dev/shm</userinput></screen>
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</para>
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