source: xincludes/mozshm.xml@ 0fd23702

12.1 ken/TL2024 ken/tuningfonts lazarus plabs/newcss python3.11 rahul/power-profiles-daemon renodr/vulkan-addition trunk xry111/llvm18
Last change on this file since 0fd23702 was 96e0c171, checked in by Xi Ruoyao <xry111@…>, 8 months ago

mozilla: Drop SHELL=/bin/bash

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
  • Property mode set to 100644
File size: 1.1 KB
RevLine 
[5b0a978e]1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE note PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
[96e0c171]3 "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4 <!ENTITY % general-entities SYSTEM "../general.ent">
5 %general-entities;]>
[5b0a978e]6
7
8 <!-- to go inside a NOTE on mozilla packages which need shm
9 mounted when configured or similar in chroot.
10 Unfortunately, the DTD says an xinclude can only include
[96e0c171]11 one paragraph.
12
13 We now have exactly one paragraph, git blame this line for
14 details. -->
[5b0a978e]15
16 <para>
[96e0c171]17 If you are compiling this package in chroot you must
[5b0a978e]18 ensure that <filename>/dev/shm</filename> is mounted. If you do not
[cf31c27]19 do this, the <application>Python</application> configuration will fail
[5b0a978e]20 with a traceback report referencing
21 <filename>/usr/lib/pythonN.N/multiprocessing/synchronize.py</filename>.
[96e0c171]22 As the &root; user, run:
[5b0a978e]23
[e712213]24<screen role="nodump"><userinput>mountpoint -q /dev/shm || mount -t tmpfs devshm /dev/shm</userinput></screen>
[5b0a978e]25
26 </para>
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