pkg/56114: 2021Q1 gsettings in glib2 refers /var/lib/dbus, not /var/db/dbus

[Izumi Tsutsui <tsutsui%ceres.dti.ne.jp@localhost>]

>Number:         56114
>Category:       pkg
>Synopsis:       2021Q1 gsettings in glib2 refers /var/lib/dbus, not /var/db/dbus
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Apr 17 13:50:00 +0000 2021
>Originator:     Izumi Tsutsui
>Release:        NetBSD 9.1 and pkgsrc-2021Q1
>Organization:
>Environment:
System: NetBSD mirage 9.1 NetBSD 9.1 (GENERIC) #0: Sun Oct 18 19:24:30 UTC 2020 mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/i386/compile/GENERIC i386
Architecture: i386
Machine: i386
>Description:
gsettings from glib2-2.66.8 in pkgsrc-2021Q1 refers /var/lib/dbus:
---
% ktrace gsettings set org.freedesktop.ibus.general.hotkey triggers "[]"
% kdump

[...]

  2828      4 gsettings CALL  __stat50(0x7252743802c0,0x7252707dfca0)
  2828      4 gsettings NAMI  "/home/mikutter/.cache/bus"
  2828      4 gsettings RET   __stat50 -1 errno 2 No such file or directory
  2828      4 gsettings CALL  issetugid
  2828      4 gsettings RET   issetugid 0
  2828      4 gsettings CALL  open(0x72527455353e,0,0)
  2828      4 gsettings NAMI  "/var/lib/dbus/machine-id"
  2828      4 gsettings RET   open -1 errno 2 No such file or directory

---

while dbus in pkgsrc-2021Q1 still refers /var/db/dbus
(changed to refer /var/lib/dbus after 2021Q1 branch):
 http://cvsweb.netbsd.org/bsdweb.cgi/pkgsrc/sysutils/dbus/Makefile#rev1.124
 https://mail-index.netbsd.org/pkgsrc-changes/2021/03/29/msg231497.html
---
dbus: switch from pkgsrc-only var/db/dbus to default var/lib/dbus

This path is what other code, notably glib2, expects.
---

Note gsettings from glib2-2.66.4 in pkgsrc-2020Q4 refers /var/db/dbus:
---
 10776      4 gsettings CALL  __stat50(0xb0c36260,0xb03dfd7c)
 10776      4 gsettings NAMI  "/home/tsutsui/.cache/bus"
 10776      4 gsettings RET   __stat50 -1 errno 2 No such file or directory
 10776      4 gsettings CALL  issetugid
 10776      4 gsettings RET   issetugid 0
 10776      4 gsettings CALL  open(0xb126154a,0,0xb0c380a0)
 10776      4 gsettings NAMI  "/var/db/dbus/machine-id"
 10776      4 gsettings RET   open 10/0xa
 10776      4 gsettings CALL  __fstat50(0xa,0xb03dfc58)
 10776      4 gsettings RET   __fstat50 0
 10776      4 gsettings CALL  read(0xa,0xb0c2cae0,0x21)
 10776      4 gsettings GIO   fd 10 read 33 bytes
--- 

BTW, glib2 was reverted from 2.68.8 to 2.68.0 after 2021Q1 branch??
 https://mail-index.netbsd.org/pkgsrc-changes/2021/03/30/msg231523.html

>How-To-Repeat:
See above.

>Fix:
No idea.
- patch glib2 in pkgsrc-2021Q1 (2.68.8? 2.68.0?) to refer /var/db/dbus?
- pull all /var/db -> /var/lib changes from HEAD to 2021Q1?
 https://mail-index.netbsd.org/pkgsrc-changes/2021/03/29/msg231497.html
 https://mail-index.netbsd.org/pkgsrc-changes/2021/03/30/msg231547.html
 https://mail-index.netbsd.org/pkgsrc-changes/2021/03/30/msg231548.html
 https://mail-index.netbsd.org/pkgsrc-changes/2021/03/30/msg231550.html
 https://mail-index.netbsd.org/pkgsrc-changes/2021/03/30/msg231566.html
 https://mail-index.netbsd.org/pkgsrc-changes/2021/03/30/msg231569.html
 (not sure if these are enough)

---
Izumi Tsutsui