buildroot "make all" fails with: fakeroot error / This may be due to a lack of SYSV IPC support. (and update-alternatives fix does not work)

[kdubious]

• Your Windows build number: (Type ver at a Windows Command Prompt)
  Microsoft Windows [Version 10.0.17763.503]

• What you're doing and what's happening: (Copy&paste the full set of specific command-line steps necessary to reproduce the behavior, and their output. Include screen shots if that helps demonstrate the problem.)
  trying to build an ARM os with:
  :buildroot-2019.02$ make all

• What's wrong / what should be happening instead:
  fails with:
  fakeroot, while creating message channels: Function not implemented This may be due to a lack of SYSV IPC support. fakeroot: error while starting the ``faked' daemon. kill: usage: kill [-s sigspec | -n signum | -sigspec] pid | jobspec ... or kill -l [sigspec] fs/tar/tar.mk:16: recipe for target '/home/kdubious/buildroot/buildroot-2019.02/output/images/rootfs.tar' failed make[1]: *** [/home/kdubious/buildroot/buildroot-2019.02/output/images/rootfs.tar] Error 1 Makefile:84: recipe for target '_all' failed make: *** [_all] Error 2

• Strace of the failing command, if applicable: (If some_command is failing, then run strace -o some_command.strace -f some_command some_args, and link the contents of some_command.strace in a gist here).
  Not sure what should go here.

I saw this solution in several places:
sudo update-alternatives --set fakeroot /usr/bin/fakeroot-tcp

but it did not work for me.

[therealkenc]

#1443 #2465 (ed, and) #3629

[kdubious]

I have a fix:
fs/common.mk:109

Add:
cp -f /`which fakeroot-tcp/` $$(HOST_DIR)/bin/fakeroot

before

PATH=$$(BR_PATH) FAKEROOTDONTTRYCHOWN=1 $$(HOST_DIR)/bin/fakeroot -- $$(FAKEROOT_SCRIPT)

got it from here.

[rc-matthew-l-weber]

The fix is to update the host-fakeroot build to use the tcp transport by default in buildroot. I'm working on upstreaming this fix.

--- a/package/fakeroot/fakeroot.mk
+++ b/package/fakeroot/fakeroot.mk
@@ -16,6 +16,8 @@ HOST_FAKEROOT_CONF_ENV =
ac_cv_header_sys_capability_h=no
ac_cv_func_capset=no

+HOST_FAKEROOT_CONF_OPTS = --with-ipc=tcp
+
FAKEROOT_LICENSE = GPL-3.0+
FAKEROOT_LICENSE_FILES = COPYING

[rc-matthew-l-weber]

Got a bit more background and figuring out right path based on some additional history.

https://bugs.busybox.net/show_bug.cgi?id=11366

Proposed fix
http://patchwork.ozlabs.org/project/buildroot/list/?series=119044