glibc and ldconfig dependency loop

[Jacek Konieczny]

>From my logs of (automated) building a fresh system in a chroot:



build	01-Oct-2018 09:25:17	warning: LOOP:
build	01-Oct-2018 09:25:17	warning: removing glibc-2.28-5.aos1.i686
"Requires(postun): /sbin/ldconfig" from tsort relations.
build	01-Oct-2018 09:25:17	warning: removing ldconfig-2.28-5.aos1.i686
"Requires(auto): rtld(GNU_HASH)" from tsort relations.
[...]
build	01-Oct-2018 09:25:19	glibc
##################################################
build	01-Oct-2018 09:25:19	/sbin/ldconfig: No such file or directory
build	01-Oct-2018 09:25:19	error: %post(glibc-2.28-5.aos1.i686)
scriptlet failed, exit status 127
build	01-Oct-2018 09:25:19	ldconfig
##################################################

This causes whole poldek install command to fail.

Such loops make chroot installs or major updates unpredictable and when
glibc is installed before ldconfig, then its %post will fail. What is
worse, such loops can break installation order or other packages
installed in the batch.

Possible solutions:
– disable autogenerated dependency for ldconfig, to force installing it
before glibc
– include ldconfig in the main glibc package
– change glibc %post so it won't fail on ldconfig error. The easiest
one, will fix the glibc installation failure, but won't break the
dependency loop.

Any better ideas?

Jacek