Comment # 2 on bug 1074012 from Michael Karbach

Same problem for me for a fresh installed OS-15.0. Actually there is no ls-R:

wptnb8:mk/topics> pdflatex Function_theta.tex
warning: kpathsea: /etc/texmf/ls-R: No usable entries in ls-R.
warning: kpathsea: See the manual for how to generate ls-R.
warning: kpathsea: /var/lib/texmf/ls-R: No usable entries in ls-R.
warning: kpathsea: See the manual for how to generate ls-R.
warning: kpathsea: /usr/share/texmf/ls-R: No usable entries in ls-R.
warning: kpathsea: See the manual for how to generate ls-R.
warning: kpathsea: /var/cache/texmf/fonts/ls-R: No usable entries in ls-R.
warning: kpathsea: See the manual for how to generate ls-R.
This is pdfTeX, Version 3.14159265-2.6-1.40.18 (TeX Live 2017/TeX Live for SUSE
Linux) (preloaded format=pdflatex)
 restricted \write18 enabled.


And creating ls-r via 

su-wptnb8 /etc/sysconfig: texhash
public: texhash: Success

does nothing.