"Some files are gone in the process" build failure(s) — clang 9.0.1

PackageVersionSupposed error messageFull log Bug report
boinc-app-seti 8.00~svn4035-1checking if g++ supports -c -o file.o... /bin/rm: cannot remove 'conftest*': No such file or directory Log
cxref 1.6e-3mv: cannot stat 'README.c.tex': No such file or directory Log
flang 20190329-5clang: error: unable to execute command: No such file or directory Log
kst 2.0.8-3clang: error: no such file or directory: '/Yc/<>/obj-x86_64-linux-gnu/src/libkst/kstcore_pch.h' Log
libboost-geometry-utils-perl 0.15-2Can't exec "clang++": No such file or directory at /usr/share/perl/5.30/ExtUtils/CBuilder/Base.pm line 342. Log
libdeflate 1.5-3: Could not read profile default.profdata: No such file or directory Log
libmath-clipper-perl 1.29-1Can't exec "clang++": No such file or directory at /usr/share/perl/5.30/ExtUtils/CBuilder/Base.pm line 342. Log
libselinux 3.0-1clang: error: no such file or directory: 'temp.aux' Log
libsemanage 3.0-1clang: error: no such file or directory: 'temp.aux' Log
libsrtp2 2.3.0-2./rtpw: error while loading shared libraries: libsrtp2.so.1: cannot open shared object file: No such file or directory Log
ncl 6.6.2-1clang: error: no such file or directory: '1' Log
perl 5.30.0-9Can't open gnu/stubs-x32.h: No such file or directory Log
slic3r 1.3.0+dfsg1-3Can't exec "clang++": No such file or directory at /usr/share/perl/5.30/ExtUtils/CBuilder/Base.pm line 342. Log

13 errors