Something looking like autotools is capturing SHELL for use at runtime, which should probably be fixed to /bin/sh anyway. . Autotools also capturing the build path.
eg. %%CreationDate (or DVIPSSource?) in header . https://sources.debian.net/src/texlive-bin/latest/texk/web2c/pdftexdir/pdftex.web/#L14449 . DVIPSSource date Can be set to SOURCE_DATE_EPOCH by setting FORCE_SOURCE_DATE to 1.
The Erlang documentation generator EDoc is embedding timestamps in its documentation.
Our notes about issues affecting packages are stored in notes.git and are targeted at packages in Debian in 'unstable/amd64' (unless they say otherwise).