how to get FILE_VERSION in LaTeX output ?

Hi Doxygen community!

I'd like to see file/lib/git version info in the LaTeX output of doxygen
for our C library code.

I've added a small filter script providing the info string

	FILE_VERSION_FILTER    =3D ../../tools/file_version_for_doxygen.sh

and I can see that info in doxygen console output =


	Version of .../include/bml_api.h : lib-bml-api 4.2.4 0f773c47a

and TeX files
	=

	doc/latex/bml__api_8h.tex:\label{bml__api_8h}\index{bml\_api.h(l
ib-\/bml-\/api 4.2.4 0f773c47a)@{bml\_api.h(lib-\/bml-\/api 4.2.4
0f773c47a)}}
	doc/latex/refman.idx:\indexentry{bml\_api.h(lib-\/bml-\/api
4.2.4 0f773c47a)@{bml\_api.h(lib-\/bml-\/api 4.2.4
0f773c47a)}|hyperpage}{3}


but I cannot find my "version info" in the PDF anywhere:

	$ pdftotext refman.pdf =

	$ grep 0f773c47a refman.txt =

	$


I've tried both doxygen versions 1.9.1 (Ubuntu 20.04 LTS) and 1.8.19 (don't=
 ask:),
both showing the same symptoms...




what am i missing?

thanks for your help!

Harald
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