[LTP] [PATCH] configure: Fix summary for --disable-metadata

[Petr Vorel]

Hi Cyril,

> This changes the m4/ltp-docparse.m4 to skip the detection and sets the
> corresponding variables so that we get correct summary when the metadata
> are disable by users.

Reviewed-by: Petr Vorel <pvorel@suse.cz>

LGTM, I'm for applying this before release.

./configure --disable-metadata-pdf --disable-metadata-html
...
configure: metadata generation disabled
...
METADATA
metadata generator: detect
HTML metadata: no
PDF metadata: no

=> this case is not handled well. Output during configure ("metadata generation
disabled") is IMHO more descriptive than our summary - "detect" can be confusing
for people. We could further tweak configure.ac:

@@ -43,6 +43,9 @@ fi

 if test "x$enable_metadata_html" = xyes -o "x$enable_metadata_pdf" = xyes; then
        AX_PROG_PERL_MODULES(Cwd File::Basename JSON LWP::Simple)
+else
+       with_metadata=no
+       with_metadata_generator=none
 fi

---
=> would lead to:
METADATA
metadata generator: none
HTML metadata: no
PDF metadata: no

But instead of that I'd also adjusted the summary to print "metadata disabled"
to reflect the reality, i.e. apply also my patch
https://lore.kernel.org/ltp/20220114125513.895-1-pvorel@suse.cz/

Kind regards,
Petr