pkg/58853: audio/lv2: env: python3: No such file or directory

[rwhitlock22%gmail.com@localhost]

>Number:         58853
>Category:       pkg
>Synopsis:       audio/lv2: env: python3: No such file or directory
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Nov 25 02:55:00 +0000 2024
>Originator:     Robert Whitlock
>Release:        pkgsrc current, Fri Nov 22, 2024
>Organization:
>Environment:
NetBSD current, Nov 9, 2024
amd64
>Description:
Building audio/lv2 with the doc option fails due to a python script with a #! interpreter line using python3, which my system does not have installed, although it does have python 3.12.

=> Bootstrap dependency digest>=20211023: found digest-20220214
===> Skipping vulnerability checks.
WARNING: No /usr/pkg/pkgdb/pkg-vulnerabilities file found.
WARNING: To fix run: `/usr/sbin/pkg_admin -K /usr/pkg/pkgdb fetch-pkg-vulnerabilities'.
===> Building for lv2-1.18.10nb8
ninja: Entering directory `output'
[1/33] Generating plugins/book.txt with a custom command
FAILED: plugins/book.txt 
/usr/pkgsrc/audio/lv2/work/lv2-1.18.10/plugins/literasc.py plugins/book.txt ../plugins/README.txt ../plugins/eg-amp.lv2/README.txt ../plugins/eg-amp.lv2/amp.c ../plugins/eg-amp.lv2/amp.ttl ../plugins/eg-fifths.lv2/README.txt ../plugins/eg-fifths.lv2/fifths.c ../plugins/eg-fifths.lv2/fifths.ttl ../plugins/eg-fifths.lv2/uris.h ../plugins/eg-metro.lv2/README.txt ../plugins/eg-metro.lv2/metro.c ../plugins/eg-metro.lv2/metro.ttl ../plugins/eg-midigate.lv2/README.txt ../plugins/eg-midigate.lv2/midigate.c ../plugins/eg-midigate.lv2/midigate.ttl ../plugins/eg-params.lv2/README.txt ../plugins/eg-params.lv2/params.c ../plugins/eg-params.lv2/params.ttl ../plugins/eg-params.lv2/state_map.h ../plugins/eg-sampler.lv2/README.txt ../plugins/eg-sampler.lv2/atom_sink.h ../plugins/eg-sampler.lv2/peaks.h ../plugins/eg-sampler.lv2/sampler.c ../plugins/eg-sampler.lv2/sampler.ttl ../plugins/eg-sampler.lv2/sampler_ui.c ../plugins/eg-sampler.lv2/uris.h ../plugins/eg-scope.lv2/README.txt ../plugins/eg-scope.l
 v2/examploscope.c ../plugins/eg-scope.lv2/examploscope_ui.c ../plugins/eg-scope.lv2/uris.h
env: python3: No such file or directory
ninja: build stopped: subcommand failed.
*** Error code 1

Stop.
make[1]: stopped making "install" in /usr/pkgsrc/audio/lv2
*** Error code 1

Stop.
make: stopped making "install" in /usr/pkgsrc/audio/lv2

>How-To-Repeat:
enable the doc option for audio/lv2
cd audio/lv2
make install
>Fix: