Build from git broken - missing gperf?

[Gavin Smith]

I can't build from commit 5154587461e (2024-02-04).  It ends with the
errors:

make[2]: Entering directory '/home/g/src/texinfo/GIT/tp/Texinfo/XS/gnulib/lib'
gperf -m 10 ./iconv_open-aix.gperf > ./iconv_open-aix.h-t && \
mv ./iconv_open-aix.h-t ./iconv_open-aix.h
/bin/bash: line 1: gperf: command not found
make[2]: *** [Makefile:3550: iconv_open-aix.h] Error 127
make[2]: Leaving directory '/home/g/src/texinfo/GIT/tp/Texinfo/XS/gnulib/lib'
make[1]: *** [Makefile:2849: all-recursive] Error 1
make[1]: Leaving directory '/home/g/src/texinfo/GIT/tp/Texinfo/XS'
make: *** [Makefile:1970: all] Error 2

It appears that some of the gnulib modules use gperf.  Any idea why this
would have stopped working?