What about attached patch on top of previous?
Yes, this works as shown here next:
...
checking dynamic linker characteristics... (cached) GNU/Linux ld.so
checking how to hardcode library paths into programs... immediate
checking for makeinfo... yes
checking for gettext... gettext
checking for libtool... $(SHELL) $(top_builddir)/libtool
checking for python3... no
checking for python... no
configure: error: Please install python/python3
make: *** No targets specified and no makefile found.  Stop.
 
and also makeinfo check works now (tested by renaming it in $PREFIX/bin)
Checking into GIT along with removing "include cstdint" from libzmpeg3.h.