libflite missing from AV filter list

[Kev]

When building with --enable-libflite seeing
[AVFilterGraph @ 0x7fb322a047c0] No such filter: 'flite'

At a glance can see &ff_asrc_flite is missing from static const AVFilter * const filter_list[] = {

% ffmpeg -f lavfi -i "flite=textfile=sometexttoread.txt" ... output
ffmpeg version current as of ticket (N-111587-g572979712b) = efa6cec759d7c692808a8cc43d610fe6b9fadfe1

[Kev]

Could get things to build by forcing

#define CONFIG_FLITE_FILTER 1

(!CONFIG_FLITE_FILTER=yes to CONFIG_FLITE_FILTER=yes)

[Kev]

Hey - ok after studying this a little bit more I realised I have a pkgconfig path issue to resolve

But there _is_ still a bug here as I see it

Suggest make this non silent fail when ./configure ... --enable-libflite

|| die if --enable

e.g.

 enabled libflite          && require libflite "flite/flite.h" flite_init $flite_extralibs  || die "ERROR: libflite not found"

Thanks