Cannot build AVM dependency with CONFIG_ML_PART_SPLIT=1

[y-guyon]

Removing the following line:

libavif/cmake/Modules/LocalAom.cmake

Line 102 in 1c592c8

set(CONFIG_ML_PART_SPLIT 0 CACHE INTERNAL "")

leads to the following error:

libavif/build/_deps/libaom-src/third_party/tensorflow/tensorflow/lite/schema/schema_generated.h:21:10: fatal error: flatbuffers/flatbuffers.h: No such file or directory

when using the following build command lines at head:

cmake -S . -B build -DBUILD_SHARED_LIBS=OFF -DAVIF_CODEC_AVM=LOCAL \
  -DAVIF_LIBYUV=LOCAL -DAVIF_LIBSHARPYUV=LOCAL -DAVIF_JPEG=LOCAL \
  -DAVIF_ZLIBPNG=LOCAL -DAVIF_BUILD_APPS=ON \
  -DCMAKE_C_FLAGS_RELEASE="-static" -DCMAKE_EXE_LINKER_FLAGS="-static"
# Prints "Building TFLite from local sources..."
cmake --build build --parallel

---

Doing the following prior to the build command lines above:

cd ext
./avm.sh

gives the following error:

/usr/bin/ld: cannot find -l_aom_dep_lib_avm-NOTFOUND: No such file or directory