undefined reference to aligned_alloc when DARKNET_NNPACK=ON

[baynaa7]

Hello, I am trying to run darknet-nnpack on android (aarch64-v8a). However, I receive compiler error:

darknet-nnpack/src/convolutional_layer.c:(.text.forward_convolutional_layer_nnpack+0xfc): undefined reference to `aligned_alloc'
clang38: error: linker command failed with exit code 1 (use -v to see invocation)

I am using aarch64-linux-android-clang and aarch64-linux-android-clang++
I added android-ndk directory that contains cstdlib and added header "include in convolution_layer.c, then it also shows error.

How did you compile the repo with DARKNET_NNPACK=ON ?
thank you.