TfLite: adds generate-pc.sh

[drah]

This change adds the generate-pc.sh file for generating the
tensorflowlite.pc that can be used by pkg-config.
This is useful for the platforms that depend on libtensorflowlite.so
instead of the libtensorflow.so.

[yishuangP]

Hi @terryheo, could you also help take a look?

[terryheo]

@drah I'm not familiar with pkg-config. Could you elaborate how it is used?

[drah]

@drah I'm not familiar with pkg-config. Could you elaborate how it is used?

Thanks Terry,

For example,
./generate-pc.sh --version 2.8.0, and there will be a file called tensorflowlite.pc created.
It should be moved to the <path/to/pkgconfig> directory, for example /usr/lib/pkgconfig

And then we can run pkg-config like:
PKG_CONFIG_PATH=<path/to/pkgconfig> pkg-config tensorflowlite --libs --cflags
This will give something like
-I/usr/include/tensorflow -ltensorflowlite

[afq984]

my 2c: I think we should reuse https://github.com/tensorflow/tensorflow/blob/master/tensorflow/c/generate-pc.sh instead of duplicating the shell code a separate file in lite/ (thesorflow_cc is not in the cc directory either)

[drah]

Thanks afq984 for the comment.
I think it's for c version tensorflow. This one should be for tensorflowlite only.

[terryheo]

It's TF description. For TFLite, let's use this.
"Library for deploying models on mobile, microcontrollers and other edge devices."

[terryheo]

LGTM