I didn’t put these work into github.
I will add them in future.
I have some suggestions about building these libs
1) libpng libjpeg libtiff
These libs doesn’t depend on other libs, so you can build them with NDK tools. Just add a Android.mk for it, and some other codes(may be one main.cpp) to use it.
It is not needed. I will remove it.
I build it from android source code. Because it depends some other libs, so i didn’t find a way to build it with NDK.
I have a repo for it https://github.com/minggo/libcurl-build.
I use android source code to run configure command to generate corresponding header files.
In the repo, there are two branches, one support ssl, the other doesn’t support ssl.
I have added Android.mk to generate libcurl.a in curl/jni.