Usage:
1. Install android ndk
2. Download tarball:
cairo-1.17.2.tar.xz
freetype-2.10.2.tar.xz
gettext-0.21.tar.gz
glib-2.56.4.tar.xz
harfbuzz-2.7.2.tar.xz
icu4c-67_1-src.tgz
libffi-3.3.tar.gz
libiconv-1.16.tar.gz
libpng-1.6.37.tar.xz
pcre-8.44.tar.bz2
pixman-0.40.0.tar.gz
zlib-1.2.7.tar.gz
3. Extract tarballs
4. ./build_all.sh