Configure env :

./configure --build=i686-pc-linux-gnu --host=arm --with-sdl-prefix=/opt/trimui-toolchain/arm-buildroot-linux-gnueabi/sysroot/usr CFLAGS=-I/opt/trimui-toolchain/arm-buildroot-linux-gnueabi/sysroot/usr/include

build and package :

make clean && make && make DESTDIR=./dist install

gngeo binary will be created in src/dist/usr/local/bin/
gngeo-data.zip will be created in the root folder of the Git repository.