tce-load -lwi compiletc libpng-dev.tcz squashfs-tools sstrip
gcc fbgrab.c -fopt-info-all -g -Wall -Ofast -march=native -mtune=native -fno-strict-aliasing -funroll-loops -fmerge-all-constants -Ofast -ftree-vectorize -funsafe-math-optimizations -mavx2 -flto -fprofile-generate -funroll-loops -fomit-frame-pointer -lpng -lz -o fbgrab
./fbgrab test.png
gcc fbgrab.c -fopt-info-all -g -Wall -Ofast -march=native -mtune=native -fno-strict-aliasing -funroll-loops -fmerge-all-constants -Ofast -ftree-vectorize -funsafe-math-optimizations -mavx2 -flto -fprofile-use -funroll-loops -fomit-frame-pointer -lpng -lz -o fbgrab
sstrip -z fbgrab
mkdir -p /tmp/fbgrab/usr/local/bin/
cp fbgrab /tmp/fbgrab/usr/local/bin/
mksquashfs /tmp/fbgrab/ fbgrab.tcz