tce-load -i compiletc zstd-dev lzo-dev

wget https://mirrors.edge.kernel.org/pub/linux/kernel/people/kdave/btrfs-progs/btrfs-progs-v5.12.1.tar.xz

cd btrfs-progs-v5.12.1

CC="gcc -flto -march=i486 -mtune=i686 -Os -pipe" CXX="g++ -flto -march=i486 -mtune=i686 -Os -pipe -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local --localstatedir=/var --disable-static --disable-documentation --disable-python

find . -name Makefile -type f -exec sed -i 's/-g -O1//g' {} \;
find . -name Makefile.inc -type f -exec sed -i 's/-g -O1//g' {} \;

make [1m 44.27s]
sudo make install

        btrfs-progs:        v5.12.1 
        libbtrfs:           0.1.2 (deprecated)
        libbtrfsutil:       1.2.0

        prefix:             /usr/local
        exec prefix:        ${prefix}

        bindir:             ${exec_prefix}/bin
        libdir:             ${exec_prefix}/lib
        includedir:         ${prefix}/include
        pkgconfigdir:       ${libdir}/pkgconfig

        compiler:           gcc -flto -march=i486 -mtune=i686 -Os -pipe
        cflags:             -g -O1 -Wall -D_FORTIFY_SOURCE=2
        ldflags:            

        programs:           yes
        shared libraries:   yes
        static libraries:   no
        documentation:      no
        doc generator:      none
        backtrace support:  yes
        btrfs-convert:      yes (ext2)
        btrfs-restore zstd: yes
        Python bindings:    no
        Python interpreter: 
        crypto provider:    builtin 
        zoned device:       yes