Compiled on RPI3B with 6.1.25-piCore-v7

Compile Flags:
CFLAGS='-march=armv6zk -mtune=arm1176jzf-s -mfpu=vfp -L/usr/local/lib -Os -pipe -flto -fuse-linker-plugin -fno-exceptions'
CXXFLAGS='-march=armv6zk -mtune=arm1176jzf-s -mfpu=vfp -L/usr/local/lib -Os -pipe -flto -fuse-linker-plugin -fno-exceptions -fno-rtti'
LDFLAGS='-Wl,-rpath=/usr/local/lib -Wl,-O1'
export CFLAGS CXXFLAGS LDFLAGS

Dependencies:
compiletc
automake
libtool-dev
python3.11-dev
llvm15-bin

Commands:

wget https://download.gnome.org/sources/libxml2/2.11/libxml2-2.11.5.tar.xz

tar -xf libxml2-2.11.5.tar.xz

cd libxml2-2.11.5/

./autogen.sh --prefix=/usr/local --enable-shared --enable-static --with-python=/usr/local/bin/python3

time make -j4
real    5m 6.69s
user    7m 4.86s
sys     0m 13.33s

DESTDIR=/tmp/packing-libxml2 make install

llvm-strip --strip-debug /tmp/packing-libxml2/usr/local/lib/*.a
llvm-strip --strip-debug /tmp/packing-libxml2/usr/local/lib/python3.*/site-packages/*.a

# dev (remember to check python version)
mkdir -p /tmp/packing-libxml2-dev/usr/local/lib
mv /tmp/packing-libxml2/usr/local/include /tmp/packing-libxml2-dev/usr/local
mv /tmp/packing-libxml2/usr/local/lib/*a /tmp/packing-libxml2-dev/usr/local/lib
mv /tmp/packing-libxml2/usr/local/lib/pkgconfig/ /tmp/packing-libxml2-dev/usr/local/lib
mv /tmp/packing-libxml2/usr/local/lib/cmake /tmp/packing-libxml2-dev/usr/local/lib
mv /tmp/packing-libxml2/usr/local/lib/xml2Conf.sh /tmp/packing-libxml2-dev/usr/local/lib
mkdir -p /tmp/packing-libxml2-dev/usr/local/share
mv /tmp/packing-libxml2/usr/local/share/aclocal/ /tmp/packing-libxml2-dev/usr/local/share
mkdir -p /tmp/packing-libxml2-dev/usr/local/bin
mv /tmp/packing-libxml2/usr/local/bin/xml2-config /tmp/packing-libxml2-dev/usr/local/bin
mkdir -p /tmp/packing-libxml2-dev/usr/local/lib/python3.11/site-packages
mv /tmp/packing-libxml2/usr/local/lib/python3.11/site-packages/*a /tmp/packing-libxml2-dev/usr/local/lib/python3.11/site-packages

# There's a path bug with the installer in 2.11.5
# You'll need to move the headers back to where they should be
mv squashfs-root/usr/local/include/libxml2/libxml/* squashfs-root/usr/local/include/libxml2/
rmdir squashfs-root/usr/local/include/libxml2/libxml/

# python
mkdir -p /tmp/packing-libxml2-python/usr/local/lib/
mv /tmp/packing-libxml2/usr/local/lib/python3.* /tmp/packing-libxml2-python/usr/local/lib/

# doc
mkdir -p /tmp/packing-libxml2-doc/usr/local/
mv /tmp/packing-libxml2/usr/local/share /tmp/packing-libxml2-doc/usr/local/

# bin
mkdir -p /tmp/packing-libxml2-bin/usr/local/
mv /tmp/packing-libxml2/usr/local/bin /tmp/packing-libxml2-bin/usr/local/

# strip
strip --strip-unneeded /tmp/packing-libxml2-bin/usr/local/bin/*
strip --strip-unneeded /tmp/packing-libxml2/usr/local/lib/libxml2.so.2.*
strip --strip-unneeded /tmp/packing-libxml2-python/usr/local/lib/python3.*/site-packages/*so

# squash
cd /tmp
sudo chown -R root:root packing-libxml2*
for D in packing-libxml2*; do mksquashfs $D ${D#packing-}.tcz -quiet; done