Unpacks a static library (.a) and strips all the debug symbols, then repacks the library again. Overwrites original file!

strip_lib.h

#!/bin/bash
# usage: repack.sh file.a

# used on macOS
# Originally from https://stackoverflow.com/a/49632127/468516

if [ -z "$1" ]; then
    echo "usage: repack file.a"
    exit 1
fi

if [ -d tmprepack ]; then
    /bin/rm -rf tmprepack
fi

mkdir tmprepack
cp $1 tmprepack
pushd tmprepack

basename=${1##*/}

ar xv $basename
/bin/rm -f $basename

ls -la .
i=1000
for p in *.o ; do
    if [[ $p == *.o ]]; then
        strip -S $p
        mv $p ${i}.o
        ((i++))
    fi
done

ar crus $basename *.o
mv $basename ..

popd
/bin/rm -rf tmprepack
exit 0