From the patchelf repository:
PatchELF is a simple utility for modifing existing ELF executables and libraries.
This repository contains binary releases for use in Alpine Linux.
Its intention is to make it easier to pull in the utility for use in Docker containers.
The binary package is available here:
https://github.com/strothj/alpine-patchelf/releases
FROM alpine:3.3
RUN apk add --no-cache ca-certificates libstdc++ && \
wget https://github.com/strothj/alpine-patchelf/releases/download/0.9/0.9.tar.gz && \
tar -C / -xzf 0.9.tar.gz && rm 0.9.tar.gz && \
patchelf --version && \
rm -rf /usr/bin/patchelf /usr/share/doc/patchelf /usr/share/man/man1/patchelf.*