Issue description:

python-ldap does not build on Alpine 3.15.

Wheel Build crashes with error (build log attached)

/usr/lib/gcc/x86_64-alpine-linux-musl/10.3.1/../../../../x86_64-alpine-linux-musl/bin/ld: cannot find -lldap_r

Steps to reproduce:

FROM python:alpine3.15
RUN apk add --update build-base openldap-dev python2-dev python3-dev && rm -rf /var/cache/apk/*
RUN pip install --no-cache-dir python-ldap

Operating system:

• Alpine 3.15

Python version:

• 3.10.0

python-ldap version:

• 3.4.0

Notes:

• This issue does not exist with Alpine 3.14 (to verify, please change Dockerfile to FROM python:alpine3.14)

broken-on-python-alpine3.15.txt