Comment 0 for bug 1748468

It takes ~2 minutes to compile lxml from source using a 2.8GHz quad-core 16GB Macbook Pro. For example see the output of the command below.

Would be really nice if pre-built wheels could be provided for muslc / Alpine. As containerized environments are becoming the standard for ops, muslc has risen in popularity, so I would argue that it would make a lot of sense to provide wheels for this as well.

```
❯ time (echo "FROM python:3.6-alpine\nRUN apk add --no-cache gcc musl-dev libxml2-dev libxslt-dev\nRUN pip install lxml" | docker build -t alpine-lxml-test -)
Sending build context to Docker daemon 2.048kB
Step 1/3 : FROM python:3.6-alpine
 ---> 29b5ce58cfbc
Step 2/3 : RUN apk add --no-cache gcc musl-dev libxml2-dev libxslt-dev
 ---> Running in 0203751a73ad
fetch http://dl-cdn.alpinelinux.org/alpine/v3.4/main/x86_64/APKINDEX.tar.gz
fetch http://dl-cdn.alpinelinux.org/alpine/v3.4/community/x86_64/APKINDEX.tar.gz
(1/21) Installing binutils-libs (2.26-r1)
(2/21) Installing binutils (2.26-r1)
(3/21) Installing gmp (6.1.0-r0)
(4/21) Installing isl (0.14.1-r0)
(5/21) Installing libgomp (5.3.0-r0)
(6/21) Installing libatomic (5.3.0-r0)
(7/21) Installing libgcc (5.3.0-r0)
(8/21) Installing pkgconf (0.9.12-r0)
(9/21) Installing pkgconfig (0.25-r1)
(10/21) Installing mpfr3 (3.1.2-r0)
(11/21) Installing mpc1 (1.0.3-r0)
(12/21) Installing libstdc++ (5.3.0-r0)
(13/21) Installing gcc (5.3.0-r0)
(14/21) Installing zlib-dev (1.2.11-r0)
(15/21) Installing libxml2 (2.9.5-r0)
(16/21) Installing libxml2-dev (2.9.5-r0)
(17/21) Installing libgpg-error (1.23-r0)
(18/21) Installing libgcrypt (1.7.9-r0)
(19/21) Installing libxslt (1.1.29-r1)
(20/21) Installing libxslt-dev (1.1.29-r1)
(21/21) Installing musl-dev (1.1.14-r16)
Executing busybox-1.24.2-r14.trigger
OK: 121 MiB in 55 packages
Removing intermediate container 0203751a73ad
 ---> 52c2d0b9f6b9
Step 3/3 : RUN pip install lxml
 ---> Running in 348a7b0bc55a
Collecting lxml
  Downloading lxml-4.1.1.tar.gz (2.4MB)
Building wheels for collected packages: lxml
  Running setup.py bdist_wheel for lxml: started
  Running setup.py bdist_wheel for lxml: still running...
  Running setup.py bdist_wheel for lxml: finished with status 'done'
  Stored in directory: /root/.cache/pip/wheels/5d/14/6a/e0bbcf0b91d5add2b0caa1f704d190b36474c4d29b16f25192
Successfully built lxml
Installing collected packages: lxml
Successfully installed lxml-4.1.1
Removing intermediate container 348a7b0bc55a
 ---> be86cbe1c498
Successfully built be86cbe1c498
Successfully tagged alpine-lxml-test:latest
( echo | docker build -t alpine-lxml-test -; ) 0.12s user 0.09s system 0% cpu 2:13.81 total
```