Docker build does not support selinux labels

[mgraff]

If selinux labels are present on the host filesystem, the ./build package-docker command fails with this error:

/bin/sh: 0: Can't open /src/qt/configure

It's a permission denied error because of the selinux labels.

Solution: the :Z modifier has to be added on bind mounts in the build script.

For example, replace:

docker run --rm -v%s:/src -v%s:/tgt -v%s:/pkg

by

docker run --rm -v%s:/src:Z -v%s:/tgt:Z -v%s:/pkg:Z

[ashkulz]

@mgraff, thanks for reporting this! I found this documentation about it but I'm not sure what happens if you've not configured selinux?