install-deps.sh: install `python*-devel` for python*rpm-macros

in 087ea813, we installed '*rpm-macros' for the macros, so we can have
access to the latest python packaging related macros for preparing the
build dependencies.

but we could run into https://bugs.centos.org/view.php?id=16379, if
we already have an old version of python-devel installed. as the newer
version of python-rpm-macros conflicts with it.

it was a chicken-and-egg problem, as we don't know the exact name of
*rpm-macros packages. that's why we chose to install all of them. but
we have to upgrade the existing python-devel package to resolve the
conflict. but the since there is no python3-devel in RHEL7/CentOS7,
what they have is python36-devel. so we have to hardwire the
`%{python3_pkgversion}` to "36" even before we have access to this
macro, and upgrade the python36-devel package beforehand. but this
renders installing the rpm-macro package less useful -- we intend to
use the macro offered by the package to figure out "36".

as a workaround, we pretend that we know the "main" version of python3
in current RHEL/CentOS. and always install python36-devel for
python-rpm-macros. as the former requires the latter.

once all python3*-devel on all builders are upgraded, we will be safe
to install '*rpm-macros' again without installing python36-devel first.
by then, we could revert this change, or continue installing
python36-devel until the distro bumps up the "main" python version to 3.7

Fixes: https://tracker.ceph.com/issues/41603
Signed-off-by: Kefu Chai <kchai@redhat.com>
(cherry picked from commit 0b2be2b6710695867197ee84e411bdf0a843a06a)

Conflicts:
	install-deps.sh
- VERSION_ID in mimic, MAJOR_VERSION in master

diff --git a/install-deps.sh b/install-deps.sh
index 5b64ae34e452200fe5c123ccfb4db276601a5c3d..1f31eba751306c58d139166d53193900e38033fb 100755 (executable)
--- a/install-deps.sh
+++ b/install-deps.sh
@@ -224,6 +224,7 @@ else
                 $SUDO rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-$VERSION_ID
                 $SUDO rm -f /etc/yum.repos.d/dl.fedoraproject.org*
                 if test $ID = centos -a $VERSION_ID = 7 ; then
+                   $SUDO $yumdnf install -y python36-devel
                    case $(uname -m) in
                        x86_64)
                            $SUDO yum -y install centos-release-scl