[CI:DOCS]build instructions for macOS

add instructions on how to build podman on macOS.

big thanks to acui for help in getting this written down.

Fixes: #9032

Signed-off-by: baude <bbaude@redhat.com>

build_osx.md

@@ -0,0 +1,55 @@
+# Building the Podman client on macOS
+
+The following describes the process for building the Podman client on macOS.
+
+## Install brew
+Podman requires brew -- a package manager for macOS.  This will allow additional packages to be installed that are
+needed by Podman.  See the [brew project page](https://brew.sh/) for installation instructions.
+
+##Install build dependencies
+Podman requires some software from brew to be able to build.  This can be done using brew from a macOS terminal:
+
+```
+$ brew install go go-md2man
+```
+
+## Obtain Podman source code
+
+You can obtain the latest source code for Podman from its github repository.
+
+```
+$ git clone http://github.com/containers/podman go/src/github.com/containers/podman
+```
+
+## Build client
+After completing the preparatory steps of obtaining the Podman source code and installing its dependencies, the client
+can now be built.
+
+```
+$ cd go/src/github.com/containers/podman
+$ make podman-remote-darwin
+$ mv bin/podman-remote-darwin bin/podman
+```
+
+The binary will be located in bin/
+```
+$ ls -l bin/
+```
+
+If you would like to build the docs associated with Podman on macOS:
+```
+$ make install-podman-remote-darwin-docs
+$ ls docs/build/remote/darwin
+```
+
+To install and view these manpages:
+
+```
+$ cp -a docs/build/remote/darwin/* /usr/share/man/man1
+$ man podman
+```
+
+## Using the client
+
+To learn how to use the Podman client, refer its
+[tutorial](https://github.com/containers/podman/blob/master/docs/tutorials/remote_client.md).