[rtems-docs commit] posix.rst: Add info for FreeBSD 13

[Joel Sherrill]

Module:    rtems-docs
Branch:    master
Commit:    13092ff2f98d95b4e9cb428607a709d9089957f6
Changeset: http://git.rtems.org/rtems-docs/commit/?id=13092ff2f98d95b4e9cb428607a709d9089957f6

Author:    Ryan Long <ryan.long at oarcorp.com>
Date:      Tue Sep 21 12:56:44 2021 -0400

posix.rst: Add info for FreeBSD 13

Add list of additional packages needed to build RTEMS environment for
FreeBSD 13.

---

 user/hosts/posix.rst | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/user/hosts/posix.rst b/user/hosts/posix.rst
index 6686fc9..818eb25 100644
--- a/user/hosts/posix.rst
+++ b/user/hosts/posix.rst
@@ -195,6 +195,13 @@ The RTEMS Source Builder has been tested on FreeBSD 9.1, 10.3, 11 and
   # pkg install -y python
   # pkg install -y gsed
 
+For FreeBSD 13, you will need to install the packages listed above, as well as
+the following additional ones. They are:
+
+.. code-block:: none
+
+  # pkg install -y bison texinfo gmake binutils
+
 FreeBSD's default C compiler is LLVM and installing the host's GCC compiler
 package may break building GCC. We recommend you do not install the GCC
 package and you use the default C compiler.