[phb]: Document Uses=ldap

Chasing changes in
https://cgit.freebsd.org/ports/commit/?id=6e1233be229212a0496f42d611bd40f3e3a628da

Reviewed by: bofh
Differential Revision: https://reviews.freebsd.org/D38464

1 files changed, 22 insertions, 0 deletions

diff --git a/documentation/content/en/books/porters-handbook/uses/_index.adoc b/documentation/content/en/books/porters-handbook/uses/_index.adoc
index 817ed80eb3..e348d7d3ac 100644
--- a/documentation/content/en/books/porters-handbook/uses/_index.adoc
+++ b/documentation/content/en/books/porters-handbook/uses/_index.adoc
@@ -963,6 +963,28 @@ Fills in the boilerplate for kernel module ports, currently:
 * Handle cross-referencing kernel modules upon installation and deinstallation, using crossref:plist[plist-keywords-kld,`@kld`].
 * If the `debug` argument is given, the port can install a debug version of the module into [.filename]#KERN_DEBUGDIR#/[.filename]#KMODDIR#. By default, `KERN_DEBUGDIR` is copied from `DEBUGDIR` and set to [.filename]#/usr/lib/debug#. The framework will take care of creating and removing any required directories.
 
+[[uses-ldap]]
+== `ldap`
+
+Possible arguments: (none), <version>, client, server
+
+Registers a dependency on package:net/openldap[].
+It uses the specific `<version>` (without the dot notation) if set.
+Otherwise it tries to find the currently installed version.
+If necessary it falls back to the default version found in `bsd.default-versions.mk`.
+`client` specifies a runtime dependency on the client library. This is also the
+default.
+`server` specifies a runtime dependency on the server.
+
+The following variables can be accessed by the port:
+
+`IGNORE_WITH_OPENLDAP`::
+This variable can be defined if the ports does not support one or more versions of OpenLDAP.
+`WITH_OPENLDAP_VER`::
+User defined variable to set OpenLDAP version.
+`OPENLDAP_VER`::
+Detected OpenLDAP version.
+
 [[uses-lha]]
 == `lha`