Document the shiny new WITHOUT_MODULES knob in make.conf.

PR:		kern/76225
Prodded by:	ru@, brueffer@
MFC after:	2 weeks

2 files changed, 12 insertions, 0 deletions

diff --git a/share/examples/etc/make.conf b/share/examples/etc/make.conf
index 2cac717..7afebd4 100644
--- a/share/examples/etc/make.conf
+++ b/share/examples/etc/make.conf
@@ -169,6 +169,9 @@
 # The list of modules to build instead of all of them.
 #MODULES_OVERRIDE=	linux ipfw
 #
+# The list of modules to never build, applied *after* MODULES_OVERRIDE.
+#WITHOUT_MODULES=	bktr plip
+#
 # The following controls building optional IDEA code in libcrypto and
 # certain ports.  Patents are involved - you must not use this unless
 # you either have a license or fall within patent 'fair use'
diff --git a/share/man/man5/make.conf.5 b/share/man/man5/make.conf.5
index fef329e..a277e34 100644
--- a/share/man/man5/make.conf.5
+++ b/share/man/man5/make.conf.5
@@ -352,6 +352,15 @@ rather than load the server's kernel.
 .It Va MODULES_OVERRIDE
 .Pq Vt str
 Set to a list of modules to build instead of all of them.
+.It Va WITHOUT_MODULES
+.Pq Vt str
+Set to a list of modules to exclude from the build.  This provides a
+somewhat easier way to exclude modules you are certain you will never
+need than specifying 
+.Va MODULES_OVERRIDE .
+This is applied 
+.Em after
+.Va MODULES_OVERRIDE .
 .It Va PORTS_MODULES
 Set this to the list of ports you wish to rebuild every time the kernel
 is built.