diff --git a/share/mk/bsd.kern.mk b/share/mk/bsd.kern.mk
new file mode 100644
index 000000000000..023612392e36
--- /dev/null
+++ b/share/mk/bsd.kern.mk
@@ -0,0 +1,15 @@
+#	$Id$
+
+#
+# Warning flags for compiling the kernel and components of the kernel.
+#
+CWARNFLAGS?=	-W -Wreturn-type -Wcomment -Wredundant-decls -Wimplicit \
+		-Wnested-externs -Wstrict-prototypes -Wmissing-prototypes \
+		-Winline -Wunused -Wpointer-arith -Wcast-qual
+#
+# The following flags are next up for working on:
+#	-Wformat -Wall
+#
+# When working on removing warnings from code, the `-Werror' flag should be
+# of material assistance.
+#
diff --git a/sys/conf/kern.mk b/sys/conf/kern.mk
new file mode 100644
index 000000000000..023612392e36
--- /dev/null
+++ b/sys/conf/kern.mk
@@ -0,0 +1,15 @@
+#	$Id$
+
+#
+# Warning flags for compiling the kernel and components of the kernel.
+#
+CWARNFLAGS?=	-W -Wreturn-type -Wcomment -Wredundant-decls -Wimplicit \
+		-Wnested-externs -Wstrict-prototypes -Wmissing-prototypes \
+		-Winline -Wunused -Wpointer-arith -Wcast-qual
+#
+# The following flags are next up for working on:
+#	-Wformat -Wall
+#
+# When working on removing warnings from code, the `-Werror' flag should be
+# of material assistance.
+#