diff --git a/lib/libdpv/Makefile b/lib/libdpv/Makefile
index f2dc481057e5..3a9921c92cdb 100644
--- a/lib/libdpv/Makefile
+++ b/lib/libdpv/Makefile
@@ -12,6 +12,4 @@ SRCS=		dialog_util.c dialogrc.c dprompt.c dpv.c status.c util.c
 
 CFLAGS+=	-I${.CURDIR}
 
-WARNS?=		6
-
 .include <bsd.lib.mk>
diff --git a/lib/libfigpar/Makefile b/lib/libfigpar/Makefile
index 6f0196606c7b..bb24da356360 100644
--- a/lib/libfigpar/Makefile
+++ b/lib/libfigpar/Makefile
@@ -16,6 +16,4 @@ CFLAGS+=	-I${.CURDIR}
 
 SRCS=		figpar.c string_m.c
 
-WARNS?=		6
-
 .include <bsd.lib.mk>
diff --git a/lib/libgpio/Makefile b/lib/libgpio/Makefile
index 4393c79e56e5..94118d6eb00d 100644
--- a/lib/libgpio/Makefile
+++ b/lib/libgpio/Makefile
@@ -31,6 +31,4 @@ MLINKS=	gpio.3 gpio_open.3 \
 	gpio.3 gpio_pin_invout.3 \
 	gpio.3 gpio_pin_pulsate.3
 
-WARNS?=	6
-
 .include <bsd.lib.mk>
diff --git a/lib/libnv/Makefile b/lib/libnv/Makefile
index 38ec009815b7..f0ed8c4fa52c 100644
--- a/lib/libnv/Makefile
+++ b/lib/libnv/Makefile
@@ -15,8 +15,6 @@ SRCS+=	msgio.c
 SRCS+=	nvlist.c
 SRCS+=	nvpair.c
 
-WARNS?=	6
-
 .if ${MK_TESTS} != "no"
 SUBDIR+=	tests
 .endif
diff --git a/lib/libpjdlog/Makefile b/lib/libpjdlog/Makefile
index e44f53b489fa..ead5619afb67 100644
--- a/lib/libpjdlog/Makefile
+++ b/lib/libpjdlog/Makefile
@@ -15,6 +15,4 @@ CFLAGS+=-I${.CURDIR}
 
 LIBADD=	util
 
-WARNS?=	6
-
 .include <bsd.lib.mk>
diff --git a/lib/libproc/Makefile.inc b/lib/libproc/Makefile.inc
new file mode 100644
index 000000000000..265f86d1ed55
--- /dev/null
+++ b/lib/libproc/Makefile.inc
@@ -0,0 +1,3 @@
+# $FreeBSD$
+
+.include "../Makefile.inc"
diff --git a/lib/libproc/tests/Makefile b/lib/libproc/tests/Makefile
index c4a847155663..d48250e3bb67 100644
--- a/lib/libproc/tests/Makefile
+++ b/lib/libproc/tests/Makefile
@@ -12,6 +12,4 @@ LIBADD=	elf proc rtld_db util
 # for testing symbol lookup.
 STRIP=
 
-WARNS?=	6
-
 .include <bsd.test.mk>