This forces the build system to only produce static archives. This is
intended to be the counterpart of the (already existing) `NOLIBSTATIC`,
which does the opposite.

N.B. There is already a `NOPIC` which also disables shared objects, but
in addition furthermore turns of position-independent-code. Now, `NOPIC`
implies `NOLIBSHARED` instead, and only directly concerns itself with
disabling position-independent-code.
---
 gnu/usr.bin/cc/libgcov/Makefile | 2 +-
 libexec/ld.so/Makefile          | 2 +-
 regress/libexec/Makefile        | 2 +-
 share/mk/bsd.README             | 6 +++++-
 share/mk/bsd.lib.mk             | 6 +++---
 share/mk/bsd.own.mk             | 4 ++++
 6 files changed, 15 insertions(+), 7 deletions(-)

diff --git a/gnu/usr.bin/cc/libgcov/Makefile b/gnu/usr.bin/cc/libgcov/Makefile
index b1d4f7e8d53..e1f0db10312 100644
--- a/gnu/usr.bin/cc/libgcov/Makefile
+++ b/gnu/usr.bin/cc/libgcov/Makefile
@@ -76,7 +76,7 @@ BUILDAFTER += ${OBJS_T} ${OBJS_P} ${OBJS_S}
 ${OBJS_T}: libgcov.c
 	${CC_T} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
 
-.if !defined(NOPIC)
+.if !defined(NOLIBSHARED)
 ${OBJS_S}: libgcov.c
 	${CC_S} -DL${.PREFIX} -o ${.TARGET} ${.ALLSRC:M*.c}
 .endif
diff --git a/libexec/ld.so/Makefile b/libexec/ld.so/Makefile
index 7f8f6ef2961..e9d101546bc 100644
--- a/libexec/ld.so/Makefile
+++ b/libexec/ld.so/Makefile
@@ -5,7 +5,7 @@ MAN=	ld.so.1
 
 .include <bsd.own.mk>
 
-.if defined(NOPIC)
+.if defined(NOLIBSHARED)
 NOPROG=
 .else
 PROG=	ld.so
diff --git a/regress/libexec/Makefile b/regress/libexec/Makefile
index a1cd2b3d02e..e0c824dbe78 100644
--- a/regress/libexec/Makefile
+++ b/regress/libexec/Makefile
@@ -3,7 +3,7 @@
 .include <bsd.own.mk>
 
 SUBDIR+= ftpd
-.if !defined(NOPIC)
+.if !defined(NOLIBSHARED)
 SUBDIR+= ld.so
 .endif
 
diff --git a/share/mk/bsd.README b/share/mk/bsd.README
index ce23a826a8d..27e447e1bd9 100644
--- a/share/mk/bsd.README
+++ b/share/mk/bsd.README
@@ -227,8 +227,12 @@ SYS_INCLUDE	Copy or symlink kernel include files into /usr/include.
 
 NOPROFILE	Do not build profiled versions of system libraries.
 
+NOLIBSTATIC	Do not build static libraries.
+
+NOLIBSHARED	Do not build shared libraries.
+
 NOPIC		Do not build PIC versions of system libraries, and
-		do not build shared libraries.
+		do not build shared libraries. (Implies NOLIBSHARED.)
 
 NOPIE		Do not build PIE objects or executables.
 
diff --git a/share/mk/bsd.lib.mk b/share/mk/bsd.lib.mk
index 9cf9ffdf8e6..cef4acb2cc9 100644
--- a/share/mk/bsd.lib.mk
+++ b/share/mk/bsd.lib.mk
@@ -2,7 +2,7 @@
 #	$NetBSD: bsd.lib.mk,v 1.67 1996/01/17 20:39:26 mycroft Exp $
 #	@(#)bsd.lib.mk	5.26 (Berkeley) 5/2/91
 
-.include <bsd.own.mk>				# for 'NOPIC' definition
+.include <bsd.own.mk>				# for 'NOLIBSHARED' definition
 
 .if exists(${.CURDIR}/../Makefile.inc)
 .include "${.CURDIR}/../Makefile.inc"
@@ -154,7 +154,7 @@ _LIBS=lib${LIB}.a
 _LIBS+=lib${LIB}_p.a
 .endif
 
-.if !defined(NOPIC)
+.if !defined(NOLIBSHARED)
 .if defined(SHLIB_MAJOR) && defined(SHLIB_MINOR)
 FULLSHLIBNAME=lib${LIB}.so.${SHLIB_MAJOR}.${SHLIB_MINOR}
 _LIBS+=${FULLSHLIBNAME}
@@ -283,7 +283,7 @@ realinstall:
 	    lib${LIB}_p.a ${DESTDIR}${LIBDIR}
 	chmod ${LIBMODE} ${DESTDIR}${LIBDIR}/lib${LIB}_p.a
 .endif
-.if !defined(NOPIC) && defined(SHLIB_MAJOR) && defined(SHLIB_MINOR)
+.if !defined(NOLIBSHARED) && defined(SHLIB_MAJOR) && defined(SHLIB_MINOR)
 	${INSTALL} ${INSTALL_COPY} -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
 	    ${FULLSHLIBNAME} ${DESTDIR}${LIBDIR}
 .if defined(LIBREBUILD)
diff --git a/share/mk/bsd.own.mk b/share/mk/bsd.own.mk
index acde59a95c1..d267c78099c 100644
--- a/share/mk/bsd.own.mk
+++ b/share/mk/bsd.own.mk
@@ -68,6 +68,10 @@ BUILD_LLDB?=no
 STATICPIE?=-pie
 .endif
 
+.ifdef defined(NOPIC)
+NOLIBSHARED=yes
+.endif
+
 # Executables are always PIC on mips64.
 # Do not pass -fno-pie to the compiler because clang does not accept it.
 .if ${MACHINE_ARCH} == "mips64" || ${MACHINE_ARCH} == "mips64el"
-- 
2.42.0