Index: head/tools/build/Makefile
===================================================================
--- head/tools/build/Makefile	(revision 336335)
+++ head/tools/build/Makefile	(revision 336336)
@@ -1,55 +1,62 @@
 # $FreeBSD$
 
 .PATH: ${.CURDIR}/../../include
 
 LIB=		egacy
 SRC=
 INCSGROUPS=	INCS SYSINCS
 INCS=
 
 SYSINCSDIR=	${INCLUDEDIR}/sys
 
 BOOTSTRAPPING?=	0
 
 _WITH_PWCACHEDB!= grep -c pwcache_groupdb /usr/include/grp.h || true
 .if ${_WITH_PWCACHEDB} == 0
 .PATH: ${.CURDIR}/../../contrib/libc-pwcache
 CFLAGS+=	-I${.CURDIR}/../../contrib/libc-pwcache \
 		-I${.CURDIR}/../../lib/libc/include
 SRCS+=		pwcache.c
 .endif
 
 _WITH_STRSVIS!=	grep -c strsvis /usr/include/vis.h || true
 .if ${_WITH_STRSVIS} == 0
 .PATH: ${.CURDIR}/../../contrib/libc-vis
 SRCS+=		vis.c
 CFLAGS+=	-I${.CURDIR}/../../contrib/libc-vis \
 		-I${.CURDIR}/../../lib/libc/include
 .endif
 
 _WITH_REALLOCARRAY!= grep -c reallocarray /usr/include/stdlib.h || true
 .if ${_WITH_REALLOCARRAY} == 0
 .PATH: ${.CURDIR}/../../lib/libc/stdlib
 INCS+=		stdlib.h
 SRCS+=		reallocarray.c
 CFLAGS+=	-I${.CURDIR}/../../lib/libc/include
 .endif
 
 _WITH_UTIMENS!= grep -c utimensat /usr/include/sys/stat.h || true
 .if ${_WITH_UTIMENS} == 0
 SYSINCS+=	stat.h
 SRCS+=		futimens.c utimensat.c
 .endif
 
+_WITH_EXPLICIT_BZERO!= grep -c explicit_bzero /usr/include/strings.h || true
+.if ${_WITH_EXPLICIT_BZERO} == 0
+.PATH: ${SRCTOP}/sys/libkern
+INCS+=		strings.h
+SRCS+=		explicit_bzero.c
+.endif
+
 .if empty(SRCS)
 SRCS=		dummy.c
 .endif
 
 .if defined(CROSS_BUILD_TESTING)
 SUBDIR=		cross-build
 .endif
 
 # Needed to build config (since it uses libnv)
 SYSINCS+=	${SRCTOP}/sys/sys/nv.h ${SRCTOP}/sys/sys/cnv.h
 
 .include <bsd.lib.mk>
Index: head/tools/build/strings.h
===================================================================
--- head/tools/build/strings.h	(nonexistent)
+++ head/tools/build/strings.h	(revision 336336)
@@ -0,0 +1,42 @@
+/*-
+ * Copyright (c) 2015 Dimitry Andric <dim@FreeBSD.org>
+ * Copyright (c) 2018 Alex Richardson <arichardson@FreeBSD.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _LEGACY_STRINGS_H_
+#define	_LEGACY_STRINGS_H_
+
+#include_next <strings.h>
+
+__BEGIN_DECLS
+
+#if __BSD_VISIBLE
+void	 explicit_bzero(void *, size_t);
+#endif /* __BSD_VISIBLE */
+
+__END_DECLS
+
+#endif /* !_LEGACY_STRINGS_H_ */

Property changes on: head/tools/build/strings.h
___________________________________________________________________
Added: svn:eol-style
## -0,0 +1 ##
+native
\ No newline at end of property
Added: svn:keywords
## -0,0 +1 ##
+FreeBSD=%H
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Added: svn:mime-type
## -0,0 +1 ##
+text/plain
\ No newline at end of property