Use install instead of cp to copy bootstrap tools

We need to preserve modification times on bootstrap tools, but `cp -p`
also tries to preserve flags, which fails if OBJROOT is on NFS.  A -N
option was added to cp for this purpose, but trying to use that would
break cross-building on hosts that don't have that option.  The best
remaining option is `install -p`, which we already assume is present.

PR:		275030
Reviewed by:	imp, emaste
Differential Revision:	https://reviews.freebsd.org/D53751

(cherry picked from commit f3cf4c0af5af6ce95065a615f998117ec1cd63aa)

2 files changed, 2 insertions, 2 deletions

diff --git a/Makefile.inc1 b/Makefile.inc1
index e3a451b72b10..f4396b839e9a 100644
--- a/Makefile.inc1
+++ b/Makefile.inc1
@@ -2704,7 +2704,7 @@ ${_bt}-link-${_tool}: .PHONY
 	if [ ! -e "$${source_path}" ] ; then \
 		echo "Cannot find host tool '${_tool}'"; false; \
 	fi; \
-	cp -pf "$${source_path}" "${WORLDTMP}/legacy/bin/${_tool}"
+	install -p "$${source_path}" "${WORLDTMP}/legacy/bin/${_tool}"
 ${_bt}-links: ${_bt}-link-${_tool}
 .endfor
 
diff --git a/tools/build/Makefile b/tools/build/Makefile
index aff664f2a68b..cee54fb71403 100644
--- a/tools/build/Makefile
+++ b/tools/build/Makefile
@@ -331,7 +331,7 @@ _LINK_HOST_TOOL=	ln -sfn
 # When building on FreeBSD we always copy the host tools instead of linking
 # into WORLDTMP to avoid issues with incompatible libraries (see r364030).
 # Note: we could create links if we don't intend to update the current machine.
-_COPY_HOST_TOOL=	cp -pf
+_COPY_HOST_TOOL=	install -p
 .else
 # However, this is not necessary on Linux/macOS. Additionally, copying the host
 # tools to another directory with cp -p results in freezes on macOS Big Sur for