From ff8962446b0a1efc992373636bf917874a039b58 Mon Sep 17 00:00:00 2001
From: Peter Wemm <peter@FreeBSD.org>
Date: Sun, 11 Jan 1998 11:43:36 +0000
Subject: [PATCH] Add an option (-M) to install to disable use of mmap(2). 
 This is kinda handy at the moment with -current's mmap+unlink interactions.. 
 The problems seem worst when using INSTALL="install -C" in /etc/make.conf.
 This could well come in handy in the future too.

---
 usr.bin/xinstall/install.1  | 10 +++++++---
 usr.bin/xinstall/xinstall.c | 11 +++++++----
 2 files changed, 14 insertions(+), 7 deletions(-)

diff --git a/usr.bin/xinstall/install.1 b/usr.bin/xinstall/install.1
index 6d06e4987188..2ebe83ff06cc 100644
--- a/usr.bin/xinstall/install.1
+++ b/usr.bin/xinstall/install.1
@@ -30,7 +30,7 @@
 .\" SUCH DAMAGE.
 .\"
 .\"	From: @(#)install.1	8.1 (Berkeley) 6/6/93
-.\"	$Id: install.1,v 1.9 1997/02/22 19:57:54 peter Exp $
+.\"	$Id: install.1,v 1.10 1997/08/27 06:29:23 charnier Exp $
 .\"
 .Dd September 22, 1996
 .Dt INSTALL 1
@@ -40,14 +40,14 @@
 .Nd install binaries
 .Sh SYNOPSIS
 .Nm install
-.Op Fl CcDps
+.Op Fl CcDMps
 .Op Fl f Ar flags
 .Op Fl g Ar group
 .Op Fl m Ar mode
 .Op Fl o Ar owner
 .Ar file1 file2
 .Nm install
-.Op Fl CcDps
+.Op Fl CcDMps
 .Op Fl f Ar flags
 .Op Fl g Ar group
 .Op Fl m Ar mode
@@ -107,6 +107,9 @@ Specify the target's file flags; see
 for a list of possible flags and their meanings.
 .It Fl g
 Specify a group. A numeric GID is allowed.
+.It Fl M
+Disable all use of
+.Xr mmap 2 .
 .It Fl m
 Specify an alternate mode.
 The default mode is set to rwxr-xr-x (0755).
@@ -162,6 +165,7 @@ are created in the target directory.
 .Xr cp 1 ,
 .Xr mv 1 ,
 .Xr strip 1 ,
+.Xr mmap 2 ,
 .Xr chown 8
 .Sh HISTORY
 The
diff --git a/usr.bin/xinstall/xinstall.c b/usr.bin/xinstall/xinstall.c
index 607d7ada316b..a4a1bede01b5 100644
--- a/usr.bin/xinstall/xinstall.c
+++ b/usr.bin/xinstall/xinstall.c
@@ -42,7 +42,7 @@ static const char copyright[] =
 static char sccsid[] = "From: @(#)xinstall.c	8.1 (Berkeley) 7/21/93";
 #endif
 static const char rcsid[] =
-	"$Id: xinstall.c,v 1.27 1997/10/28 14:20:10 ache Exp $";
+	"$Id: xinstall.c,v 1.28 1998/01/09 06:05:13 jb Exp $";
 #endif /* not lint */
 
 /*-
@@ -87,7 +87,7 @@ static const char rcsid[] =
 #define MAP_FAILED ((caddr_t)-1)	/* from <sys/mman.h> */
 #endif
 
-int debug, docompare, docopy, dodir, dopreserve, dostrip, verbose;
+int debug, docompare, docopy, dodir, dopreserve, dostrip, verbose, nommap;
 int mode = S_IRWXU|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH;
 char *group, *owner, pathbuf[MAXPATHLEN];
 char pathbuf2[MAXPATHLEN];
@@ -136,7 +136,7 @@ main(argc, argv)
 	char *flags, *to_name;
 
 	iflags = 0;
-	while ((ch = getopt(argc, argv, "CcdDf:g:m:o:psv")) != -1)
+	while ((ch = getopt(argc, argv, "CcdDf:g:m:Mo:psv")) != -1)
 		switch((char)ch) {
 		case 'C':
 			docompare = docopy = 1;
@@ -165,6 +165,9 @@ main(argc, argv)
 				     optarg);
 			mode = getmode(set, 0);
 			break;
+		case 'M':
+			nommap = 1;
+			break;
 		case 'o':
 			owner = optarg;
 			break;
@@ -711,7 +714,7 @@ trymmap(fd)
 {
 	struct statfs stfs;
 
-	if (fstatfs(fd, &stfs) < 0)
+	if (nommap || fstatfs(fd, &stfs) < 0)
 		return 0;
 
 /* NetBSD MOUNT_XXX defines are strings, but doesn't have a MOUNT_NONE. */