Update to bmake-20130330

29 files changed, 771 insertions, 330 deletions

diff --git a/contrib/bmake/ChangeLog b/contrib/bmake/ChangeLog
index 9d54c18..f0374ba 100644
--- a/contrib/bmake/ChangeLog
+++ b/contrib/bmake/ChangeLog
@@ -1,3 +1,47 @@
+2013-03-30  Simon J. Gerraty  <sjg@bad.crufty.net>
+
+	* Makefile (MAKE_VERSION): 20130330
+	  Merge with NetBSD make, pick up
+	  o meta.c: refine the handling of .OODATE in commands.
+	    Rather than suppress command comparison for the entire script
+	    as though .NOMETA_CMP had been used, only suppress it for the
+	    one command line.
+	    This allows something like ${.OODATE:M.NOMETA_CMP} to be used to 
+	    suppress comparison of a command without otherwise affecting it.
+	  o make.1: document that
+
+2013-03-22  Simon J. Gerraty  <sjg@bad.crufty.net>
+
+	* Makefile (MAKE_VERSION): 20130321
+	  yes, not quite right but its a cooler number.
+	  Merge with NetBSD make, pick up
+	  o parse.c: fix ParseGmakeExport to be portable 
+	    and add a unit-test.
+	* meta.c: call meta_init() before makefiles are read and if built
+	  with filemon support set .MAKE.PATH_FILEMON to _PATH_FILEMON
+	  this let's makefiles test for support.
+	  Call meta_mode_init() to process .MAKE.MODE.
+
+2013-03-13  Simon J. Gerraty  <sjg@bad.crufty.net>
+
+	* Makefile (MAKE_VERSION): 20130305
+	  Merge with NetBSD make, pick up
+	  o run .STALE: target when a dependency from .depend is missing.
+	  o job.c: add Job_RunTarget() for the above and .BEGIN
+
+2013-03-03  Simon J. Gerraty  <sjg@bad.crufty.net>
+
+	* Makefile (MAKE_VERSION): 20130303
+	  Merge with NetBSD make, pick up
+	  o main.c: set .MAKE.OS to utsname.sysname
+	  o job.c: more checks for read and poll errors
+	  o var.c: lose VarChangeCase() saves 4% time
+
+2013-03-02  Simon J. Gerraty  <sjg@bad.crufty.net>
+
+	* boot-strap: remove MAKEOBJDIRPREFIX from environment since we
+	  want to use MAKEOBJDIR
+
 2013-01-27  Simon J. Gerraty  <sjg@bad.crufty.net>
 
 	* Merge with NetBSD make, pick up
diff --git a/contrib/bmake/FILES b/contrib/bmake/FILES
index b75cf1c..dedc1ac 100644
--- a/contrib/bmake/FILES
+++ b/contrib/bmake/FILES
@@ -102,6 +102,7 @@ unit-tests/dotwait
 unit-tests/error
 unit-tests/export
 unit-tests/export-all
+unit-tests/export-env
 unit-tests/forloop
 unit-tests/forsubst
 unit-tests/hash
diff --git a/contrib/bmake/Makefile b/contrib/bmake/Makefile
index 3607326..edf0bd8 100644
--- a/contrib/bmake/Makefile
+++ b/contrib/bmake/Makefile
@@ -1,7 +1,7 @@
-#	$Id: Makefile,v 1.5 2013/01/28 19:31:58 sjg Exp $
+#	$Id: Makefile,v 1.10 2013/03/31 05:57:19 sjg Exp $
 
 # Base version on src date
-MAKE_VERSION= 20130123
+MAKE_VERSION= 20130330
 
 PROG=	bmake
 
@@ -187,14 +187,14 @@ MANDIR= ${SHAREDIR}/man
 .if !exists(.depend)
 ${OBJS}: config.h
 .endif
-.if ${MK_AUTOCONF_MK} == "yes"
-.include <autoconf.mk>
-.endif
 
 # make sure that MAKE_VERSION gets updated.
 main.o: ${SRCS} ${MAKEFILE}
 
 # start-delete2 for bsd.after-import.mk
+.if ${MK_AUTOCONF_MK} == "yes"
+.include <autoconf.mk>
+.endif
 SHARE_MK?=${SHAREDIR}/mk
 MKSRC=${srcdir}/mk
 INSTALL?=${srcdir}/install-sh
diff --git a/contrib/bmake/bmake.1 b/contrib/bmake/bmake.1
index 82cec21..2403eae 100644
--- a/contrib/bmake/bmake.1
+++ b/contrib/bmake/bmake.1
@@ -1,4 +1,4 @@
-.\"	$NetBSD: make.1,v 1.210 2013/01/27 18:52:01 sjg Exp $
+.\"	$NetBSD: make.1,v 1.213 2013/03/31 05:49:51 sjg Exp $
 .\"
 .\" Copyright (c) 1990, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -29,7 +29,7 @@
 .\"
 .\"	from: @(#)make.1	8.4 (Berkeley) 3/19/94
 .\"
-.Dd January 23, 2013
+.Dd March 30, 2013
 .Dt MAKE 1
 .Os
 .Sh NAME
@@ -874,6 +874,13 @@ by appending their names to
 is re-exported whenever
 .Ql Va .MAKEOVERRIDES
 is modified.
+.It Va .MAKE.PATH_FILEMON
+If
+.Nm
+was built with 
+.Xr filemon 4
+support, this is set to the path of the device node.
+This allows makefiles to test for this support.
 .It Va .MAKE.PID
 The process-id of
 .Nm .
@@ -1757,6 +1764,20 @@ targets.
 Ignore differences in commands when deciding if target is out of date.
 This is useful if the command contains a value which always changes.
 If the number of commands change, though, the target will still be out of date.
+The same effect applies to any command line that uses the variable
+.Va .OODATE ,
+which can be used for that purpose even when not otherwise needed or desired:
+.Bd -literal -offset indent
+
+skip-compare-for-some:
+	@echo this will be compared
+	@echo this will not ${.OODATE:M.NOMETA_CMP}
+	@echo this will also be compared
+
+.Ed
+The
+.Cm \&:M
+pattern suppresses any expansion of the unwanted variable.
 .It Ic .NOPATH
 Do not search for the target in the directories specified by
 .Ic .PATH .
@@ -2008,6 +2029,10 @@ If no sources are specified, the
 .Ic .SILENT
 attribute is applied to every
 command in the file.
+.It Ic .STALE
+This target gets run when a dependency file contains stale entries, having
+.Va .ALLSRC
+set to the name of that dependency file.
 .It Ic .SUFFIXES
 Each source specifies a suffix to
 .Nm .
diff --git a/contrib/bmake/bmake.cat1 b/contrib/bmake/bmake.cat1
index 7800726..e446e89 100644
--- a/contrib/bmake/bmake.cat1
+++ b/contrib/bmake/bmake.cat1
@@ -565,6 +565,11 @@ VVAARRIIAABBLLEE AASSSSIIGGNNMMEENNTTSS
                      `MAKEFLAGS' is re-exported whenever `_._M_A_K_E_O_V_E_R_R_I_D_E_S' is
                      modified.
 
+     _._M_A_K_E_._P_A_T_H___F_I_L_E_M_O_N
+                     If bbmmaakkee was built with filemon(4) support, this is set
+                     to the path of the device node.  This allows makefiles to
+                     test for this support.
+
      _._M_A_K_E_._P_I_D       The process-id of bbmmaakkee.
 
      _._M_A_K_E_._P_P_I_D      The parent process-id of bbmmaakkee.
@@ -1106,7 +1111,19 @@ SSPPEECCIIAALL SSOOUURRCCEESS ((AATTTTRRIIBBUUTTEESS))
                Ignore differences in commands when deciding if target is out
                of date.  This is useful if the command contains a value which
                always changes.  If the number of commands change, though, the
-               target will still be out of date.
+               target will still be out of date.  The same effect applies to
+               any command line that uses the variable _._O_O_D_A_T_E, which can be
+               used for that purpose even when not otherwise needed or
+               desired:
+
+
+                     skip-compare-for-some:
+                             @echo this will be compared
+                             @echo this will not ${.OODATE:M.NOMETA_CMP}
+                             @echo this will also be compared
+
+               The ::MM pattern suppresses any expansion of the unwanted vari-
+               able.
 
      ..NNOOPPAATTHH   Do not search for the target in the directories specified by
                ..PPAATTHH.
@@ -1278,6 +1295,9 @@ SSPPEECCIIAALL TTAARRGGEETTSS
               sources are specified, the ..SSIILLEENNTT attribute is applied to every
               command in the file.
 
+     ..SSTTAALLEE   This target gets run when a dependency file contains stale
+              entries, having _._A_L_L_S_R_C set to the name of that dependency file.
+
      ..SSUUFFFFIIXXEESS
               Each source specifies a suffix to bbmmaakkee.  If no sources are
               specified, any previously specified suffixes are deleted.  It
@@ -1340,4 +1360,4 @@ BBUUGGSS
 
      There is no way of escaping a space character in a filename.
 
-NetBSD 5.1                     January 23, 2013                     NetBSD 5.1
+NetBSD 5.1                      March 30, 2013                      NetBSD 5.1
diff --git a/contrib/bmake/boot-strap b/contrib/bmake/boot-strap
index 7eff5f6..2193926 100755
--- a/contrib/bmake/boot-strap
+++ b/contrib/bmake/boot-strap
@@ -111,7 +111,7 @@
 #	Simon J. Gerraty <sjg@crufty.net>
 
 # RCSid:
-#	$Id: boot-strap,v 1.42 2013/01/25 20:20:33 sjg Exp $
+#	$Id: boot-strap,v 1.43 2013/03/02 18:55:23 sjg Exp $
 #
 #	@(#) Copyright (c) 2001 Simon J. Gerraty
 #
@@ -159,6 +159,9 @@ source_rc() {
 
 cmd_args="$@"
 
+# clear some things from the environment that we care about
+unset MAKEOBJDIR MAKEOBJDIRPREFIX
+
 # --install[-host-target] will set this
 INSTALL_PREFIX=
 # other things we pass to install step
diff --git a/contrib/bmake/configure b/contrib/bmake/configure
index f79b26f..a515b27 100755
--- a/contrib/bmake/configure
+++ b/contrib/bmake/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.64 for bmake 20121212.
+# Generated by GNU Autoconf 2.64 for bmake 20130303.
 #
 # Report bugs to <sjg@NetBSD.org>.
 #
@@ -549,8 +549,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='bmake'
 PACKAGE_TARNAME='bmake'
-PACKAGE_VERSION='20121212'
-PACKAGE_STRING='bmake 20121212'
+PACKAGE_VERSION='20130303'
+PACKAGE_STRING='bmake 20130303'
 PACKAGE_BUGREPORT='sjg@NetBSD.org'
 PACKAGE_URL=''
 
@@ -1220,7 +1220,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures bmake 20121212 to adapt to many kinds of systems.
+\`configure' configures bmake 20130303 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1281,7 +1281,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of bmake 20121212:";;
+     short | recursive ) echo "Configuration of bmake 20130303:";;
    esac
   cat <<\_ACEOF
 
@@ -1386,7 +1386,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-bmake configure 20121212
+bmake configure 20130303
 generated by GNU Autoconf 2.64
 
 Copyright (C) 2009 Free Software Foundation, Inc.
@@ -1907,7 +1907,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by bmake $as_me 20121212, which was
+It was created by bmake $as_me 20130303, which was
 generated by GNU Autoconf 2.64.  Invocation command line was
 
   $ $0 $@
@@ -6374,7 +6374,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by bmake $as_me 20121212, which was
+This file was extended by bmake $as_me 20130303, which was
 generated by GNU Autoconf 2.64.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -6434,7 +6434,7 @@ Report bugs to <sjg@NetBSD.org>."
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_version="\\
-bmake config.status 20121212
+bmake config.status 20130303
 configured by $0, generated by GNU Autoconf 2.64,
   with options \\"`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`\\"
 
diff --git a/contrib/bmake/configure.in b/contrib/bmake/configure.in
index 0caafdf..ba82a75 100644
--- a/contrib/bmake/configure.in
+++ b/contrib/bmake/configure.in
@@ -1,10 +1,10 @@
 dnl
 dnl RCSid:
-dnl	$Id: configure.in,v 1.46 2012/12/28 21:28:18 sjg Exp $
+dnl	$Id: configure.in,v 1.48 2013/03/04 21:25:57 sjg Exp $
 dnl
 dnl Process this file with autoconf to produce a configure script
 dnl
-AC_INIT([bmake], [20121212], [sjg@NetBSD.org])
+AC_INIT([bmake], [20130303], [sjg@NetBSD.org])
 AC_CONFIG_HEADER(config.h)
 
 dnl make srcdir absolute
diff --git a/contrib/bmake/dir.c b/contrib/bmake/dir.c
index 1c56ea3..7b12769 100644
--- a/contrib/bmake/dir.c
+++ b/contrib/bmake/dir.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: dir.c,v 1.65 2012/06/12 19:21:50 joerg Exp $	*/
+/*	$NetBSD: dir.c,v 1.67 2013/03/05 22:01:43 christos Exp $	*/
 
 /*
  * Copyright (c) 1988, 1989, 1990 The Regents of the University of California.
@@ -70,14 +70,14 @@
  */
 
 #ifndef MAKE_NATIVE
-static char rcsid[] = "$NetBSD: dir.c,v 1.65 2012/06/12 19:21:50 joerg Exp $";
+static char rcsid[] = "$NetBSD: dir.c,v 1.67 2013/03/05 22:01:43 christos Exp $";
 #else
 #include <sys/cdefs.h>
 #ifndef lint
 #if 0
 static char sccsid[] = "@(#)dir.c	8.2 (Berkeley) 1/2/94";
 #else
-__RCSID("$NetBSD: dir.c,v 1.65 2012/06/12 19:21:50 joerg Exp $");
+__RCSID("$NetBSD: dir.c,v 1.67 2013/03/05 22:01:43 christos Exp $");
 #endif
 #endif /* not lint */
 #endif
@@ -145,6 +145,7 @@ __RCSID("$NetBSD: dir.c,v 1.65 2012/06/12 19:21:50 joerg Exp $");
 #include "make.h"
 #include "hash.h"
 #include "dir.h"
+#include "job.h"
 
 /*
  *	A search path consists of a Lst of Path structures. A Path structure
@@ -1463,9 +1464,11 @@ Dir_MTime(GNode *gn, Boolean recheck)
 			 * so that we give that to the compiler.
 			 */
 			gn->path = bmake_strdup(fullName);
-			fprintf(stdout,
-				"%s: ignoring stale %s for %s, found %s\n",
-				progname, makeDependfile, gn->name, fullName);
+			if (!Job_RunTarget(".STALE", gn->fname))
+			    fprintf(stdout,
+				"%s: %s, %d: ignoring stale %s for %s, "
+				"found %s\n", progname, gn->fname, gn->lineno,
+				makeDependfile, gn->name, fullName);
 		    }
 		}
 	    }
diff --git a/contrib/bmake/job.c b/contrib/bmake/job.c
index 3049e60..a77eaab 100644
--- a/contrib/bmake/job.c
+++ b/contrib/bmake/job.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: job.c,v 1.165 2013/01/26 15:52:59 christos Exp $	*/
+/*	$NetBSD: job.c,v 1.172 2013/03/05 22:01:43 christos Exp $	*/
 
 /*
  * Copyright (c) 1988, 1989, 1990 The Regents of the University of California.
@@ -70,14 +70,14 @@
  */
 
 #ifndef MAKE_NATIVE
-static char rcsid[] = "$NetBSD: job.c,v 1.165 2013/01/26 15:52:59 christos Exp $";
+static char rcsid[] = "$NetBSD: job.c,v 1.172 2013/03/05 22:01:43 christos Exp $";
 #else
 #include <sys/cdefs.h>
 #ifndef lint
 #if 0
 static char sccsid[] = "@(#)job.c	8.2 (Berkeley) 3/19/94";
 #else
-__RCSID("$NetBSD: job.c,v 1.165 2013/01/26 15:52:59 christos Exp $");
+__RCSID("$NetBSD: job.c,v 1.172 2013/03/05 22:01:43 christos Exp $");
 #endif
 #endif /* not lint */
 #endif
@@ -142,6 +142,7 @@ __RCSID("$NetBSD: job.c,v 1.165 2013/01/26 15:52:59 christos Exp $");
 #include <sys/time.h>
 #include "wait.h"
 
+#include <assert.h>
 #include <errno.h>
 #include <fcntl.h>
 #if !defined(USE_SELECT) && defined(HAVE_POLL_H)
@@ -1245,8 +1246,10 @@ Job_CheckCommands(GNode *gn, void (*abortProc)(const char *, ...))
 	    static const char msg[] = ": don't know how to make";
 
 	    if (gn->flags & FROM_DEPEND) {
-		fprintf(stdout, "%s: ignoring stale %s for %s\n",
-			progname, makeDependfile, gn->name);
+		if (!Job_RunTarget(".STALE", gn->fname))
+		    fprintf(stdout, "%s: %s, %d: ignoring stale %s for %s\n",
+			progname, gn->fname, gn->lineno, makeDependfile,
+			gn->name);
 		return TRUE;
 	    }
 
@@ -2063,32 +2066,45 @@ Job_CatchOutput(void)
     (void)fflush(stdout);
 
     /* The first fd in the list is the job token pipe */
-    nready = poll(fds + 1 - wantToken, nfds - 1 + wantToken, POLL_MSEC);
+    do {
+	nready = poll(fds + 1 - wantToken, nfds - 1 + wantToken, POLL_MSEC);
+    } while (nready < 0 && errno == EINTR);
 
-    if (nready < 0 || readyfd(&childExitJob)) {
+    if (nready < 0)
+	Punt("poll: %s", strerror(errno));
+
+    if (nready > 0 && readyfd(&childExitJob)) {
 	char token = 0;
-	nready -= 1;
-	while (read(childExitJob.inPipe, &token, 1) == -1 && errno == EAGAIN)
-		continue;
-	if (token == DO_JOB_RESUME[0])
-	    /* Complete relay requested from our SIGCONT handler */
-	    JobRestartJobs();
-	Job_CatchChildren();
+	ssize_t count;
+	count = read(childExitJob.inPipe, &token, 1);
+	switch (count) {
+	case 0:
+	    Punt("unexpected eof on token pipe");
+	case -1:
+	    Punt("token pipe read: %s", strerror(errno));
+	case 1:
+	    if (token == DO_JOB_RESUME[0])
+		/* Complete relay requested from our SIGCONT handler */
+		JobRestartJobs();
+	    break;
+	default:
+	    abort();
+	}
+	--nready;
     }
 
-    if (nready <= 0)
-	return;
-
-    if (wantToken && readyfd(&tokenWaitJob))
-	nready--;
+    Job_CatchChildren();
+    if (nready == 0)
+	    return;
 
     for (i = 2; i < nfds; i++) {
 	if (!fds[i].revents)
 	    continue;
 	job = jobfds[i];
-	if (job->job_state != JOB_ST_RUNNING)
-	    continue;
-	JobDoOutput(job, FALSE);
+	if (job->job_state == JOB_ST_RUNNING)
+	    JobDoOutput(job, FALSE);
+	if (--nready == 0)
+		return;
     }
 }
 
@@ -2179,8 +2195,6 @@ Job_SetPrefix(void)
 void
 Job_Init(void)
 {
-    GNode         *begin;     /* node for commands to do at the very start */
-
     /* Allocate space for all the job info */
     job_table = bmake_malloc(maxJobs * sizeof *job_table);
     memset(job_table, 0, maxJobs * sizeof *job_table);
@@ -2256,15 +2270,7 @@ Job_Init(void)
     ADDSIG(SIGCONT, JobContinueSig)
 #undef ADDSIG
 
-    begin = Targ_FindNode(".BEGIN", TARG_NOCREATE);
-
-    if (begin != NULL) {
-	JobRun(begin);
-	if (begin->made == ERROR) {
-	    PrintOnError(begin, "\n\nStop.");
-	    exit(1);
-	}
-    }
+    (void)Job_RunTarget(".BEGIN", NULL);
     postCommands = Targ_FindNode(".END", TARG_CREATE);
 }
 
@@ -2930,6 +2936,38 @@ Job_TokenWithdraw(void)
     return TRUE;
 }
 
+/*-
+ *-----------------------------------------------------------------------
+ * Job_RunTarget --
+ *	Run the named target if found. If a filename is specified, then
+ *	set that to the sources.
+ *
+ * Results:
+ *	None
+ *
+ * Side Effects:
+ * 	exits if the target fails.
+ *
+ *-----------------------------------------------------------------------
+ */
+Boolean
+Job_RunTarget(const char *target, const char *fname) {
+    GNode *gn = Targ_FindNode(target, TARG_NOCREATE);
+
+    if (gn == NULL)
+	return FALSE;
+
+    if (fname)
+	Var_Set(ALLSRC, fname, gn, 0);
+
+    JobRun(gn);
+    if (gn->made == ERROR) {
+	PrintOnError(gn, "\n\nStop.");
+	exit(1);
+    }
+    return TRUE;
+}
+
 #ifdef USE_SELECT
 int
 emul_poll(struct pollfd *fd, int nfd, int timeout)
diff --git a/contrib/bmake/job.h b/contrib/bmake/job.h
index 560b70b..5323b10 100644
--- a/contrib/bmake/job.h
+++ b/contrib/bmake/job.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: job.h,v 1.40 2010/09/13 15:36:57 sjg Exp $	*/
+/*	$NetBSD: job.h,v 1.41 2013/03/05 22:01:44 christos Exp $	*/
 
 /*
  * Copyright (c) 1988, 1989, 1990 The Regents of the University of California.
@@ -268,5 +268,6 @@ void Job_TokenReturn(void);
 Boolean Job_TokenWithdraw(void);
 void Job_ServerStart(int, int, int);
 void Job_SetPrefix(void);
+Boolean Job_RunTarget(const char *, const char *);
 
 #endif /* _JOB_H_ */
diff --git a/contrib/bmake/main.c b/contrib/bmake/main.c
index f4bd721..84c6935 100644
--- a/contrib/bmake/main.c
+++ b/contrib/bmake/main.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: main.c,v 1.205 2013/01/26 15:53:00 christos Exp $	*/
+/*	$NetBSD: main.c,v 1.210 2013/03/23 05:31:29 sjg Exp $	*/
 
 /*
  * Copyright (c) 1988, 1989, 1990, 1993
@@ -69,7 +69,7 @@
  */
 
 #ifndef MAKE_NATIVE
-static char rcsid[] = "$NetBSD: main.c,v 1.205 2013/01/26 15:53:00 christos Exp $";
+static char rcsid[] = "$NetBSD: main.c,v 1.210 2013/03/23 05:31:29 sjg Exp $";
 #else
 #include <sys/cdefs.h>
 #ifndef lint
@@ -81,7 +81,7 @@ __COPYRIGHT("@(#) Copyright (c) 1988, 1989, 1990, 1993\
 #if 0
 static char sccsid[] = "@(#)main.c	8.3 (Berkeley) 3/19/94";
 #else
-__RCSID("$NetBSD: main.c,v 1.205 2013/01/26 15:53:00 christos Exp $");
+__RCSID("$NetBSD: main.c,v 1.210 2013/03/23 05:31:29 sjg Exp $");
 #endif
 #endif /* not lint */
 #endif
@@ -119,9 +119,7 @@ __RCSID("$NetBSD: main.c,v 1.205 2013/01/26 15:53:00 christos Exp $");
 #include <sys/resource.h>
 #include <signal.h>
 #include <sys/stat.h>
-#ifdef MAKE_NATIVE
 #include <sys/utsname.h>
-#endif
 #include "wait.h"
 
 #include <errno.h>
@@ -768,7 +766,7 @@ MakeMode(const char *mode)
 	}
 #if USE_META
 	if (strstr(mode, "meta"))
-	    meta_init(mode);
+	    meta_mode_init(mode);
 #endif
     }
     if (mp)
@@ -813,9 +811,7 @@ main(int argc, char **argv)
 	static char defsyspath[] = _PATH_DEFSYSPATH;
 	char found_path[MAXPATHLEN + 1];	/* for searching for sys.mk */
 	struct timeval rightnow;		/* to initialize random seed */
-#ifdef MAKE_NATIVE
 	struct utsname utsname;
-#endif
 
 	/* default to writing debug to stderr */
 	debug_file = stderr;
@@ -834,7 +830,7 @@ main(int argc, char **argv)
 		progname++;
 	else
 		progname = argv[0];
-#ifdef RLIMIT_NOFILE
+#if defined(MAKE_NATIVE) || (defined(HAVE_SETRLIMIT) && defined(RLIMIT_NOFILE))
 	/*
 	 * get rid of resource limit on file descriptors
 	 */
@@ -848,6 +844,12 @@ main(int argc, char **argv)
 	}
 #endif
 
+	if (uname(&utsname) == -1) {
+	    (void)fprintf(stderr, "%s: uname failed (%s).\n", progname,
+		strerror(errno));
+	    exit(2);
+	}
+
 	/*
 	 * Get the name of this type of MACHINE from utsname
 	 * so we can share an executable for similar machines.
@@ -858,11 +860,6 @@ main(int argc, char **argv)
 	 */
 	if (!machine) {
 #ifdef MAKE_NATIVE
-	    if (uname(&utsname) == -1) {
-		(void)fprintf(stderr, "%s: uname failed (%s).\n", progname,
-		    strerror(errno));
-		exit(2);
-	    }
 	    machine = utsname.machine;
 #else
 #ifdef MAKE_MACHINE
@@ -892,6 +889,7 @@ main(int argc, char **argv)
 	 */
 	Var_Init();		/* Initialize the lists of variables for
 				 * parsing arguments */
+	Var_Set(".MAKE.OS", utsname.sysname, VAR_GLOBAL, 0);
 	Var_Set("MACHINE", machine, VAR_GLOBAL, 0);
 	Var_Set("MACHINE_ARCH", machine_arch, VAR_GLOBAL, 0);
 #ifdef MAKE_VERSION
@@ -987,6 +985,9 @@ main(int argc, char **argv)
 	}
 	Job_SetPrefix();
 
+#ifdef USE_META
+	meta_init();
+#endif
 	/*
 	 * First snag any flags out of the MAKE environment variable.
 	 * (Note this is *not* MAKEFLAGS since /bin/make uses that and it's
@@ -1697,7 +1698,7 @@ Finish(int errors)
 }
 
 /*
- * enunlink --
+ * eunlink --
  *	Remove a file carefully, avoiding directories.
  */
 int
diff --git a/contrib/bmake/make.1 b/contrib/bmake/make.1
index 198410c..8c38682 100644
--- a/contrib/bmake/make.1
+++ b/contrib/bmake/make.1
@@ -1,4 +1,4 @@
-.\"	$NetBSD: make.1,v 1.210 2013/01/27 18:52:01 sjg Exp $
+.\"	$NetBSD: make.1,v 1.213 2013/03/31 05:49:51 sjg Exp $
 .\"
 .\" Copyright (c) 1990, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -29,7 +29,7 @@
 .\"
 .\"	from: @(#)make.1	8.4 (Berkeley) 3/19/94
 .\"
-.Dd January 23, 2013
+.Dd March 30, 2013
 .Dt MAKE 1
 .Os
 .Sh NAME
@@ -874,6 +874,13 @@ by appending their names to
 is re-exported whenever
 .Ql Va .MAKEOVERRIDES
 is modified.
+.It Va .MAKE.PATH_FILEMON
+If
+.Nm
+was built with 
+.Xr filemon 4
+support, this is set to the path of the device node.
+This allows makefiles to test for this support.
 .It Va .MAKE.PID
 The process-id of
 .Nm .
@@ -1757,6 +1764,20 @@ targets.
 Ignore differences in commands when deciding if target is out of date.
 This is useful if the command contains a value which always changes.
 If the number of commands change, though, the target will still be out of date.
+The same effect applies to any command line that uses the variable
+.Va .OODATE ,
+which can be used for that purpose even when not otherwise needed or desired:
+.Bd -literal -offset indent
+
+skip-compare-for-some:
+	@echo this will be compared
+	@echo this will not ${.OODATE:M.NOMETA_CMP}
+	@echo this will also be compared
+
+.Ed
+The
+.Cm \&:M
+pattern suppresses any expansion of the unwanted variable.
 .It Ic .NOPATH
 Do not search for the target in the directories specified by
 .Ic .PATH .
@@ -2008,6 +2029,10 @@ If no sources are specified, the
 .Ic .SILENT
 attribute is applied to every
 command in the file.
+.It Ic .STALE
+This target gets run when a dependency file contains stale entries, having
+.Va .ALLSRC
+set to the name of that dependency file.
 .It Ic .SUFFIXES
 Each source specifies a suffix to
 .Nm .
diff --git a/contrib/bmake/make.h b/contrib/bmake/make.h
index 384d109..c9c72bc 100644
--- a/contrib/bmake/make.h
+++ b/contrib/bmake/make.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: make.h,v 1.89 2012/06/12 19:21:51 joerg Exp $	*/
+/*	$NetBSD: make.h,v 1.90 2013/02/25 01:57:14 dholland Exp $	*/
 
 /*
  * Copyright (c) 1988, 1989, 1990, 1993
@@ -103,7 +103,7 @@
 	((__GNUC__ == (x) && __GNUC_MINOR__ >= (y)) ||			\
 	 (__GNUC__ > (x)))
 #else /* defined(__GNUC__) */
-#define	MAKE_GNUC_PREREQx, y)	0
+#define	MAKE_GNUC_PREREQ(x, y)	0
 #endif /* defined(__GNUC__) */
 
 #if MAKE_GNUC_PREREQ(2, 7)
diff --git a/contrib/bmake/meta.c b/contrib/bmake/meta.c
index d6110d9..1bbbe33 100644
--- a/contrib/bmake/meta.c
+++ b/contrib/bmake/meta.c
@@ -1,4 +1,4 @@
-/*      $NetBSD: meta.c,v 1.26 2013/01/19 04:23:37 sjg Exp $ */
+/*      $NetBSD: meta.c,v 1.29 2013/03/31 05:49:51 sjg Exp $ */
 
 /*
  * Implement 'meta' mode.
@@ -539,8 +539,24 @@ boolValue(char *s)
     return TRUE;
 }
 
+/*
+ * Initialization we need before reading makefiles.
+ */
 void
-meta_init(const char *make_mode)
+meta_init()
+{
+#ifdef USE_FILEMON
+	/* this allows makefiles to test if we have filemon support */
+	Var_Set(".MAKE.PATH_FILEMON", _PATH_FILEMON, VAR_GLOBAL, 0);
+#endif
+}
+
+
+/*
+ * Initialization we need after reading makefiles.
+ */
+void
+meta_mode_init(const char *make_mode)
 {
     static int once = 0;
     char *cp;
@@ -1037,6 +1053,7 @@ meta_oodate(GNode *gn, Boolean oodate)
 			    char *tp = Lst_Datum(ln);
 			    Lst_Remove(missingFiles, ln);
 			    free(tp);
+			    ln = NULL;	/* we're done with it */
 			}
 		    }
 		    break;
@@ -1196,17 +1213,19 @@ meta_oodate(GNode *gn, Boolean oodate)
 		    oodate = TRUE;
 		} else {
 		    char *cmd = (char *)Lst_Datum(ln);
-
-		    if (!needOODATE) {
-			if (strstr(cmd, "$?"))
-			    needOODATE = TRUE;
-			else if ((cp = strstr(cmd, ".OODATE"))) {
-			    /* check for $[{(].OODATE[)}] */
-			    if (cp > cmd + 2 && cp[-2] == '$')
-				needOODATE = TRUE;
-			}
-			if (needOODATE && DEBUG(META))
-			    fprintf(debug_file, "%s: %d: cannot compare commands using .OODATE\n", fname, lineno);
+		    Boolean hasOODATE = FALSE;
+
+		    if (strstr(cmd, "$?"))
+			hasOODATE = TRUE;
+		    else if ((cp = strstr(cmd, ".OODATE"))) {
+			/* check for $[{(].OODATE[:)}] */
+			if (cp > cmd + 2 && cp[-2] == '$')
+			    hasOODATE = TRUE;
+		    }
+		    if (hasOODATE) {
+			needOODATE = TRUE;
+			if (DEBUG(META))
+			    fprintf(debug_file, "%s: %d: cannot compare command using .OODATE\n", fname, lineno);
 		    }
 		    cmd = Var_Subst(NULL, cmd, gn, TRUE);
 
@@ -1235,7 +1254,7 @@ meta_oodate(GNode *gn, Boolean oodate)
 			if (buf[x - 1] == '\n')
 			    buf[x - 1] = '\0';
 		    }
-		    if (!needOODATE &&
+		    if (!hasOODATE &&
 			!(gn->type & OP_NOMETA_CMP) &&
 			strcmp(p, cmd) != 0) {
 			if (DEBUG(META))
diff --git a/contrib/bmake/meta.h b/contrib/bmake/meta.h
index 1ce01ca..57c73ca9 100644
--- a/contrib/bmake/meta.h
+++ b/contrib/bmake/meta.h
@@ -1,4 +1,4 @@
-/*      $NetBSD: meta.h,v 1.2 2011/03/30 22:03:49 sjg Exp $ */
+/*      $NetBSD: meta.h,v 1.3 2013/03/23 05:31:29 sjg Exp $ */
 
 /*
  * Things needed for 'meta' mode.
@@ -41,7 +41,8 @@ typedef struct BuildMon {
 extern Boolean useMeta;
 
 struct Job;				/* not defined yet */
-void meta_init(const char *);
+void meta_init(void);
+void meta_mode_init(const char *);
 void meta_job_start(struct Job *, GNode *);
 void meta_job_child(struct Job *);
 void meta_job_error(struct Job *, GNode *, int, int);
diff --git a/contrib/bmake/mk/ChangeLog b/contrib/bmake/mk/ChangeLog
index fee1c90..0f49477 100644
--- a/contrib/bmake/mk/ChangeLog
+++ b/contrib/bmake/mk/ChangeLog
@@ -1,3 +1,71 @@
+2013-03-30  Simon J. Gerraty  <sjg@bad.crufty.net>
+
+	* meta2deps.py (MetaFile.__init__): ensure self.cwd is initialized.
+	* install-mk (MK_VERSION): bump version
+
+2013-03-21  Simon J. Gerraty  <sjg@bad.crufty.net>
+
+	* install-mk (MK_VERSION): bump version
+	* gendirdeps.mk: do not apply :tA to DPADD entries, since we lose
+	  any trailing /., rather apply :tA only when needed.
+	* gendirdeps.mk: better mimic meta2deps handling of .dirdep files.
+	* meta.stage.mk (LN_CP_SCRIPT): Add LnCp to do the ln||cp dance
+	  consistently.
+	* dirdeps.mk: better describe the dance in sys.mk for TARGET_SPEC.
+	
+2013-03-18  Simon J. Gerraty  <sjg@bad.crufty.net>
+
+	* gendirdeps.mk: revert the dance around .MAKE.DEPENDFILE_DEFAULT
+	  it is simpler to just not update when say building for "host"
+	  (where we know we apply filters to DIRDEPS), and using a
+	  non-machine qualified dependfile.
+
+2013-03-16  Simon J. Gerraty  <sjg@bad.crufty.net>
+
+	* dirdeps.mk: improve DIRDEPS filtering by allowing DEP_SKIP_DIR
+	  and DEP_DIRDEPS_FILTER to vary by DEP_MACHINE and DEP_TARGET_SPEC
+	* gendirdeps.mk: ensure _objroot has trailing / if it needs it.
+	* meta2deps.py: if machine is "host", then also trim
+	  self.host_target from any OBJROOTS.
+	
+
+2013-03-11  Simon J. Gerraty  <sjg@bad.crufty.net>
+
+	* gendirdeps.mk: if .MAKE.DEPENDFILE_DEFAULT is not machine
+	  qualified but _DEPENDFILE is, and .MAKE.DEPENDFILE_DEFAULT exists
+	  but _DEPENDFILE does not, compare the new _DEPENDFILE against
+	  .MAKE.DEPENDFILE_DEFAULT and discard if the same.
+
+2013-03-08  Simon J. Gerraty  <sjg@bad.crufty.net>
+
+	* meta.stage.mk: use STAGE_TARGETS to control .ORDER
+	  and hook to all: via staging:
+
+2013-03-07  Simon J. Gerraty  <sjg@bad.crufty.net>
+
+	* sys.dependfile.mk (.MAKE.DEPENDFILE_DEFAULT): 
+	  use a separate variable for the default .MAKE.DEPENDFILE value
+	  so that it can be controlled independently of
+	  .MAKE.DEPENDFILE_PREFERENCE
+
+	* meta.stage.mk: throw error if cp fails etc.
+	  Stage*() return early if passed no args.
+	  .ORDER stage_*
+
+2013-03-03  Simon J. Gerraty  <sjg@bad.crufty.net>
+
+	* install-mk (MK_VERSION): bump version
+	* gendirdeps.mk: handle multiple M2D_OBJROOTS better.
+
+2013-02-10  Simon J. Gerraty  <sjg@bad.crufty.net>
+
+	* install-mk (MK_VERSION): bump version to 20130210
+	* import latest dirdeps.mk, gendirdeps.mk and meta2deps.py 
+	  from Juniper. 
+	  o dirdeps.mk now fully supports TARGET_SPEC consisting of more
+	    than just MACHINE.
+	  o no longer use DEP_MACHINE from Makefile.depend* so remove it.
+	
 2013-01-23  Simon J. Gerraty  <sjg@bad.crufty.net>
 
 	* install-mk (MK_VERSION): bump version to 20130123
diff --git a/contrib/bmake/mk/dirdeps.mk b/contrib/bmake/mk/dirdeps.mk
index 9f051e9..e812416 100644
--- a/contrib/bmake/mk/dirdeps.mk
+++ b/contrib/bmake/mk/dirdeps.mk
@@ -1,6 +1,7 @@
-# $Id: dirdeps.mk,v 1.23 2012/11/06 05:44:03 sjg Exp $
+# $Id: dirdeps.mk,v 1.28 2013/03/25 21:11:43 sjg Exp $
 
-# Copyright (c) 2010-2012, Juniper Networks, Inc.
+# Copyright (c) 2010-2013, Juniper Networks, Inc.
+# All rights reserved.
 # 
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions 
@@ -33,21 +34,31 @@
 # This is what we do with DIRDEPS
 
 # DIRDEPS:
-#	This is a list of directories - relative to SRCTOP, it is only
-#	of interest to .MAKE.LEVEL 0.
+#	This is a list of directories - relative to SRCTOP, it is
+#	normally only of interest to .MAKE.LEVEL 0.
 #	In some cases the entry may be qualified with a .<machine>
-#	suffix, for example to force building something for the pseudo
+#	or .<target_spec> suffix (see TARGET_SPEC_VARS below),
+#	for example to force building something for the pseudo
 #	machines "host" or "common" regardless of current ${MACHINE}.
-#	All unqualified entries end up being qualified with .${MACHINE}
-#	and _DIRDEPS_USE below, uses the suffix to set MACHINE
+#	
+#	All unqualified entries end up being qualified with .${TARGET_SPEC}
+#	and partially qualified (if TARGET_SPEC_VARS has multiple
+#	entries) are also expanded to a full .<target_spec>.
+#	The  _DIRDEPS_USE target uses the suffix to set TARGET_SPEC
 #	correctly when visiting each entry.
 #
-#	Each entry is also converted into a set of paths to look for
-#	Makefile.depend.<machine> to learn the dependencies of each.
-#	Each Makefile.depend.<machine> sets DEP_RELDIR to be the
+#	The fully qualified directory entries are used to construct a
+#	dependency graph that will drive the build later.
+#	
+#	Also, for each fully qualified directory target, we will search
+#	using ${.MAKE.DEPENDFILE_PREFERENCE} to find additional
+#	dependencies.  We use Makefile.depend (default value for
+#	.MAKE.DEPENDFILE_PREFIX) to refer to these makefiles to
+#	distinguish them from others.
+#	
+#	Each Makefile.depend file sets DEP_RELDIR to be the
 #	the RELDIR (path relative to SRCTOP) for its directory, and
-#	DEP_MACHINE to its suffix (<machine>), further since
-#	each Makefile.depend.<machine> includes dirdeps.mk, this
+#	since each Makefile.depend file includes dirdeps.mk, this
 #	processing is recursive and results in .MAKE.LEVEL 0 learning the
 #	dependencies of the tree wrt the initial directory (_DEP_RELDIR).
 #
@@ -55,38 +66,49 @@
 #	Indicates whether .MAKE.LEVEL 0 builds anything:
 #	if "no" sub-makes are used to build everything,
 #	if "yes" sub-makes are only used to build for other machines.
+#	It is best to use "no", but this can require fixing some
+#	makefiles to not do anything at .MAKE.LEVEL 0.
 #
 # TARGET_SPEC_VARS
-#	All the description above (and below) assumes <machine> is the
-#	only data needed to control the build.
-#	This is not always the case.  So in addition to setting
-#	MACHINE in the build environment we set TARGET_SPEC which is
-#	composed of the values of TARGET_SPEC_VARS separated by
-#	commas.  The default is just MACHINE.
+#	The default value is just MACHINE, and for most environments
+#	this is sufficient.  The _DIRDEPS_USE target actually sets
+#	both MACHINE and TARGET_SPEC to the suffix of the current
+#	target so that in the general case TARGET_SPEC can be ignored.
 #
-#	If more that MACHINE is needed then sys.mk needs to decompose
+#	If more than MACHINE is needed then sys.mk needs to decompose
 #	TARGET_SPEC and set the relevant variables accordingly.
-#	It is important that MACHINE be included in TARGET_SPEC_VARS
-#	since if there is more the value passed as MACHINE will infact
-#	be the TARGET_SPEC.
+#	It is important that MACHINE be included in and actually be
+#	the first member of TARGET_SPEC_VARS.  This allows other
+#	variables to be considered optional, and some of the treatment
+#	below relies on MACHINE being the first entry.
 #	Note: TARGET_SPEC cannot contain any '.'s so the target
-#	tripple used by compiler folk won't work (directly anyway).
+#	triple used by compiler folk won't work (directly anyway).
 #
 #	For example:
 #
-#		# variables other than MACHINE might be optional
+#		# Always list MACHINE first, 
+#		# other variables might be optional.
 #		TARGET_SPEC_VARS = MACHINE TARGET_OS
 #		.if ${TARGET_SPEC:Uno:M*,*} != ""
 #		_tspec := ${TARGET_SPEC:S/,/ /g}
 #		MACHINE := ${_tspec:[1]}
 #		TARGET_OS := ${_tspec:[2]}
 #		# etc.
+#		# We need to stop that TARGET_SPEC affecting any submakes
+#		# and deal with MACHINE=${TARGET_SPEC} in the environment.
+#		TARGET_SPEC =
+#		# export but do not track
+#		.export-env TARGET_SPEC 
+#		.export ${TARGET_SPEC_VARS}
 #		.for v in ${TARGET_SPEC_VARS:O:u}
 #		.if empty($v)
 #		.undef $v
 #		.endif
 #		.endfor
 #		.endif
+#		# make sure we know what TARGET_SPEC is
+#		# as we may need it to find Makefile.depend*
+#		TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,}
 #	
 
 .if ${.MAKE.LEVEL} == 0
@@ -100,14 +122,48 @@
 # do some setup we only need once
 _CURDIR ?= ${.CURDIR}
 
+# make sure these are empty to start with
+_DEP_TARGET_SPEC =
+_DIRDEP_CHECKED =
+
 # If TARGET_SPEC_VARS is other than just MACHINE
 # it should be set by sys.mk or similar by now.
 # TARGET_SPEC must not contain any '.'s.
 TARGET_SPEC_VARS ?= MACHINE
+# this is what we started with
 TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,}
+# this is what we mostly use below
+DEP_TARGET_SPEC = ${TARGET_SPEC_VARS:S,^,DEP_,:@v@${$v:U}@:ts,}
+# make sure we have defaults
+.for v in ${TARGET_SPEC_VARS}
+DEP_$v ?= ${$v}
+.endfor
+
+.if ${TARGET_SPEC_VARS:[#]} > 1
+# Ok, this gets more complex (putting it mildly).
+# In order to stay sane, we need to ensure that all the build_dirs
+# we compute below are fully qualified wrt DEP_TARGET_SPEC.
+# The makefiles may only partially specify (eg. MACHINE only),
+# so we need to construct a set of modifiers to fill in the gaps.
+# jot 10 should output 1 2 3 .. 10
+JOT ?= jot
+_tspec_x := ${${JOT} ${TARGET_SPEC_VARS:[#]}:L:sh}
+# this handles unqualified entries
+M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.${DEP_TARGET_SPEC};
+# there needs to be at least one item missing for these to make sense
+.for i in ${_tspec_x:[2..-1]}
+_tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,}
+_tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$${DEP_$v}@:ts,}
+M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i};
+.endfor
+.else
+# A harmless? default.
+M_dep_qual_fixes = U
+.endif
 
 .if !defined(.MAKE.DEPENDFILE_PREFERENCE)
-# this makes the logic below neater?
+# .MAKE.DEPENDFILE_PREFERENCE makes the logic below neater?
+# you really want this set by sys.mk or similar
 .MAKE.DEPENDFILE_PREFERENCE = ${_CURDIR}/${.MAKE.DEPENDFILE:T}
 .if ${.MAKE.DEPENDFILE:E} == "${TARGET_SPEC}"
 .if ${TARGET_SPEC} != ${MACHINE}
@@ -118,12 +174,12 @@ TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,}
 .endif
 
 _default_dependfile := ${.MAKE.DEPENDFILE_PREFERENCE:[1]:T}
-_machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:M*.${TARGET_SPEC}} \
-	${.MAKE.DEPENDFILE_PREFERENCE:M*.${MACHINE}}
+_machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:T:M*${MACHINE}*}
 
 # for machine specific dependfiles we require ${MACHINE} to be at the end
 # also for the sake of sanity we require a common prefix
 .if !defined(.MAKE.DEPENDFILE_PREFIX)
+# knowing .MAKE.DEPENDFILE_PREFIX helps
 .if !empty(_machine_dependfiles)
 .MAKE.DEPENDFILE_PREFIX := ${_machine_dependfiles:[1]:T:R}
 .else
@@ -133,24 +189,45 @@ _machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:M*.${TARGET_SPEC}} \
 
 
 # this is how we identify non-machine specific dependfiles
-N_notmachine := ${.MAKE.DEPENDFILE_PREFERENCE:E:N${TARGET_SPEC}:N${MACHINE}:${M_ListToSkip}}
+N_notmachine := ${.MAKE.DEPENDFILE_PREFERENCE:E:N*${MACHINE}*:${M_ListToSkip}}
 
 .endif				# !target(_DIRDEP_USE)
 
+# if we were included recursively _DEP_TARGET_SPEC should be valid.
+.if empty(_DEP_TARGET_SPEC)
+# we may or may not have included a dependfile yet
 _last_dependfile := ${.MAKE.MAKEFILES:M*/${.MAKE.DEPENDFILE_PREFIX}*:[-1]}
+.if !empty(_debug_reldir)
+.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _last_dependfile='${_last_dependfile}'
+.endif
 
-# Note: if a makefile is read many times, the above
-# will not work, so we also test for DEP_MACHINE==depend below.
-.if empty(_last_dependfile)
-# we haven't included one yet
-DEP_MACHINE ?= ${TARGET_MACHINE:U${TARGET_SPEC}}
-# else it should be correctly set by ${.MAKE.DEPENDFILE}
-.elif ${_last_dependfile:E:${N_notmachine}} == "" || ${DEP_MACHINE:Uno:${N_notmachine}} == ""
-# don't rely on manually maintained files to be correct
-DEP_MACHINE := ${_DEP_MACHINE:U${TARGET_SPEC}}
+.if empty(_last_dependfile) || ${_last_dependfile:E:${N_notmachine}} == ""
+# this is all we have to work with
+DEP_MACHINE = ${TARGET_MACHINE:U${MACHINE}}
+_DEP_TARGET_SPEC := ${DEP_TARGET_SPEC}
 .else
-# just in case
-DEP_MACHINE ?= ${_last_dependfile:E}
+_DEP_TARGET_SPEC = ${_last_dependfile:${M_dep_qual_fixes:ts:}:E}
+.endif
+.if !empty(_last_dependfile)
+# record that we've read dependfile for this
+_DIRDEP_CHECKED += ${_CURDIR}.${TARGET_SPEC}
+.endif
+.endif
+
+# by now _DEP_TARGET_SPEC should be set, parse it.
+.if ${TARGET_SPEC_VARS:[#]} > 1
+# we need to parse DEP_MACHINE may or may not contain more info
+_tspec := ${_DEP_TARGET_SPEC:S/,/ /g}
+.for i in ${_tspec_x}
+DEP_${TARGET_SPEC_VARS:[$i]} := ${_tspec:[$i]}
+.endfor
+.for v in ${TARGET_SPEC_VARS:O:u}
+.if empty(DEP_$v)
+.undef DEP_$v
+.endif
+.endfor
+.else
+DEP_MACHINE := ${_DEP_TARGET_SPEC}
 .endif
 
 # pickup customizations
@@ -179,17 +256,18 @@ _DEP_RELDIR := ${DEP_RELDIR}
 SKIP_HOSTDIR ?=
 
 NSkipHostDir = ${SKIP_HOSTDIR:N*.host:S,$,.host,:N.host:${M_ListToSkip}}
-NSkipHostDep = ${SKIP_HOSTDIR:R:@d@*/$d*.host@:${M_ListToSkip}}
 
 # things we always skip
 # SKIP_DIRDEPS allows for adding entries on command line.
 SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS}
+SKIP_DIR.host += ${SKIP_HOSTDIR}
 
-.ifdef HOSTPROG
-SKIP_DIR += ${SKIP_HOSTDIR}
-.endif
+DEP_SKIP_DIR = ${SKIP_DIR} \
+	${SKIP_DIR.${DEP_TARGET_SPEC}:U} \
+	${SKIP_DIR.${DEP_MACHINE}:U} \
+	${SKIP_DIRDEPS.${DEP_MACHINE}:U}
 
-NSkipDir = ${SKIP_DIR:${M_ListToSkip}}
+NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}}
 
 .if defined(NO_DIRDEPS) || defined(NODIRDEPS)
 # confine ourselves to the original dir
@@ -198,12 +276,15 @@ DIRDEPS_FILTER += M${_DEP_RELDIR}*
 
 # we supress SUBDIR when visiting the leaves
 # we assume sys.mk will set MACHINE_ARCH
+# you can add extras to DIRDEP_USE_ENV
+# if there is no makefile in the target directory, we skip it.
 _DIRDEP_USE:	.USE .MAKE
 	@for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \
 		test -s ${.TARGET:R}/$$m || continue; \
 		echo "${TRACER}Checking ${.TARGET:R} for ${.TARGET:E} ..."; \
+		MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \
 		TARGET_SPEC=${.TARGET:E} \
-		MACHINE=${.TARGET:E} MACHINE_ARCH= NO_SUBDIR=1 \
+		MACHINE=${.TARGET:E} \
 		${.MAKE} -C ${.TARGET:R} || exit 1; \
 		break; \
 	done
@@ -260,7 +341,7 @@ _this_dir := ${SRCTOP}/${DEP_RELDIR}
 _dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc
 .-include "${_dep_hack}"
 
-.if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_MACHINE} != ${TARGET_SPEC}
+.if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC}
 # this should be all
 _machines := ${DEP_MACHINE}
 .else
@@ -275,17 +356,23 @@ _machines += host
 _machines := ${_machines:O:u}
 .endif
 
-# reset these each time through
+.if ${TARGET_SPEC_VARS:[#]} > 1
+# we need to tweak _machines
+_dm := ${DEP_MACHINE}
+_machines := ${_machines:@DEP_MACHINE@${DEP_TARGET_SPEC}@}
+DEP_MACHINE := ${_dm}
+.endif
+
+# reset each time through
 _build_dirs =
-_depdir_files =
 
 .if ${DEP_RELDIR} == ${_DEP_RELDIR}
 # pickup other machines for this dir if necessary
 .if ${BUILD_AT_LEVEL0:Uyes} == "no"
 _build_dirs += ${_machines:@m@${_CURDIR}.$m@}
 .else
-_build_dirs += ${_machines:N${DEP_MACHINE}:@m@${_CURDIR}.$m@}
-.if ${DEP_MACHINE} == ${TARGET_SPEC}
+_build_dirs += ${_machines:N${DEP_TARGET_SPEC}:@m@${_CURDIR}.$m@}
+.if ${DEP_TARGET_SPEC} == ${TARGET_SPEC}
 # pickup local dependencies now
 .-include <.depend>
 .endif
@@ -293,15 +380,23 @@ _build_dirs += ${_machines:N${DEP_MACHINE}:@m@${_CURDIR}.$m@}
 .endif
 
 .if !empty(_debug_reldir)
-.info ${DEP_RELDIR}.${DEP_MACHINE}: _last_dependfile='${_last_dependfile}'
-.info ${DEP_RELDIR}.${DEP_MACHINE}: DIRDEPS='${DIRDEPS}'
-.info ${DEP_RELDIR}.${DEP_MACHINE}: _machines='${_machines}' 
+.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}'
+.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}' 
 .endif
 
 .if !empty(DIRDEPS)
+# these we reset each time through as they can depend on DEP_MACHINE
+DEP_DIRDEPS_FILTER = \
+	${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \
+	${DIRDEPS_FILTER.${DEP_MACHINE}:U} \
+	${DIRDEPS_FILTER:U} 
+.if empty(DEP_DIRDEPS_FILTER)
+# something harmless
+DEP_DIRDEPS_FILTER = U
+.endif
 
 # this is what we start with
-__depdirs := ${DIRDEPS:${NSkipDir}:${DIRDEPS_FILTER:ts:}:O:u:@d@${SRCTOP}/$d@}
+__depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:O:u:@d@${SRCTOP}/$d@}
 
 # some entries may be qualified with .<machine> 
 # the :M*/*/*.* just tries to limit the dirs we check to likely ones.
@@ -327,26 +422,8 @@ _build_dirs += \
 	${__qual_depdirs:N*.host} \
 	${_machines:@m@${__unqual_depdirs:@d@$d.$m@}@}
 
-_build_dirs := ${_build_dirs:O:u}
-
-# this is where we will pick up more dependencies from
-# the inner inline loops look complex, but save a significant
-# amount of memory compared to a .for loop.
-_depdir_files =
-.for d in ${_build_dirs}
-.if exists($d)
-# easy, we're building for ${MACHINE}
-_depdir_files += ${.MAKE.DEPENDFILE_PREFERENCE:T:@m@${exists($d/$m):?$d/$m:}@:[1]}
-.elif exists(${d:R}) && ${d:R:T} == ${d:T:R}
-# a little more complex - building for another machine
-# we will ensure the file is qualified with a machine
-# so that if necessary _DEP_MACHINE can be set below
-_depdir_files += ${.MAKE.DEPENDFILE_PREFERENCE:T:S,.${TARGET_SPEC}$,.${d:E},:S,.${MACHINE}$,.${d:E},:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]:@m@${"${m:M*.${d:E}}":?$m:$m.${d:E}}@}
-.endif
-.endfor
-
-# clean up
-_depdir_files := ${_depdir_files:O:u}
+# qualify everything now
+_build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u}
 
 .endif				# empty DIRDEPS
 
@@ -360,48 +437,57 @@ dirdeps: ${_build_dirs}
 ${_build_dirs}:	_DIRDEP_USE
 
 .if !empty(_debug_reldir)
-.info ${DEP_RELDIR}.${DEP_MACHINE}: ${_build_dirs}
+.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs}
 .endif
 
+# this builds the dependency graph
 .for m in ${_machines}
 # it would be nice to do :N${.TARGET}
 .if !empty(__qual_depdirs)
-.for q in ${__qual_depdirs:E:O:u:N$m}
+.for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m}
 .if !empty(_debug_reldir) || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != ""
-.info ${DEP_RELDIR}.$m: ${_build_dirs:M*.$q}
+.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q}
 .endif
 ${_this_dir}.$m: ${_build_dirs:M*.$q}
 .endfor
 .endif
 .if !empty(_debug_reldir)
-.info ${DEP_RELDIR}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m}
+.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m}
 .endif
 ${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m}
 .endfor
 
 .endif
 
-.for d in ${_depdir_files}
-.if ${.MAKE.MAKEFILES:M${d}} == ""
+# Now find more dependencies - and recurse.
+.for d in ${_build_dirs}
+.if ${_DIRDEP_CHECKED:M$d} == ""
+# once only
+_DIRDEP_CHECKED += $d
+# Note: _build_dirs is fully qualifed so d:R is always the directory
+.if exists(${d:R})
+# Warning: there is an assumption here that MACHINE is always 
+# the first entry in TARGET_SPEC_VARS.
+# If TARGET_SPEC and MACHINE are insufficient, you have a problem.
+_m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:S;${MACHINE};${d:E:C/,.*//};:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]}
+.if !empty(_m)
+_qm := ${_m:${M_dep_qual_fixes:ts:}}
 .if !empty(_debug_search)
-.info Looking for $d
-.endif
-.if exists($d)
-.include <$d>
-.elif exists(${d:R})
-# an unqualified file exists, we qualified it above so we can set _DEP_MACHINE
-# it might be manually maintained and shared by all machine types
-# tell it the machine we are interested in.
-_DEP_MACHINE := ${d:E}
-.if !empty(_debug_reldir)
-.info loading ${d:R} for ${_DEP_MACHINE}
+.info Looking for ${_qm}
+.endif
+# we pass _DEP_TARGET_SPEC to tell the next step what we want
+_DEP_TARGET_SPEC := ${d:E}
+# some makefiles may still look at this
+_DEP_MACHINE := ${d:E:C/,.*//}
+.if !empty(_debug_reldir) && ${_qm} != ${_m}
+.info loading ${_m} for ${d:E}
+.endif
+.include <${_m}>
 .endif
-# pretend we read $d, so we don't come by here again.
-.MAKE.MAKEFILES += $d
-.include <${d:R}>
 .endif
 .endif
 .endfor
+
 .endif				# -V
 
 .elif ${.MAKE.LEVEL} > 42
diff --git a/contrib/bmake/mk/gendirdeps.mk b/contrib/bmake/mk/gendirdeps.mk
index 890f495..5742c6f 100644
--- a/contrib/bmake/mk/gendirdeps.mk
+++ b/contrib/bmake/mk/gendirdeps.mk
@@ -1,6 +1,7 @@
-# $Id: gendirdeps.mk,v 1.10 2012/06/30 00:37:50 sjg Exp $
+# $Id: gendirdeps.mk,v 1.21 2013/03/28 20:01:05 sjg Exp $
 
-# Copyright (c) 2010, Juniper Networks, Inc.
+# Copyright (c) 2010-2013, Juniper Networks, Inc.
+# All rights reserved.
 # 
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions 
@@ -50,7 +51,12 @@ _CURDIR ?= ${.CURDIR}
 _OBJDIR ?= ${.OBJDIR}
 _OBJTOP ?= ${OBJTOP}
 _OBJROOT ?= ${OBJROOT:U${_OBJTOP}}
-_objroot ?= ${_OBJROOT:tA}
+.if ${_OBJROOT:M*/}
+_slash=/
+.else
+_slash=
+.endif
+_objroot ?= ${_OBJROOT:tA}${_slash}
 
 _this = ${.PARSEDIR}/${.PARSEFILE}
 
@@ -106,25 +112,26 @@ _py_d =
 # we can afford to do this all the time.
 DPDEPS ?= no
 META2DEPS_CMD = ${_time} ${PYTHON} ${META2DEPS} ${_py_d} \
-	-R ${RELDIR} -H ${HOST_TARGET} -O ${M2D_OBJROOT}
+	-R ${RELDIR} -H ${HOST_TARGET} \
+	${M2D_OBJROOTS:O:u:@o@-O $o@}
+
 .if ${DPDEPS:tl} != "no"
 META2DEPS_CMD += -D ${DPDEPS}
 .endif
+
+M2D_OBJROOTS += ${OBJTOP} ${_OBJROOT} ${_objroot}
+.if defined(SB_OBJROOT)
+M2D_OBJROOTS += ${SB_OBJROOT}
+.endif
 .if ${.MAKE.DEPENDFILE_PREFERENCE:U${.MAKE.DEPENDFILE}:M*.${MACHINE}} == ""
 # meta2deps.py only groks objroot
 # so we need to give it what it expects
-M2D_OBJROOT = ${OBJTOP}/
 # and tell it not to add machine qualifiers
 META2DEPS_ARGS += MACHINE=none
-.else
-.if defined(SB_OBJROOT)
-M2D_OBJROOT ?= ${SB_OBJROOT}
-.else
-M2D_OBJROOT = ${OBJTOP}/
-.endif
 .endif
 .if defined(SB_BACKING_SB) 
-META2DEPS_CMD += -S ${SB_BACKING_SB}/src -O ${SB_BACKING_SB}/${SB_OBJPREFIX}
+META2DEPS_CMD += -S ${SB_BACKING_SB}/src 
+M2D_OBJROOTS += ${SB_BACKING_SB}/${SB_OBJPREFIX}
 .endif
 META2DEPS_FILTER = sed 's,^src:,${SRCTOP}/,;s,^\([^/]\),${OBJTOP}/\1,' |
 .elif ${META2DEPS:E} == "sh"
@@ -155,7 +162,26 @@ dir_list != cd ${_OBJDIR} && \
 .if !empty(DPADD)
 _nonlibs := ${DPADD:T:Nlib*:N*include}
 .if !empty(_nonlibs)
-dir_list += ${_nonlibs:@x@${DPADD:M*/$x}@:H:tA}
+ddep_list =
+.for f in ${_nonlibs:@x@${DPADD:M*/$x}@}
+.if exists($f.dirdep)
+ddep_list += $f.dirdep
+.elif exists(${f:H}.dirdep)
+ddep_list += ${f:H}.dirdep
+.else
+dir_list += ${f:H:tA}
+.endif
+.endfor
+.if !empty(ddep_list)
+ddeps != cat ${ddep_list:O:u} | ${META2DEPS_FILTER} ${_skip_gendirdeps} \
+        sed 's,//*$$,,;s,\.${HOST_TARGET}$$,.host,;s,\.${MACHINE}$$,,'
+
+.if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != ""
+.info ${RELDIR}: raw_dir_list='${dir_list}'
+.info ${RELDIR}: ddeps='${ddeps}'
+.endif
+dir_list += ${ddeps}
+.endif
 .endif
 .endif
 
@@ -167,26 +193,28 @@ dir_list += ${_nonlibs:@x@${DPADD:M*/$x}@:H:tA}
 # so we add 
 # ${"${dir_list:M*bsd/sys/${MACHINE_ARCH}/include}":?bsd/include:}
 # to GENDIRDEPS_DIR_LIST_XTRAS
+_objtops = ${OBJTOP} ${_OBJTOP} ${_obtop}
+_objtops := ${_objtops:O:u}
 dirdep_list = \
-	${dir_list:M${_objtop}*/*:C,${_objtop}[^/]*/,,} \
+	${_objtops:@o@${dir_list:M$o*/*:C,$o[^/]*/,,}@} \
 	${GENDIRDEPS_DIR_LIST_XTRAS}
 
+# sort longest first
+M2D_OBJROOTS := ${M2D_OBJROOTS:O:u:[-1..1]}
+
 # anything we use from an object dir other than ours
 # needs to be qualified with its .<machine> suffix
 # (we used the pseudo machine "host" for the HOST_TARGET).
-qualdir_list = \
-	${dir_list:M${_objroot}*/*/*:N${SRCTOP}*:N${_objtop}*:C,${_objroot}([^/]+)/(.*),\2.\1,:S,.${HOST_TARGET},.host,}
-
-.if ${_OBJROOT} != ${_objroot}
-dirdep_list += \
-	${dir_list:M${_OBJTOP}*/*:C,${_OBJTOP}[^/]*/,,}
-
-qualdir_list += \
-	${dir_list:M${_OBJROOT}*/*/*:N${SRCTOP}*:N${_OBJTOP}*:C,${_OBJROOT}([^/]+)/(.*),\2.\1,:S,.${HOST_TARGET},.host,}
-.endif
+skip_ql= ${SRCTOP}* ${_objtops:@o@$o*@}
+.for o in ${M2D_OBJROOTS:${skip_ql:${M_ListToSkip}}}
+# we need := so only skip_ql to this point applies
+ql :=	${dir_list:${skip_ql:${M_ListToSkip}}:M$o*/*/*:C,$o([^/]+)/(.*),\2.\1,:S,.${HOST_TARGET},.host,}
+qualdir_list += ${ql}
+skip_ql+= $o*
+.endfor
 
 dirdep_list := ${dirdep_list:O:u}
-qualdir_list := ${qualdir_list:O:u}
+qualdir_list := ${qualdir_list:N*.${MACHINE}:O:u}
 
 DIRDEPS = \
 	${dirdep_list:N${RELDIR}:N${RELDIR}/*} \
@@ -207,6 +235,7 @@ DIRDEPS += \
 DIRDEPS := ${DIRDEPS:${GENDIRDEPS_FILTER:UNno:ts:}:O:u}
 
 .if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != ""
+.info ${RELDIR}: M2D_OBJROOTS=${M2D_OBJROOTS}
 .info ${RELDIR}: dir_list='${dir_list}'
 .info ${RELDIR}: dirdep_list='${dirdep_list}'
 .info ${RELDIR}: qualdir_list='${qualdir_list}'
@@ -263,7 +292,6 @@ CAT_DEPEND ?= .depend
 ${_DEPENDFILE}: ${CAT_DEPEND:M.depend} ${META_FILES:O:u:@m@${exists($m):?$m:}@} ${_this} ${META2DEPS}
 	@(echo '# Autogenerated - do NOT edit!'; echo; \
 	echo 'DEP_RELDIR := $${_PARSEDIR:S,$${SRCTOP}/,,}'; echo; \
-	echo 'DEP_MACHINE := $${.PARSEFILE:E}'; echo; \
 	echo 'DIRDEPS = \'; \
 	echo '${DIRDEPS:@d@	$d \\${.newline}@}'; echo; \
 	${_include_src_dirdeps} \
@@ -285,7 +313,6 @@ all:	${_DEPENDFILE}
 ${_DEPENDFILE}: ${MAKEFILE} ${_this}
 	@(echo '# Autogenerated - do NOT edit!'; echo; \
 	echo 'DEP_RELDIR := $${_PARSEDIR:S,$${SRCTOP}/,,}'; echo; \
-	echo 'DEP_MACHINE := $${.PARSEFILE:E}'; echo; \
 	echo 'DIRDEPS = \'; \
 	echo '${DIRDEPS:@d@	$d \\${.newline}@}'; echo; \
 	echo '.include <dirdeps.mk>'; \
diff --git a/contrib/bmake/mk/install-mk b/contrib/bmake/mk/install-mk
index 7dea1fc..c45c6ca 100644
--- a/contrib/bmake/mk/install-mk
+++ b/contrib/bmake/mk/install-mk
@@ -55,7 +55,7 @@
 #       Simon J. Gerraty <sjg@crufty.net>
 
 # RCSid:
-#	$Id: install-mk,v 1.83 2013/01/24 01:02:23 sjg Exp $
+#	$Id: install-mk,v 1.88 2013/03/31 22:31:59 sjg Exp $
 #
 #	@(#) Copyright (c) 1994 Simon J. Gerraty
 #
@@ -70,7 +70,7 @@
 #	sjg@crufty.net
 #
 
-MK_VERSION=20130123
+MK_VERSION=20130330
 OWNER=
 GROUP=
 MODE=444
diff --git a/contrib/bmake/mk/meta.stage.mk b/contrib/bmake/mk/meta.stage.mk
index cf62db4..0faeef3 100644
--- a/contrib/bmake/mk/meta.stage.mk
+++ b/contrib/bmake/mk/meta.stage.mk
@@ -1,4 +1,4 @@
-# $Id: meta.stage.mk,v 1.17 2013/01/24 01:02:23 sjg Exp $
+# $Id: meta.stage.mk,v 1.24 2013/03/23 02:25:19 sjg Exp $
 #
 #	@(#) Copyright (c) 2011, Simon J. Gerraty
 #
@@ -48,37 +48,39 @@ GENDIRDEPS_FILTER += Nnot-empty-is-important \
 	${_STAGED_DIRS:O:u:M${OBJTOP}*:S,${OBJTOP}/,N,} \
 	${_STAGED_DIRS:O:u:N${OBJTOP}*:S,${_objroot},,:C,^([^/]+)/(.*),N\2.\1,:S,${HOST_TARGET},.host,}
 
+LN_CP_SCRIPT = LnCp() { \
+  rm -f $$2 2> /dev/null; \
+  ln $$1 $$2 2> /dev/null || \
+  cp -p $$1 $$2; }
+
 # it is an error for more than one src dir to try and stage
 # the same file
-STAGE_DIRDEP_SCRIPT = StageDirdep() { \
+STAGE_DIRDEP_SCRIPT = ${LN_CP_SCRIPT}; StageDirdep() { \
   t=$$1; \
   if [ -s $$t.dirdep ]; then \
 	cmp -s .dirdep $$t.dirdep && return; \
 	echo "ERROR: $$t installed by `cat $$t.dirdep` not ${_dirdep}" >&2; \
 	exit 1; \
   fi; \
-  ln .dirdep $$t.dirdep 2> /dev/null || \
-  cp .dirdep $$t.dirdep; }
+  LnCp .dirdep $$t.dirdep || exit 1; }
 
 # common logic for staging files
 # this all relies on RELDIR being set to a subdir of SRCTOP
 # we use ln(1) if we can, else cp(1)
 STAGE_FILE_SCRIPT = ${STAGE_DIRDEP_SCRIPT}; StageFiles() { \
-  case "$$1" in -m) mode=$$2; shift 2;; *) mode=;; esac; \
+  case "$$1" in "") return;; -m) mode=$$2; shift 2;; *) mode=;; esac; \
   dest=$$1; shift; \
   mkdir -p $$dest; \
   [ -s .dirdep ] || echo '${_dirdep}' > .dirdep; \
   for f in "$$@"; do \
 	case "$$f" in */*) t=$$dest/${_stage_file_basename};; *) t=$$dest/$$f;; esac; \
 	StageDirdep $$t; \
-	rm -f $$t; \
-	{ ln $$f $$t 2> /dev/null || \
-	cp -p $$f $$t; }; \
-	$${mode:+chmod $$mode $$t}; \
+	LnCp $$f $$t || exit 1; \
+	[ -z "$$mode" ] || chmod $$mode $$t; \
   done; :; }
 
 STAGE_LINKS_SCRIPT = ${STAGE_DIRDEP_SCRIPT}; StageLinks() { \
-  case "$$1" in --) shift;; -*) ldest= lnf=$$1; shift;; /*) ldest=$$1/;; esac; \
+  case "$$1" in "") return;; --) shift;; -*) ldest= lnf=$$1; shift;; /*) ldest=$$1/;; esac; \
   dest=$$1; shift; \
   mkdir -p $$dest; \
   [ -s .dirdep ] || echo '${_dirdep}' > .dirdep; \
@@ -89,11 +91,11 @@ STAGE_LINKS_SCRIPT = ${STAGE_DIRDEP_SCRIPT}; StageLinks() { \
 	shift; \
 	StageDirdep $$t; \
 	rm -f $$t 2>/dev/null; \
-	ln $$lnf $$l $$t; \
+	ln $$lnf $$l $$t || exit 1; \
   done; :; }
 
 STAGE_AS_SCRIPT = ${STAGE_DIRDEP_SCRIPT}; StageAs() { \
-  case "$$1" in -m) mode=$$2; shift 2;; *) mode=;; esac; \
+  case "$$1" in "") return;; -m) mode=$$2; shift 2;; *) mode=;; esac; \
   dest=$$1; shift; \
   mkdir -p $$dest; \
   [ -s .dirdep ] || echo '${_dirdep}' > .dirdep; \
@@ -103,10 +105,8 @@ STAGE_AS_SCRIPT = ${STAGE_DIRDEP_SCRIPT}; StageAs() { \
 	case "$$1" in */*) mkdir -p ${_stage_target_dirname};; esac; \
 	shift; \
 	StageDirdep $$t; \
-	rm -f $$t; \
-	{ ln $$s $$t 2> /dev/null || \
-	cp -p $$s $$t; }; \
-	$${mode:+chmod $$mode $$t}; \
+	LnCp $$s $$t || exit 1; \
+	[ -z "$$mode" ] || chmod $$mode $$t; \
   done; :; }
 
 # this is simple, a list of the "staged" files depends on this,
@@ -114,8 +114,7 @@ _STAGE_BASENAME_USE:	.USE ${.TARGET:T}
 	@${STAGE_FILE_SCRIPT}; StageFiles ${.TARGET:H:${STAGE_DIR_FILTER}} ${.TARGET:T}
 
 .if !empty(STAGE_INCSDIR)
-CLEANFILES += stage_incs
-
+STAGE_TARGETS += stage_incs
 STAGE_INCS ?= ${.ALLSRC:N.dirdep}
 
 stage_incs:	.dirdep
@@ -124,7 +123,7 @@ stage_incs:	.dirdep
 .endif
 
 .if !empty(STAGE_LIBDIR)
-CLEANFILES += stage_libs
+STAGE_TARGETS += stage_libs
 
 STAGE_LIBS ?= ${.ALLSRC:N.dirdep}
 
@@ -152,7 +151,6 @@ STAGE_SYMLINKS ?= ${.ALLSRC:T:N.dirdep:Nstage_*}
 .endif
 
 .if !empty(STAGE_SETS)
-
 CLEANFILES += ${STAGE_SETS:@s@stage*$s@}
 
 # some makefiles need to populate multiple directories
@@ -162,6 +160,7 @@ STAGE_SYMLINKS.$s ?= ${.ALLSRC:N.dirdep}
 STAGE_LINKS_DIR.$s ?= ${STAGE_OBJTOP}
 STAGE_SYMLINKS_DIR.$s ?= ${STAGE_OBJTOP}
 
+STAGE_TARGETS += stage_files
 .if $s != "_default"
 stage_files:	stage_files.$s
 stage_files.$s:	.dirdep
@@ -171,6 +170,7 @@ stage_files:	.dirdep
 	@${STAGE_FILE_SCRIPT}; StageFiles ${FLAGS.$@} ${STAGE_FILES_DIR.$s:U${STAGE_DIR.$s}:${STAGE_DIR_FILTER}} ${STAGE_FILES.$s}
 	@touch $@
 
+STAGE_TARGETS += stage_links
 .if $s != "_default"
 stage_links:	stage_links.$s
 stage_links.$s:	.dirdep
@@ -180,6 +180,7 @@ stage_links:	.dirdep
 	@${STAGE_LINKS_SCRIPT}; StageLinks ${STAGE_LINKS_DIR.$s:U${STAGE_DIR.$s}:${STAGE_DIR_FILTER}} ${STAGE_LINKS.$s}
 	@touch $@
 
+STAGE_TARGETS += stage_symlinks
 .if $s != "_default"
 stage_symlinks:	stage_symlinks.$s
 stage_symlinks.$s:	.dirdep
@@ -195,6 +196,8 @@ stage_symlinks:	.dirdep
 .if !empty(STAGE_AS_SETS)
 CLEANFILES += ${STAGE_AS_SETS:@s@stage*$s@}
 
+STAGE_TARGETS += stage_as
+
 # sometimes things need to be renamed as they are staged
 # each ${file} will be staged as ${STAGE_AS_${file:T}}
 # one could achieve the same with SYMLINKS
@@ -209,4 +212,20 @@ stage_as.$s:	.dirdep
 .endfor
 .endif
 
+CLEANFILES += ${STAGE_TARGETS}
+
+# stage_*links usually needs to follow any others.
+.for t in ${STAGE_TARGETS:N*links:O:u}
+.ORDER: $t stage_links
+.ORDER: $t stage_symlinks
+.endfor
+
+# make sure this exists
+staging:
+
+# generally we want staging to wait until everything else is done
+STAGING_WAIT ?= .WAIT
+
+all: ${STAGING_WAIT} staging
+
 .endif
diff --git a/contrib/bmake/mk/meta2deps.py b/contrib/bmake/mk/meta2deps.py
index cb6d321..6b6157c 100755
--- a/contrib/bmake/mk/meta2deps.py
+++ b/contrib/bmake/mk/meta2deps.py
@@ -35,9 +35,10 @@ We only pay attention to a subset of the information in the
 
 """
 RCSid:
-	$Id: meta2deps.py,v 1.7 2012/11/06 05:44:03 sjg Exp $
+	$Id: meta2deps.py,v 1.12 2013/03/31 22:31:59 sjg Exp $
 
-	Copyright (c) 2011, Juniper Networks, Inc.
+	Copyright (c) 2011-2013, Juniper Networks, Inc.
+	All rights reserved.
 
 	Redistribution and use in source and binary forms, with or without
 	modification, are permitted provided that the following conditions 
@@ -149,6 +150,7 @@ class MetaFile:
 
         MACHINE	the machine we built for.
         	set to 'none' if we are not cross-building.
+		More specifically if machine cannot be deduced from objdirs.
 
         HOST_TARGET
 		when we build for the psuedo machine 'host'
@@ -174,6 +176,11 @@ class MetaFile:
         self.debug = getv(conf, 'debug', 0)
         self.debug_out = getv(conf, 'debug_out', sys.stderr)
 
+        self.machine = getv(conf, 'MACHINE', '')
+        self.curdir = getv(conf, 'CURDIR')
+        self.reldir = getv(conf, 'RELDIR')
+        self.dpdeps = getv(conf, 'DPDEPS')
+
         if not self.conf:
             # some of the steps below we want to do only once
             self.conf = conf
@@ -189,7 +196,24 @@ class MetaFile:
                 if not _srctop in self.srctops:
                     self.srctops.append(_srctop)
 
+            trim_list = ['/' + self.machine + '/',
+                         '/' + self.machine, 
+                         self.machine + '/',
+                         self.machine]
+
+            if self.machine == 'host':
+                trim_list += ['/' + self.host_target + '/',
+                              '/' + self.host_target,
+                              self.host_target + '/',
+                              self.host_target]
+
             for objroot in getv(conf, 'OBJROOTS', []):
+                for e in trim_list:
+                    if objroot.endswith(e):
+                        # this is not what we want - fix it
+                        objroot = objroot[0:-len(e)]
+                        if e.endswith('/'):
+                            objroot += '/'
                 if not objroot in self.objroots:
                     self.objroots.append(objroot)
                     _objroot = os.path.realpath(objroot)
@@ -198,6 +222,10 @@ class MetaFile:
                     if not _objroot in self.objroots:
                         self.objroots.append(_objroot)
 
+            # we want the longest match
+            self.srctops.sort(reverse=True)
+            self.objroots.sort(reverse=True)
+            
             if self.debug:
                 print >> self.debug_out, "host_target=", self.host_target
                 print >> self.debug_out, "srctops=", self.srctops
@@ -205,10 +233,6 @@ class MetaFile:
 
             self.dirdep_re = re.compile(r'([^/]+)/(.+)')
 
-        self.curdir = getv(conf, 'CURDIR')
-        self.machine = getv(conf, 'MACHINE', '')
-        self.reldir = getv(conf, 'RELDIR')
-        self.dpdeps = getv(conf, 'DPDEPS')
         if self.dpdeps and not self.reldir:
             if self.debug:
                 print >> self.debug_out, "need reldir:",
@@ -221,6 +245,8 @@ class MetaFile:
             if not self.reldir:
                 self.dpdeps = None      # we cannot do it?
 
+        self.cwd = os.getcwd()          # make sure this is initialized
+
         if name:
             self.parse()
 
diff --git a/contrib/bmake/mk/meta2deps.sh b/contrib/bmake/mk/meta2deps.sh
index e7ddd82..9c76b77 100755
--- a/contrib/bmake/mk/meta2deps.sh
+++ b/contrib/bmake/mk/meta2deps.sh
@@ -77,9 +77,10 @@
 
 
 # RCSid:
-#	$Id: meta2deps.sh,v 1.4 2012/11/07 06:55:21 sjg Exp $
+#	$Id: meta2deps.sh,v 1.5 2013/02/10 19:21:46 sjg Exp $
 
-# Copyright (c) 2010, Juniper Networks, Inc.
+# Copyright (c) 2010-2012, Juniper Networks, Inc.
+# All rights reserved.
 # 
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions 
diff --git a/contrib/bmake/mk/sys.dependfile.mk b/contrib/bmake/mk/sys.dependfile.mk
index 752a46f..42cec61 100644
--- a/contrib/bmake/mk/sys.dependfile.mk
+++ b/contrib/bmake/mk/sys.dependfile.mk
@@ -1,4 +1,4 @@
-# $Id: sys.dependfile.mk,v 1.4 2012/11/08 18:31:42 sjg Exp $
+# $Id: sys.dependfile.mk,v 1.5 2013/03/08 00:59:21 sjg Exp $
 #
 #	@(#) Copyright (c) 2012, Simon J. Gerraty
 #
@@ -25,16 +25,20 @@
 # All depend file names should start with this
 .MAKE.DEPENDFILE_PREFIX ?= Makefile.depend
 
-# The order of preference: we will use the first one of these we find
-# otherwise the 1st entry will be used by default.
+# The order of preference: we will use the first one of these we find.
+# It usually makes sense to order from most specific to least.
 .MAKE.DEPENDFILE_PREFERENCE ?= \
 	${.CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.${MACHINE} \
 	${.CURDIR}/${.MAKE.DEPENDFILE_PREFIX}
 
+# Normally the 1st entry is our default choice
+# Another useful default is ${.MAKE.DEPENDFILE_PREFIX}
+.MAKE.DEPENDFILE_DEFAULT ?= ${.MAKE.DEPENDFILE_PREFERENCE:[1]}
+
 _e := ${.MAKE.DEPENDFILE_PREFERENCE:@m@${exists($m):?$m:}@}
 .if !empty(_e)
 .MAKE.DEPENDFILE := ${_e:[1]}
-.elif ${.MAKE.DEPENDFILE_PREFERENCE:M*${MACHINE}} != "" && ${.MAKE.DEPENDFILE_PREFERENCE:[1]:E} != ${MACHINE}
+.elif ${.MAKE.DEPENDFILE_PREFERENCE:M*${MACHINE}} != "" && ${.MAKE.DEPENDFILE_DEFAULT:E} != ${MACHINE}
 # MACHINE specific depend files are supported, but *not* default.
 # If any already exist, we should follow suit.
 _aml = ${ALL_MACHINE_LIST:Uarm amd64 i386 powerpc:N${MACHINE}} ${MACHINE}
@@ -44,4 +48,4 @@ _e := ${_aml:@MACHINE@${.MAKE.DEPENDFILE_PREFERENCE:@m@${exists($m):?$m:}@}@}
 .MAKE.DEPENDFILE ?= ${.MAKE.DEPENDFILE_PREFERENCE:M*${MACHINE}:[1]}
 .endif
 .endif
-.MAKE.DEPENDFILE ?= ${.MAKE.DEPENDFILE_PREFERENCE:[1]}
+.MAKE.DEPENDFILE ?= ${.MAKE.DEPENDFILE_DEFAULT}
diff --git a/contrib/bmake/parse.c b/contrib/bmake/parse.c
index 0b18f5d..14c868b 100644
--- a/contrib/bmake/parse.c
+++ b/contrib/bmake/parse.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: parse.c,v 1.185 2012/06/12 19:21:51 joerg Exp $	*/
+/*	$NetBSD: parse.c,v 1.188 2013/03/22 16:07:59 sjg Exp $	*/
 
 /*
  * Copyright (c) 1988, 1989, 1990, 1993
@@ -69,14 +69,14 @@
  */
 
 #ifndef MAKE_NATIVE
-static char rcsid[] = "$NetBSD: parse.c,v 1.185 2012/06/12 19:21:51 joerg Exp $";
+static char rcsid[] = "$NetBSD: parse.c,v 1.188 2013/03/22 16:07:59 sjg Exp $";
 #else
 #include <sys/cdefs.h>
 #ifndef lint
 #if 0
 static char sccsid[] = "@(#)parse.c	8.3 (Berkeley) 3/19/94";
 #else
-__RCSID("$NetBSD: parse.c,v 1.185 2012/06/12 19:21:51 joerg Exp $");
+__RCSID("$NetBSD: parse.c,v 1.188 2013/03/22 16:07:59 sjg Exp $");
 #endif
 #endif /* not lint */
 #endif
@@ -213,6 +213,7 @@ typedef enum {
     ExShell,	    /* .SHELL */
     Silent,	    /* .SILENT */
     SingleShell,    /* .SINGLESHELL */
+    Stale,	    /* .STALE */
     Suffixes,	    /* .SUFFIXES */
     Wait,	    /* .WAIT */
     Attribute	    /* Generic attribute */
@@ -336,6 +337,7 @@ static const struct {
 { ".SHELL", 	  ExShell,    	0 },
 { ".SILENT",	  Silent,   	OP_SILENT },
 { ".SINGLESHELL", SingleShell,	0 },
+{ ".STALE",	  Stale,	0 },
 { ".SUFFIXES",	  Suffixes, 	0 },
 { ".USE",   	  Attribute,   	OP_USE },
 { ".USEBEFORE",   Attribute,   	OP_USEBEFORE },
@@ -915,6 +917,8 @@ ParseDoOp(void *gnp, void *opp)
 	gn->type |= op & ~OP_OPMASK;
 
 	cohort = Targ_FindNode(gn->name, TARG_NOHASH);
+	if (doing_depend)
+	    ParseMark(cohort);
 	/*
 	 * Make the cohort invisible as well to avoid duplicating it into
 	 * other variables. True, parents of this target won't tend to do
@@ -987,6 +991,8 @@ ParseDoSrc(int tOp, const char *src)
 		 */
 		snprintf(wait_src, sizeof wait_src, ".WAIT_%u", ++wait_number);
 		gn = Targ_FindNode(wait_src, TARG_NOHASH);
+		if (doing_depend)
+		    ParseMark(gn);
 		gn->type = OP_WAIT | OP_PHONY | OP_DEPENDS | OP_NOTMAIN;
 		Lst_ForEach(targets, ParseLinkSrc, gn);
 		return;
@@ -1018,6 +1024,8 @@ ParseDoSrc(int tOp, const char *src)
 	 * source and the current one.
 	 */
 	gn = Targ_FindNode(src, TARG_CREATE);
+	if (doing_depend)
+	    ParseMark(gn);
 	if (predecessor != NULL) {
 	    (void)Lst_AtEnd(predecessor->order_succ, gn);
 	    (void)Lst_AtEnd(gn->order_pred, predecessor);
@@ -1049,6 +1057,8 @@ ParseDoSrc(int tOp, const char *src)
 
 	/* Find/create the 'src' node and attach to all targets */
 	gn = Targ_FindNode(src, TARG_CREATE);
+	if (doing_depend)
+	    ParseMark(gn);
 	if (tOp) {
 	    gn->type |= tOp;
 	} else {
@@ -1294,6 +1304,7 @@ ParseDoDependency(char *line)
 		 *	    	    	apply the .DEFAULT commands.
 		 *	.PHONY		The list of targets
 		 *	.NOPATH		Don't search for file in the path
+		 *	.STALE
 		 *	.BEGIN
 		 *	.END
 		 *	.ERROR
@@ -1304,42 +1315,45 @@ ParseDoDependency(char *line)
 		 *  	.ORDER	    	Must set initial predecessor to NULL
 		 */
 		switch (specType) {
-		    case ExPath:
-			if (paths == NULL) {
-			    paths = Lst_Init(FALSE);
-			}
-			(void)Lst_AtEnd(paths, dirSearchPath);
-			break;
-		    case Main:
-			if (!Lst_IsEmpty(create)) {
-			    specType = Not;
-			}
-			break;
-		    case Begin:
-		    case End:
-		    case dotError:
-		    case Interrupt:
-			gn = Targ_FindNode(line, TARG_CREATE);
-			gn->type |= OP_NOTMAIN|OP_SPECIAL;
-			(void)Lst_AtEnd(targets, gn);
-			break;
-		    case Default:
-			gn = Targ_NewGN(".DEFAULT");
-			gn->type |= (OP_NOTMAIN|OP_TRANSFORM);
-			(void)Lst_AtEnd(targets, gn);
-			DEFAULT = gn;
-			break;
-		    case NotParallel:
-			maxJobs = 1;
-			break;
-		    case SingleShell:
-			compatMake = TRUE;
-			break;
-		    case Order:
-			predecessor = NULL;
-			break;
-		    default:
-			break;
+		case ExPath:
+		    if (paths == NULL) {
+			paths = Lst_Init(FALSE);
+		    }
+		    (void)Lst_AtEnd(paths, dirSearchPath);
+		    break;
+		case Main:
+		    if (!Lst_IsEmpty(create)) {
+			specType = Not;
+		    }
+		    break;
+		case Begin:
+		case End:
+		case Stale:
+		case dotError:
+		case Interrupt:
+		    gn = Targ_FindNode(line, TARG_CREATE);
+		    if (doing_depend)
+			ParseMark(gn);
+		    gn->type |= OP_NOTMAIN|OP_SPECIAL;
+		    (void)Lst_AtEnd(targets, gn);
+		    break;
+		case Default:
+		    gn = Targ_NewGN(".DEFAULT");
+		    gn->type |= (OP_NOTMAIN|OP_TRANSFORM);
+		    (void)Lst_AtEnd(targets, gn);
+		    DEFAULT = gn;
+		    break;
+		case NotParallel:
+		    maxJobs = 1;
+		    break;
+		case SingleShell:
+		    compatMake = TRUE;
+		    break;
+		case Order:
+		    predecessor = NULL;
+		    break;
+		default:
+		    break;
 		}
 	    } else if (strncmp(line, ".PATH", 5) == 0) {
 		/*
@@ -1398,6 +1412,8 @@ ParseDoDependency(char *line)
 		} else {
 		    gn = Suff_AddTransform(targName);
 		}
+		if (doing_depend)
+		    ParseMark(gn);
 
 		(void)Lst_AtEnd(targets, gn);
 	    }
@@ -1445,6 +1461,7 @@ ParseDoDependency(char *line)
 		Parse_Error(PARSE_WARNING, "Special and mundane targets don't mix. Mundane ones ignored");
 		break;
 	    case Default:
+	    case Stale:
 	    case Begin:
 	    case End:
 	    case dotError:
@@ -2454,6 +2471,7 @@ ParseGmakeExport(char *line)
 		     "Variable/Value missing from \"export\"");
 	return;
     }
+    *value++ = '\0';			/* terminate variable */
 
     /*
      * Expand the value before putting it in the environment.
diff --git a/contrib/bmake/unit-tests/Makefile.in b/contrib/bmake/unit-tests/Makefile.in
index a64a074..bfd29b2 100644
--- a/contrib/bmake/unit-tests/Makefile.in
+++ b/contrib/bmake/unit-tests/Makefile.in
@@ -1,6 +1,6 @@
-# $Id: Makefile.in,v 1.40 2012/12/28 21:28:19 sjg Exp $
+# $Id: Makefile.in,v 1.42 2013/03/23 02:31:13 sjg Exp $
 #
-# $NetBSD: Makefile,v 1.35 2012/11/09 19:08:28 sjg Exp $
+# $NetBSD: Makefile,v 1.36 2013/03/22 16:36:46 sjg Exp $
 #
 # Unit tests for make(1)
 # The main targets are:
@@ -28,6 +28,7 @@ SUBFILES= \
 	error \
 	export \
 	export-all \
+	export-env \
 	doterror \
 	dotwait \
 	forloop \
@@ -72,10 +73,12 @@ TOOL_TR?= tr
 TOOL_DIFF?= diff
 DIFF_FLAGS?= @diff_u@
 
+.if defined(.PARSEDIR)
 # ensure consistent results from sort(1)
 LC_ALL= C
 LANG= C
 .export LANG LC_ALL
+.endif
 
 # The driver.
 # We always pretend .MAKE was called 'make' 
diff --git a/contrib/bmake/unit-tests/export-env b/contrib/bmake/unit-tests/export-env
new file mode 100644
index 0000000..b6ce6a2
--- /dev/null
+++ b/contrib/bmake/unit-tests/export-env
@@ -0,0 +1,24 @@
+# $Id: export-env,v 1.1.1.1 2013/03/23 02:26:59 sjg Exp $
+
+# our normal .export, subsequent changes affect the environment
+UT_TEST=this
+.export UT_TEST
+UT_TEST:= ${.PARSEFILE}
+
+# not so with .export-env
+UT_ENV=exported
+.export-env UT_ENV
+UT_ENV=not-exported
+
+# gmake style export goes further; affects nothing but the environment
+UT_EXP=before-export
+export UT_EXP=exported
+UT_EXP=not-exported
+
+all:
+	@echo make:; ${UT_TEST UT_ENV UT_EXP:L:@v@echo $v=${$v};@}
+	@echo env:; ${UT_TEST UT_ENV UT_EXP:L:@v@echo $v=$${$v};@}
+
+
+
+
diff --git a/contrib/bmake/unit-tests/test.exp b/contrib/bmake/unit-tests/test.exp
index 368dc31..b6fad78 100644
--- a/contrib/bmake/unit-tests/test.exp
+++ b/contrib/bmake/unit-tests/test.exp
@@ -43,6 +43,14 @@ UT_OK=good
 UT_OKDIR=unit-tests
 UT_TEST=export-all
 UT_ZOO=hoopie
+make:
+UT_TEST=export-env
+UT_ENV=not-exported
+UT_EXP=not-exported
+env:
+UT_TEST=export-env
+UT_ENV=exported
+UT_EXP=exported
 At first, I am
 happy
 and now: sad
diff --git a/contrib/bmake/var.c b/contrib/bmake/var.c
index 2e73d5b..c8fd8f5 100644
--- a/contrib/bmake/var.c
+++ b/contrib/bmake/var.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: var.c,v 1.172 2012/11/15 16:42:26 christos Exp $	*/
+/*	$NetBSD: var.c,v 1.173 2013/02/24 19:43:37 christos Exp $	*/
 
 /*
  * Copyright (c) 1988, 1989, 1990, 1993
@@ -69,14 +69,14 @@
  */
 
 #ifndef MAKE_NATIVE
-static char rcsid[] = "$NetBSD: var.c,v 1.172 2012/11/15 16:42:26 christos Exp $";
+static char rcsid[] = "$NetBSD: var.c,v 1.173 2013/02/24 19:43:37 christos Exp $";
 #else
 #include <sys/cdefs.h>
 #ifndef lint
 #if 0
 static char sccsid[] = "@(#)var.c	8.3 (Berkeley) 3/19/94";
 #else
-__RCSID("$NetBSD: var.c,v 1.172 2012/11/15 16:42:26 christos Exp $");
+__RCSID("$NetBSD: var.c,v 1.173 2013/02/24 19:43:37 christos Exp $");
 #endif
 #endif /* not lint */
 #endif
@@ -309,7 +309,6 @@ static char *VarGetPattern(GNode *, Var_Parse_State *,
 			   int, const char **, int, int *, int *,
 			   VarPattern *);
 static char *VarQuote(char *);
-static char *VarChangeCase(char *, int);
 static char *VarHash(char *);
 static char *VarModify(GNode *, Var_Parse_State *,
     const char *,
@@ -2350,37 +2349,6 @@ VarHash(char *str)
    return Buf_Destroy(&buf, FALSE);
 }
 
-/*-
- *-----------------------------------------------------------------------
- * VarChangeCase --
- *      Change the string to all uppercase or all lowercase
- *
- * Input:
- *	str		String to modify
- *	upper		TRUE -> uppercase, else lowercase
- *
- * Results:
- *      The string with case changed
- *
- * Side Effects:
- *      None.
- *
- *-----------------------------------------------------------------------
- */
-static char *
-VarChangeCase(char *str, int upper)
-{
-   Buffer         buf;
-   int            (*modProc)(int);
-
-   modProc = (upper ? toupper : tolower);
-   Buf_Init(&buf, 0);
-   for (; *str ; str++) {
-       Buf_AddByte(&buf, modProc(*str));
-   }
-   return Buf_Destroy(&buf, FALSE);
-}
-
 static char *
 VarStrftime(const char *fmt, int zulu)
 {
@@ -3057,8 +3025,16 @@ ApplyModifiers(char *nstr, const char *tstr,
 					       VarRealpath, NULL);
 			    cp = tstr + 2;
 			    termc = *cp;
-			} else if (tstr[1] == 'u' || tstr[1] == 'l') {
-			    newStr = VarChangeCase(nstr, (tstr[1] == 'u'));
+			} else if (tstr[1] == 'u') {
+			    char *dp = bmake_strdup(nstr);
+			    for (newStr = dp; *dp; dp++)
+				*dp = toupper((unsigned char)*dp);
+			    cp = tstr + 2;
+			    termc = *cp;
+			} else if (tstr[1] == 'l') {
+			    char *dp = bmake_strdup(nstr);
+			    for (newStr = dp; *dp; dp++)
+				*dp = tolower((unsigned char)*dp);
 			    cp = tstr + 2;
 			    termc = *cp;
 			} else if (tstr[1] == 'W' || tstr[1] == 'w') {