Import bmake-20110606. Many changes, among them:

  - unit-tests/modts now works on MirBSD
  - meta mode
  - ApplyModifiers: when we parse a variable which is not the entire modifier
    string, or not followed by ':', do not consider it as containing modifiers.
  - when long modifiers fail to match, check sysV style.
  - :hash - cheap 32bit hash of value
  - :localtime, :gmtime - use value as format string for strftime.
  - fix for use after free() in CondDoExists().
  - boot-strap (TOOL_DIFF): aparently at least on linux distro
    formats the output of 'type' differently - so eat any "()"
  - correct sysV substitution handling of empty lhs and variable
  - correct exists() check for dir with trailing /
  - correct handling of modifiers for non-existant variables during evaluation
    of conditionals.
  - fix for incorrect .PARSEDIR when .OBJDIR is re-computed after makefiles
    have been read.
  - fix example of :? modifier in man page.
  - sigcompat.c: convert to ansi so we can use higher warning levels.
  - parse.c: SunOS 5.8 at least does not have MAP_FILE
  - use mmap(2) if available, for reading makefiles
  - to ensure unit-tests results match, need to control LC_ALL as well as LANG.
  - if stale dependency is an IMPSRC, search via .PATH
  - machine.sh: like os.sh, allow for uname -p producing useless drivel
  - boot-strap: document configure knobs for meta and filemon.

6 files changed, 1609 insertions, 3 deletions

diff --git a/devel/bmake/files/dirname.c b/devel/bmake/files/dirname.c
new file mode 100644
index 00000000000..2f4ede97a26
--- /dev/null
+++ b/devel/bmake/files/dirname.c
@@ -0,0 +1,95 @@
+/*	$NetBSD: dirname.c,v 1.1.1.1 2011/06/18 22:17:55 bsiegert Exp $	*/
+
+/*-
+ * Copyright (c) 1997, 2002 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Klaus Klein and Jason R. Thorpe.
+ *
+ * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+#ifndef HAVE_DIRNAME
+
+#include <sys/cdefs.h>
+
+#ifdef HAVE_LIMITS_H
+#include <limits.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#ifndef PATH_MAX
+# define PATH_MAX 1024
+#endif
+
+char *
+dirname(char *path)
+{
+	static char result[PATH_MAX];
+	const char *lastp;
+	size_t len;
+
+	/*
+	 * If `path' is a null pointer or points to an empty string,
+	 * return a pointer to the string ".".
+	 */
+	if ((path == NULL) || (*path == '\0'))
+		goto singledot;
+
+
+	/* Strip trailing slashes, if any. */
+	lastp = path + strlen(path) - 1;
+	while (lastp != path && *lastp == '/')
+		lastp--;
+
+	/* Terminate path at the last occurence of '/'. */
+	do {
+		if (*lastp == '/') {
+			/* Strip trailing slashes, if any. */
+			while (lastp != path && *lastp == '/')
+				lastp--;
+
+			/* ...and copy the result into the result buffer. */
+			len = (lastp - path) + 1 /* last char */;
+			if (len > (PATH_MAX - 1))
+				len = PATH_MAX - 1;
+
+			memcpy(result, path, len);
+			result[len] = '\0';
+
+			return (result);
+		}
+	} while (--lastp >= path);
+
+	/* No /'s found, return a pointer to the string ".". */
+singledot:
+	result[0] = '.';
+	result[1] = '\0';
+
+	return (result);
+}
+#endif
diff --git a/devel/bmake/files/make_malloc.c b/devel/bmake/files/make_malloc.c
index 83d37ac4d0f..f6f8a421d56 100644
--- a/devel/bmake/files/make_malloc.c
+++ b/devel/bmake/files/make_malloc.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: make_malloc.c,v 1.1.1.1 2009/09/18 20:55:23 joerg Exp $	*/
+/*	$NetBSD: make_malloc.c,v 1.1.1.2 2011/06/18 22:18:03 bsiegert Exp $	*/
 
 /*-
  * Copyright (c) 2009 The NetBSD Foundation, Inc.
@@ -28,7 +28,7 @@
 
 #ifdef MAKE_NATIVE
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: make_malloc.c,v 1.1.1.1 2009/09/18 20:55:23 joerg Exp $");
+__RCSID("$NetBSD: make_malloc.c,v 1.1.1.2 2011/06/18 22:18:03 bsiegert Exp $");
 #endif
 
 #include <stdio.h>
@@ -48,7 +48,7 @@ enomem(void)
 {
 	extern char *progname;
 
-	(void)fprintf(stderr, "%s: %s.\n", progname, strerror(errno));
+	(void)fprintf(stderr, "%s: %s.\n", progname, strerror(ENOMEM));
 	exit(2);
 }
 
diff --git a/devel/bmake/files/meta.c b/devel/bmake/files/meta.c
new file mode 100644
index 00000000000..cacb9a40626
--- /dev/null
+++ b/devel/bmake/files/meta.c
@@ -0,0 +1,1305 @@
+/*      $NetBSD: meta.c,v 1.1.1.1 2011/06/18 22:18:04 bsiegert Exp $ */
+
+/*
+ * Implement 'meta' mode.
+ * Adapted from John Birrell's patches to FreeBSD make.
+ * --sjg
+ */
+/*
+ * Copyright (c) 2009-2010, Juniper Networks, Inc.
+ * Portions Copyright (c) 2009, John Birrell.
+ * 
+ * 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 COPYRIGHT HOLDERS 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 COPYRIGHT
+ * OWNER 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. 
+ */
+#if defined(USE_META)
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <libgen.h>
+#include <errno.h>
+#if !defined(HAVE_CONFIG_H) || defined(HAVE_ERR_H)
+#include <err.h>
+#endif
+
+#include "make.h"
+#include "job.h"
+
+#ifdef HAVE_FILEMON_H
+# include <filemon.h>
+#endif
+#if !defined(USE_FILEMON) && defined(FILEMON_SET_FD)
+# define USE_FILEMON
+#endif
+
+static BuildMon Mybm;			/* for compat */
+static Lst metaBailiwick;			/* our scope of control */
+
+Boolean useMeta = FALSE;
+static Boolean useFilemon = FALSE;
+static Boolean writeMeta = FALSE;
+static Boolean metaEnv = FALSE;		/* don't save env unless asked */
+static Boolean metaVerbose = FALSE;
+static Boolean metaIgnoreCMDs = FALSE;	/* ignore CMDs in .meta files */
+static Boolean metaCurdirOk = FALSE;	/* write .meta in .CURDIR Ok? */
+
+extern Boolean forceJobs;
+extern Boolean comatMake;
+
+#define	MAKE_META_PREFIX	".MAKE.META.PREFIX"
+
+#ifndef N2U
+# define N2U(n, u)   (((n) + ((u) - 1)) / (u))
+#endif
+#ifndef ROUNDUP
+# define ROUNDUP(n, u)   (N2U((n), (u)) * (u))
+#endif
+
+#if !defined(HAVE_STRSEP)
+# define strsep(s, d) stresep((s), (d), 0)
+#endif
+
+/*
+ * Filemon is a kernel module which snoops certain syscalls.
+ *
+ * C chdir
+ * E exec
+ * F [v]fork
+ * L [sym]link
+ * M rename
+ * R read
+ * W write
+ * S stat
+ *
+ * See meta_oodate below - we mainly care about 'E' and 'R'.
+ *
+ * We can still use meta mode without filemon, but 
+ * the benefits are more limited.
+ */
+#ifdef USE_FILEMON
+# ifndef _PATH_FILEMON
+#   define _PATH_FILEMON "/dev/filemon"
+# endif
+
+/*
+ * Open the filemon device.
+ */
+static void
+filemon_open(BuildMon *pbm)
+{
+    int retry;
+    
+    pbm->mon_fd = pbm->filemon_fd = -1;
+    if (!useFilemon)
+	return;
+
+    for (retry = 5; retry >= 0; retry--) {
+	if ((pbm->filemon_fd = open(_PATH_FILEMON, O_RDWR)) >= 0)
+	    break;
+    }
+
+    if (pbm->filemon_fd < 0) {
+	useFilemon = FALSE;
+	warn("Could not open %s", _PATH_FILEMON);
+	return;
+    }
+
+    /*
+     * We use a file outside of '.'
+     * to avoid a FreeBSD kernel bug where unlink invalidates
+     * cwd causing getcwd to do a lot more work.
+     * We only care about the descriptor.
+     */
+    pbm->mon_fd = mkTempFile("filemon.XXXXXX", NULL);
+    if (ioctl(pbm->filemon_fd, FILEMON_SET_FD, &pbm->mon_fd) < 0) {
+	err(1, "Could not set filemon file descriptor!");
+    }
+    /* we don't need these once we exec */
+    (void)fcntl(pbm->mon_fd, F_SETFD, 1);
+    (void)fcntl(pbm->filemon_fd, F_SETFD, 1);
+}
+
+/*
+ * Read the build monitor output file and write records to the target's
+ * metadata file.
+ */
+static void
+filemon_read(FILE *mfp, int fd)
+{
+    FILE *fp;
+    char buf[BUFSIZ];
+
+    /* Check if we're not writing to a meta data file.*/
+    if (mfp == NULL) {
+	if (fd >= 0)
+	    close(fd);			/* not interested */
+	return;
+    }
+    /* rewind */
+    lseek(fd, SEEK_SET, 0);
+    if ((fp = fdopen(fd, "r")) == NULL)
+	err(1, "Could not read build monitor file '%d'", fd);
+
+    fprintf(mfp, "-- filemon acquired metadata --\n");
+
+    while (fgets(buf, sizeof(buf), fp)) {
+	fprintf(mfp, "%s", buf);
+    }
+    fflush(mfp);
+    clearerr(fp);
+    fclose(fp);
+}
+#endif
+
+/*
+ * when realpath() fails,
+ * we use this, to clean up ./ and ../
+ */
+static void
+eat_dots(char *buf, size_t bufsz, int dots)
+{
+    char *cp;
+    char *cp2;
+    const char *eat;
+    size_t eatlen;
+
+    switch (dots) {
+    case 1:
+	eat = "/./";
+	eatlen = 2;
+	break;
+    case 2:
+	eat = "/../";
+	eatlen = 3;
+	break;
+    default:
+	return;
+    }
+    
+    do {
+	cp = strstr(buf, eat);
+	if (cp) {
+	    cp2 = cp + eatlen;
+	    if (dots == 2 && cp > buf) {
+		do {
+		    cp--;
+		} while (cp > buf && *cp != '/');
+	    }
+	    if (*cp == '/') {
+		strlcpy(cp, cp2, bufsz - (cp - buf));
+	    } else {
+		return;			/* can't happen? */
+	    }
+	}
+    } while (cp);
+}
+
+static char *
+meta_name(struct GNode *gn, char *mname, size_t mnamelen,
+	  const char *dname,
+	  const char *tname)
+{
+    char buf[MAXPATHLEN];
+    char cwd[MAXPATHLEN];
+    char *rp;
+    char *cp;
+    char *tp;
+    char *p[4];				/* >= number of possible uses */
+    int i;
+
+    i = 0;
+    if (!dname)
+	dname = Var_Value(".OBJDIR", gn, &p[i++]);
+    if (!tname)
+	tname = Var_Value(TARGET, gn, &p[i++]);
+
+    if (realpath(dname, cwd))
+	dname = cwd;
+
+    /*
+     * Weed out relative paths from the target file name.
+     * We have to be careful though since if target is a
+     * symlink, the result will be unstable.
+     * So we use realpath() just to get the dirname, and leave the
+     * basename as given to us.
+     */
+    if ((cp = strrchr(tname, '/'))) {
+	if (realpath(tname, buf)) {
+	    if ((rp = strrchr(buf, '/'))) {
+		rp++;
+		cp++;
+		if (strcmp(cp, rp) != 0)
+		    strlcpy(rp, cp, sizeof(buf) - (rp - buf));
+	    }
+	    tname = buf;
+	} else {
+	    /*
+	     * We likely have a directory which is about to be made.
+	     * We pretend realpath() succeeded, to have a chance
+	     * of generating the same meta file name that we will
+	     * next time through.
+	     */
+	    if (tname[0] == '/') {
+		strlcpy(buf, tname, sizeof(buf));
+	    } else {
+		snprintf(buf, sizeof(buf), "%s/%s", cwd, tname);
+	    }
+	    eat_dots(buf, sizeof(buf), 1);	/* ./ */
+	    eat_dots(buf, sizeof(buf), 2);	/* ../ */
+	    tname = buf;
+	}
+    }
+    /* on some systems dirname may modify its arg */
+    tp = bmake_strdup(tname);
+    if (strcmp(dname, dirname(tp)) == 0)
+	snprintf(mname, mnamelen, "%s.meta", tname);
+    else {
+	snprintf(mname, mnamelen, "%s/%s.meta", dname, tname);
+
+	/*
+	 * Replace path separators in the file name after the
+	 * current object directory path.
+	 */
+	cp = mname + strlen(dname) + 1;
+
+	while (*cp != '\0') {
+	    if (*cp == '/')
+		*cp = '_';
+	    cp++;
+	}
+    }
+    free(tp);
+    for (i--; i >= 0; i--) {
+	if (p[i])
+	    free(p[i]);
+    }
+    return (mname);
+}
+
+/*
+ * Return true if running ${.MAKE}
+ * Bypassed if target is flagged .MAKE
+ */
+static int
+is_submake(void *cmdp, void *gnp)
+{
+    static char *p_make = NULL;
+    static int p_len;
+    char  *cmd = cmdp;
+    GNode *gn = gnp;
+    char *mp = NULL;
+    char *cp;
+    char *cp2;
+    int rc = 0;				/* keep looking */
+
+    if (!p_make) {
+	p_make = Var_Value(".MAKE", gn, &cp);
+	p_len = strlen(p_make);
+    }
+    cp = strchr(cmd, '$');
+    if ((cp)) {
+	mp = Var_Subst(NULL, cmd, gn, FALSE);
+	cmd = mp;
+    }
+    cp2 = strstr(cmd, p_make);
+    if ((cp2)) {
+	switch (cp2[p_len]) {
+	case '\0':
+	case ' ':
+	case '\t':
+	case '\n':
+	    rc = 1;
+	    break;
+	}
+	if (cp2 > cmd && rc > 0) {
+	    switch (cp2[-1]) {
+	    case ' ':
+	    case '\t':
+	    case '\n':
+		break;
+	    default:
+		rc = 0;			/* no match */
+		break;
+	    }
+	}
+    }
+    if (mp)
+	free(mp);
+    return (rc);
+}
+
+typedef struct meta_file_s {
+    FILE *fp;
+    GNode *gn;
+} meta_file_t;
+
+static int
+printCMD(void *cmdp, void *mfpp)
+{
+    meta_file_t *mfp = mfpp;
+    char *cmd = cmdp;
+    char *cp = NULL;
+
+    if (strchr(cmd, '$')) {
+	cmd = cp = Var_Subst(NULL, cmd, mfp->gn, FALSE);
+    }
+    fprintf(mfp->fp, "CMD %s\n", cmd);
+    if (cp)
+	free(cp);
+    return 0;
+}
+
+/*
+ * Certain node types never get a .meta file
+ */
+#define SKIP_META_TYPE(_type) do { \
+    if ((gn->type & __CONCAT(OP_, _type))) {	\
+	if (DEBUG(META)) { \
+	    fprintf(debug_file, "Skipping meta for %s: .%s\n", \
+		    gn->name, __STRING(_type));		       \
+	} \
+	return (NULL); \
+    } \
+} while (0)
+
+static FILE *
+meta_create(BuildMon *pbm, GNode *gn)
+{
+    extern char **environ;
+    meta_file_t mf;
+    char buf[MAXPATHLEN];
+    char objdir[MAXPATHLEN];
+    char **ptr;
+    const char *dname;
+    const char *tname;
+    char *fname;
+    const char *cp;
+    char *p[4];				/* >= possible uses */
+    int i;
+    struct stat fs;
+
+    
+    /* This may be a phony node which we don't want meta data for... */
+    /* Skip .meta for .BEGIN, .END, .ERROR etc as well. */
+    /* Or it may be explicitly flagged as .NOMETA */
+    SKIP_META_TYPE(NOMETA);
+    /* Unless it is explicitly flagged as .META */
+    if (!(gn->type & OP_META)) {
+	SKIP_META_TYPE(PHONY);
+	SKIP_META_TYPE(SPECIAL);
+	SKIP_META_TYPE(MAKE);
+    }
+
+    mf.fp = NULL;
+    
+    i = 0;
+    
+    dname = Var_Value(".OBJDIR", gn, &p[i++]);
+    tname = Var_Value(TARGET, gn, &p[i++]);
+    
+    /* The object directory may not exist. Check it.. */
+    if (stat(dname, &fs) != 0) {
+	if (DEBUG(META))
+	    fprintf(debug_file, "Skipping meta for %s: no .OBJDIR\n",
+		    gn->name);
+	goto out;
+    }
+    /* Check if there are no commands to execute. */
+    if (Lst_IsEmpty(gn->commands)) {
+	if (DEBUG(META))
+	    fprintf(debug_file, "Skipping meta for %s: no commands\n",
+		    gn->name);
+	goto out;
+    }
+
+    /* make sure these are canonical */
+    if (realpath(dname, objdir))
+	dname = objdir;
+
+    /* If we aren't in the object directory, don't create a meta file. */
+    if (!metaCurdirOk && strcmp(curdir, dname) == 0) {
+	if (DEBUG(META))
+	    fprintf(debug_file, "Skipping meta for %s: .OBJDIR == .CURDIR\n",
+		    gn->name);
+	goto out;
+    }
+    if (!(gn->type & OP_META)) {
+	/* We do not generate .meta files for sub-makes */
+	if (Lst_ForEach(gn->commands, is_submake, gn)) {
+	    if (DEBUG(META))
+		fprintf(debug_file, "Skipping meta for %s: .MAKE\n",
+			gn->name);
+	    goto out;
+	}
+    }
+
+    if (metaVerbose) {
+	char *mp;
+
+	/* Describe the target we are building */
+	mp = Var_Subst(NULL, "${" MAKE_META_PREFIX "}", gn, 0);
+	if (*mp)
+	    fprintf(stdout, "%s\n", mp);
+	free(mp);
+    }
+    /* Get the basename of the target */
+    if ((cp = strrchr(tname, '/')) == NULL) {
+	cp = tname;
+    } else {
+	cp++;
+    }
+
+    fflush(stdout);
+
+    if (strcmp(cp, makeDependfile) == 0)
+	goto out;
+
+    if (!writeMeta)
+	/* Don't create meta data. */
+	goto out;
+
+    fname = meta_name(gn, pbm->meta_fname, sizeof(pbm->meta_fname),
+		      dname, tname);
+
+#ifdef DEBUG_META_MODE
+    if (DEBUG(META))
+	fprintf(debug_file, "meta_create: %s\n", fname);
+#endif
+
+    if ((mf.fp = fopen(fname, "w")) == NULL)
+	err(1, "Could not open meta file '%s'", fname);
+
+    fprintf(mf.fp, "# Meta data file %s\n", fname);
+
+    mf.gn = gn;
+
+    Lst_ForEach(gn->commands, printCMD, &mf);
+
+    fprintf(mf.fp, "CWD %s\n", getcwd(buf, sizeof(buf)));
+    fprintf(mf.fp, "TARGET %s\n", tname);
+
+    if (metaEnv) {
+	for (ptr = environ; *ptr != NULL; ptr++)
+	    fprintf(mf.fp, "ENV %s\n", *ptr);
+    }
+
+    fprintf(mf.fp, "-- command output --\n");
+    fflush(mf.fp);
+
+    Var_Append(".MAKE.META.FILES", fname, VAR_GLOBAL);
+    Var_Append(".MAKE.META.CREATED", fname, VAR_GLOBAL);
+    
+ out:
+    for (i--; i >= 0; i--) {
+	if (p[i])
+	    free(p[i]);
+    }
+
+    return (mf.fp);
+}
+
+static Boolean
+boolValue(char *s)
+{
+    switch(*s) {
+    case '0':
+    case 'N':
+    case 'n':
+    case 'F':
+    case 'f':
+	return FALSE;
+    }
+    return TRUE;
+}
+
+void
+meta_init(const char *make_mode)
+{
+    static int once = 0;
+    char *cp;
+
+    useMeta = TRUE;
+    useFilemon = TRUE;
+    writeMeta = TRUE;
+
+    if (make_mode) {
+	if (strstr(make_mode, "env"))
+	    metaEnv = TRUE;
+	if (strstr(make_mode, "verb"))
+	    metaVerbose = TRUE;
+	if (strstr(make_mode, "read"))
+	    writeMeta = FALSE;
+	if (strstr(make_mode, "nofilemon"))
+	    useFilemon = FALSE;
+	if ((cp = strstr(make_mode, "curdirok="))) {
+	    metaCurdirOk = boolValue(&cp[9]);
+	}
+	if (strstr(make_mode, "ignore-cmd"))
+	    metaIgnoreCMDs = TRUE;
+	/* for backwards compatability */
+	Var_Set(".MAKE.META_CREATED", "${.MAKE.META.CREATED}", VAR_GLOBAL, 0);
+	Var_Set(".MAKE.META_FILES", "${.MAKE.META.FILES}", VAR_GLOBAL, 0);
+    }
+    if (metaVerbose && !Var_Exists(MAKE_META_PREFIX, VAR_GLOBAL)) {
+	/*
+	 * The default value for MAKE_META_PREFIX
+	 * prints the absolute path of the target.
+	 * This works be cause :H will generate '.' if there is no /
+	 * and :tA will resolve that to cwd.
+	 */
+	Var_Set(MAKE_META_PREFIX, "Building ${.TARGET:H:tA}/${.TARGET:T}", VAR_GLOBAL, 0);
+    }
+    if (once)
+	return;
+    once = 1;
+    memset(&Mybm, 0, sizeof(Mybm));
+    /*
+     * We consider ourselves master of all within ${.MAKE.META.BAILIWICK}
+     */
+    metaBailiwick = Lst_Init(FALSE);
+    cp = Var_Subst(NULL, "${.MAKE.META.BAILIWICK:O:u:tA}", VAR_GLOBAL, 0);
+    if (cp) {
+	str2Lst_Append(metaBailiwick, cp, NULL);
+    }
+}
+
+/*
+ * In each case below we allow for job==NULL
+ */
+void
+meta_job_start(Job *job, GNode *gn)
+{
+    BuildMon *pbm;
+
+    if (job != NULL) {
+	pbm = &job->bm;
+    } else {
+	pbm = &Mybm;
+    }
+    pbm->mfp = meta_create(pbm, gn);
+#ifdef USE_FILEMON_ONCE
+    /* compat mode we open the filemon dev once per command */
+    if (job == NULL)
+	return;
+#endif
+#ifdef USE_FILEMON
+    if (pbm->mfp != NULL && useFilemon) {
+	filemon_open(pbm);
+    } else {
+	pbm->mon_fd = pbm->filemon_fd = -1;
+    }
+#endif
+}
+
+/*
+ * The child calls this before doing anything.
+ * It does not disturb our state.
+ */
+void
+meta_job_child(Job *job)
+{
+#ifdef USE_FILEMON
+    BuildMon *pbm;
+    pid_t pid;
+
+    if (job != NULL) {
+	pbm = &job->bm;
+    } else {
+	pbm = &Mybm;
+    }
+    pid = getpid();
+    if (pbm->mfp != NULL && useFilemon) {
+	if (ioctl(pbm->filemon_fd, FILEMON_SET_PID, &pid) < 0) {
+	    err(1, "Could not set filemon pid!");
+	}
+    }
+#endif
+}
+
+void
+meta_job_error(Job *job, GNode *gn, int flags, int status)
+{
+    char cwd[MAXPATHLEN];
+    BuildMon *pbm;
+
+    if (job != NULL) {
+	pbm = &job->bm;
+    } else {
+	if (!gn)
+	    gn = job->node;
+	pbm = &Mybm;
+    }
+    if (pbm->mfp != NULL) {
+	fprintf(pbm->mfp, "*** Error code %d%s\n",
+		status,
+		(flags & JOB_IGNERR) ?
+		"(ignored)" : "");
+    }
+    if (gn) {
+	Var_Set(".ERROR_TARGET", gn->path ? gn->path : gn->name, VAR_GLOBAL, 0);
+    }
+    getcwd(cwd, sizeof(cwd));
+    Var_Set(".ERROR_CWD", cwd, VAR_GLOBAL, 0);
+    if (pbm && pbm->meta_fname[0]) {
+	Var_Set(".ERROR_META_FILE", pbm->meta_fname, VAR_GLOBAL, 0);
+    }
+    meta_job_finish(job);
+}
+
+void
+meta_job_output(Job *job, char *cp, const char *nl)
+{
+    BuildMon *pbm;
+    
+    if (job != NULL) {
+	pbm = &job->bm;
+    } else {
+	pbm = &Mybm;
+    }
+    if (pbm->mfp != NULL) {
+	if (metaVerbose) {
+	    static char *meta_prefix = NULL;
+	    static int meta_prefix_len;
+
+	    if (!meta_prefix) {
+		char *cp2;
+
+		meta_prefix = Var_Subst(NULL, "${" MAKE_META_PREFIX "}", VAR_GLOBAL, 0);
+		if ((cp2 = strchr(meta_prefix, '$')))
+		    meta_prefix_len = cp2 - meta_prefix;
+		else
+		    meta_prefix_len = strlen(meta_prefix);
+	    }
+	    if (strncmp(cp, meta_prefix, meta_prefix_len) == 0) {
+		cp = strchr(cp+1, '\n');
+		if (!cp++)
+		    return;
+	    }
+	}
+	fprintf(pbm->mfp, "%s%s", cp, nl);
+    }
+}
+
+void
+meta_cmd_finish(void *pbmp)
+{
+#ifdef USE_FILEMON
+    BuildMon *pbm = pbmp;
+
+    if (!pbm)
+	pbm = &Mybm;
+
+    if (pbm->filemon_fd >= 0) {
+	close(pbm->filemon_fd);
+	filemon_read(pbm->mfp, pbm->mon_fd);
+	pbm->filemon_fd = pbm->mon_fd = -1;
+    }
+#endif
+}
+
+void
+meta_job_finish(Job *job)
+{
+    BuildMon *pbm;
+
+    if (job != NULL) {
+	pbm = &job->bm;
+    } else {
+	pbm = &Mybm;
+    }
+    if (pbm->mfp != NULL) {
+	meta_cmd_finish(pbm);
+	fclose(pbm->mfp);
+	pbm->mfp = NULL;
+	pbm->meta_fname[0] = '\0';
+    }
+}
+
+/*
+ * Fetch a full line from fp - growing bufp if needed
+ * Return length in bufp.
+ */
+static int 
+fgetLine(char **bufp, size_t *szp, int o, FILE *fp)
+{
+    char *buf = *bufp;
+    size_t bufsz = *szp;
+    struct stat fs;
+    int x;
+
+    if (fgets(&buf[o], bufsz - o, fp) != NULL) {
+    check_newline:
+	x = o + strlen(&buf[o]);
+	if (buf[x - 1] == '\n')
+	    return x;
+	/*
+	 * We need to grow the buffer.
+	 * The meta file can give us a clue.
+	 */
+	if (fstat(fileno(fp), &fs) == 0) {
+	    size_t newsz;
+	    char *p;
+
+	    newsz = ROUNDUP((fs.st_size / 2), BUFSIZ);
+	    if (newsz <= bufsz)
+		newsz = ROUNDUP(fs.st_size, BUFSIZ);
+	    if (DEBUG(META)) 
+		fprintf(debug_file, "growing buffer %u -> %u\n",
+			bufsz, newsz);
+	    p = bmake_realloc(buf, newsz);
+	    if (p) {
+		*bufp = buf = p;
+		*szp = bufsz = newsz;
+		/* fetch the rest */
+		if (!fgets(&buf[x], bufsz - x, fp))
+		    return x;		/* truncated! */
+		goto check_newline;
+	    }
+	}
+    }
+    return 0;
+}
+
+static int
+prefix_match(void *p, void *q)
+{
+    const char *prefix = p;
+    const char *path = q;
+    size_t n = strlen(prefix);
+
+    return (0 == strncmp(path, prefix, n));
+}
+
+static int
+string_match(const void *p, const void *q)
+{
+    const char *p1 = p;
+    const char *p2 = q;
+
+    return strcmp(p1, p2);
+}
+
+
+/*
+ * When running with 'meta' functionality, a target can be out-of-date
+ * if any of the references in it's meta data file is more recent.
+ * We have to track the latestdir on a per-process basis.
+ */
+#define LDIR_VNAME_FMT ".meta.%d.ldir"
+
+Boolean
+meta_oodate(GNode *gn, Boolean oodate)
+{
+    static char *tmpdir = NULL;
+    static char cwd[MAXPATHLEN];
+    char ldir_vname[64];
+    char latestdir[MAXPATHLEN];
+    char fname[MAXPATHLEN];
+    char fname1[MAXPATHLEN];
+    char fname2[MAXPATHLEN];
+    char *p;
+    char *cp;
+    static size_t cwdlen = 0;
+    static size_t tmplen = 0;
+    FILE *fp;
+    Boolean ignoreOODATE = FALSE;
+    Lst missingFiles;
+    
+    if (oodate)
+	return oodate;		/* we're done */
+
+    missingFiles = Lst_Init(FALSE);
+
+    /*
+     * We need to check if the target is out-of-date. This includes
+     * checking if the expanded command has changed. This in turn
+     * requires that all variables are set in the same way that they
+     * would be if the target needs to be re-built.
+     */
+    Make_DoAllVar(gn);
+
+    meta_name(gn, fname, sizeof(fname), NULL, NULL);
+
+#ifdef DEBUG_META_MODE
+    if (DEBUG(META))
+	fprintf(debug_file, "meta_oodate: %s\n", fname);
+#endif
+
+    if ((fp = fopen(fname, "r")) != NULL) {
+	static char *buf = NULL;
+	static size_t bufsz;
+	int lineno = 0;
+	int lastpid = 0;
+	int pid;
+	int f = 0;
+	int x;
+	LstNode ln;
+	struct stat fs;
+
+	if (!buf) {
+	    bufsz = 8 * BUFSIZ;
+	    buf = bmake_malloc(bufsz);
+	}
+
+	if (!cwdlen) {
+	    if (getcwd(cwd, sizeof(cwd)) == NULL)
+		err(1, "Could not get current working directory");
+	    cwdlen = strlen(cwd);
+	}
+
+	if (!tmpdir) {
+	    tmpdir = getTmpdir();
+	    tmplen = strlen(tmpdir);
+	}
+
+	/* we want to track all the .meta we read */
+	Var_Append(".MAKE.META.FILES", fname, VAR_GLOBAL);
+
+	ln = Lst_First(gn->commands);
+	while (!oodate && (x = fgetLine(&buf, &bufsz, 0, fp)) > 0) {
+	    lineno++;
+	    if (buf[x - 1] == '\n')
+		buf[x - 1] = '\0';
+	    else
+		warnx("%s: %d: line truncated at %u", fname, lineno, x);
+
+	    /* Find the start of the build monitor section. */
+	    if (!f) {
+		if (strncmp(buf, "-- filemon", 10) == 0) {
+		    f = 1;
+		    continue;
+		}
+		if (strncmp(buf, "# buildmon", 10) == 0) {
+		    f = 1;
+		    continue;
+		}
+	    }		    
+
+	    /* Delimit the record type. */
+	    p = buf;
+#ifdef DEBUG_META_MODE
+	    if (DEBUG(META))
+		fprintf(debug_file, "%s: %d: %s\n", fname, lineno, buf);
+#endif
+	    strsep(&p, " ");
+	    if (f) {
+		/*
+		 * We are in the 'filemon' output section.
+		 * Each record from filemon follows the general form:
+		 *
+		 * <key> <pid> <data>
+		 *
+		 * Where:
+		 * <key> is a single letter, denoting the syscall.
+		 * <pid> is the process that made the syscall.
+		 * <data> is the arguments (of interest).
+		 */
+		switch(buf[0]) {
+		case '#':		/* comment */
+		case 'V':		/* version */
+		    break;
+		default:
+		    /*
+		     * We need to track pathnames per-process.
+		     *
+		     * Each process run by make, starts off in the 'CWD'
+		     * recorded in the .meta file, if it chdirs ('C')
+		     * elsewhere we need to track that - but only for
+		     * that process.  If it forks ('F'), we initialize
+		     * the child to have the same cwd as its parent.
+		     *
+		     * We also need to track the 'latestdir' of
+		     * interest.  This is usually the same as cwd, but
+		     * not if a process is reading directories.
+		     *
+		     * Each time we spot a different process ('pid')
+		     * we save the current value of 'latestdir' in a
+		     * variable qualified by 'lastpid', and
+		     * re-initialize 'latestdir' to any pre-saved
+		     * value for the current 'pid' and 'CWD' if none.
+		     */
+		    pid = atoi(p);
+		    if (pid > 0 && pid != lastpid) {
+			char *ldir;
+			char *tp;
+		    
+			if (lastpid > 0) {
+			    /* We need to remember this. */
+			    Var_Set(ldir_vname, latestdir, VAR_GLOBAL, 0);
+			}
+			snprintf(ldir_vname, sizeof(ldir_vname), LDIR_VNAME_FMT, pid);
+			lastpid = pid;
+			ldir = Var_Value(ldir_vname, VAR_GLOBAL, &tp);
+			if (ldir) {
+			    strlcpy(latestdir, ldir, sizeof(latestdir));
+			    if (tp)
+				free(tp);
+			} else 
+			    strlcpy(latestdir, cwd, sizeof(latestdir));
+		    }
+		    /* Skip past the pid. */
+		    if (strsep(&p, " ") == NULL)
+			continue;
+#ifdef DEBUG_META_MODE
+		    if (DEBUG(META))
+			fprintf(debug_file, "%s: %d: cwd=%s ldir=%s\n", fname, lineno, cwd, latestdir);
+#endif
+		    break;
+		}
+
+		/* Process according to record type. */
+		switch (buf[0]) {
+		case 'X':		/* eXit */
+		    Var_Delete(ldir_vname, VAR_GLOBAL);
+		    lastpid = 0;	/* no need to save ldir_vname */
+		    break;
+
+		case 'F':		/* [v]Fork */
+		    {
+			char cldir[64];
+			int child;
+
+			child = atoi(p);
+			if (child > 0) {
+			    snprintf(cldir, sizeof(cldir), LDIR_VNAME_FMT, child);
+			    Var_Set(cldir, latestdir, VAR_GLOBAL, 0);
+			}
+		    }
+		    break;
+
+		case 'C':		/* Chdir */
+		    /* Update the latest directory. */
+		    strlcpy(latestdir, p, sizeof(latestdir));
+		    break;
+
+		case 'M':		/* renaMe */
+		    if (Lst_IsEmpty(missingFiles))
+			break;
+		    /* 'L' and 'M' put single quotes around the args */
+		    if (*p == '\'') {
+			char *ep;
+
+			p++;
+			if ((ep = strchr(p, '\'')))
+			    *ep = '\0';
+		    }
+		    /* FALLTHROUGH */
+		case 'D':		/* unlink */
+		    if (*p == '/' && !Lst_IsEmpty(missingFiles)) {
+			/* remove p from the missingFiles list if present */
+			if ((ln = Lst_Find(missingFiles, p, string_match)) != NULL) {
+			    char *tp = Lst_Datum(ln);
+			    Lst_Remove(missingFiles, ln);
+			    free(tp);
+			}
+		    }
+		    break;
+		case 'L':		/* Link */
+		    /* we want the target */
+		    if (strsep(&p, " ") == NULL)
+			continue;
+		    /* 'L' and 'M' put single quotes around the args */
+		    if (*p == '\'') {
+			char *ep;
+
+			p++;
+			if ((ep = strchr(p, '\'')))
+			    *ep = '\0';
+		    }
+		    /* FALLTHROUGH */
+		case 'W':		/* Write */
+		    /*
+		     * If a file we generated within our bailiwick
+		     * but outside of .OBJDIR is missing,
+		     * we need to do it again. 
+		     */
+		    /* ignore non-absolute paths */
+		    if (*p != '/')
+			break;
+
+		    if (Lst_IsEmpty(metaBailiwick))
+			break;
+
+		    /* ignore cwd - normal dependencies handle those */
+		    if (strncmp(p, cwd, cwdlen) == 0)
+			break;
+
+		    if (!Lst_ForEach(metaBailiwick, prefix_match, p))
+			break;
+
+		    /* tmpdir might be within */
+		    if (tmplen > 0 && strncmp(p, tmpdir, tmplen) == 0)
+			break;
+
+		    /* ignore anything containing the string "tmp" */
+		    if ((strstr("tmp", p)))
+			break;
+
+		    if (stat(p, &fs) < 0) {
+			Lst_AtEnd(missingFiles, bmake_strdup(p));
+		    }
+		    break;
+		case 'R':		/* Read */
+		case 'E':		/* Exec */
+		    /*
+		     * Check for runtime files that can't
+		     * be part of the dependencies because
+		     * they are _expected_ to change.
+		     */
+		    if (strncmp(p, "/tmp/", 5) == 0 ||
+			(tmplen > 0 && strncmp(p, tmpdir, tmplen) == 0))
+			break;
+
+		    if (strncmp(p, "/var/", 5) == 0)
+			break;
+
+		    /* Ignore device files. */
+		    if (strncmp(p, "/dev/", 5) == 0)
+			break;
+
+		    /* Ignore /etc/ files. */
+		    if (strncmp(p, "/etc/", 5) == 0)
+			break;
+
+		    /*
+		     * The rest of the record is the file name.
+		     * Check if it's not an absolute path.
+		     */
+		    {
+			char *sdirs[4];
+			char **sdp;
+			int sdx = 0;
+			int found = 0;
+
+			if (*p == '/') {
+			    sdirs[sdx++] = p; /* done */
+			} else {
+			    if (strcmp(".", p) == 0)
+				continue;  /* no point */
+
+			    /* Check vs latestdir */
+			    snprintf(fname1, sizeof(fname1), "%s/%s", latestdir, p);
+			    sdirs[sdx++] = fname1;
+
+			    if (strcmp(latestdir, cwd) != 0) {
+				/* Check vs cwd */
+				snprintf(fname2, sizeof(fname2), "%s/%s", cwd, p);
+				sdirs[sdx++] = fname2;
+			    }
+			}
+			sdirs[sdx++] = NULL;
+
+			for (sdp = sdirs; *sdp && !found; sdp++) {
+#ifdef DEBUG_META_MODE
+			    if (DEBUG(META))
+				fprintf(debug_file, "%s: %d: looking for: %s\n", fname, lineno, *sdp);
+#endif
+			    if (stat(*sdp, &fs) == 0) {
+				found = 1;
+				p = *sdp;
+			    }
+			}
+			if (found) {
+#ifdef DEBUG_META_MODE
+			    if (DEBUG(META))
+				fprintf(debug_file, "%s: %d: found: %s\n", fname, lineno, p);
+#endif
+			    if (!S_ISDIR(fs.st_mode) &&
+				fs.st_mtime > gn->mtime) {
+				if (DEBUG(META))
+				    fprintf(debug_file, "%s: %d: file '%s' is newer than the target...\n", fname, lineno, p);
+				oodate = TRUE;
+			    } else if (S_ISDIR(fs.st_mode)) {
+				/* Update the latest directory. */
+				realpath(p, latestdir);
+			    }
+			} else if (errno == ENOENT && *p == '/' &&
+				   strncmp(p, cwd, cwdlen) != 0) {
+			    /*
+			     * A referenced file outside of CWD is missing.
+			     * We cannot catch every eventuality here...
+			     */
+			    if (DEBUG(META))
+				fprintf(debug_file, "%s: %d: file '%s' may have moved?...\n", fname, lineno, p);
+			    oodate = TRUE;
+			}
+		    }
+		    break;
+		default:
+		    break;
+		}
+	    } else if (strcmp(buf, "CMD") == 0) {
+		/*
+		 * Compare the current command with the one in the
+		 * meta data file.
+		 */
+		if (ln == NULL) {
+		    if (DEBUG(META))
+			fprintf(debug_file, "%s: %d: there were more build commands in the meta data file than there are now...\n", fname, lineno);
+		    oodate = TRUE;
+		} else {
+		    char *cmd = (char *)Lst_Datum(ln);
+
+		    if (!ignoreOODATE) {
+			if (strstr(cmd, "$?"))
+			    ignoreOODATE = TRUE;
+			else if ((cp = strstr(cmd, ".OODATE"))) {
+			    /* check for $[{(].OODATE[)}] */
+			    if (cp > cmd + 2 && cp[-2] == '$')
+				ignoreOODATE = TRUE;
+			}
+			if (ignoreOODATE && DEBUG(META))
+			    fprintf(debug_file, "%s: %d: cannot compare commands using .OODATE\n", fname, lineno);
+		    }
+		    cmd = Var_Subst(NULL, cmd, gn, TRUE);
+
+		    if ((cp = strchr(cmd, '\n'))) {
+			int n;
+
+			/*
+			 * This command contains newlines, we need to
+			 * fetch more from the .meta file before we
+			 * attempt a comparison.
+			 */
+			/* first put the newline back at buf[x - 1] */
+			buf[x - 1] = '\n';
+			do {
+			    /* now fetch the next line */
+			    if ((n = fgetLine(&buf, &bufsz, x, fp)) <= 0)
+				break;
+			    x = n;
+			    lineno++;
+			    if (buf[x - 1] != '\n') {
+				warnx("%s: %d: line truncated at %u", fname, lineno, x);
+				break;
+			    }
+			    cp = strchr(++cp, '\n');
+			} while (cp);
+			if (buf[x - 1] == '\n')
+			    buf[x - 1] = '\0';
+		    }
+		    if (!ignoreOODATE &&
+			!(gn->type & OP_NOMETA_CMP) &&
+			strcmp(p, cmd) != 0) {
+			if (DEBUG(META))
+			    fprintf(debug_file, "%s: %d: a build command has changed\n%s\nvs\n%s\n", fname, lineno, p, cmd);
+			if (!metaIgnoreCMDs)
+			    oodate = TRUE;
+		    }
+		    free(cmd);
+		    ln = Lst_Succ(ln);
+		}
+	    } else if (strcmp(buf, "CWD") == 0) {
+		/*
+		 * Check if there are extra commands now
+		 * that weren't in the meta data file.
+		 */
+		if (!oodate && ln != NULL) {
+		    if (DEBUG(META))
+			fprintf(debug_file, "%s: %d: there are extra build commands now that weren't in the meta data file\n", fname, lineno);
+		    oodate = TRUE;
+		}
+		if (strcmp(p, cwd) != 0) {
+		    if (DEBUG(META))
+			fprintf(debug_file, "%s: %d: the current working directory has changed from '%s' to '%s'\n", fname, lineno, p, curdir);
+		    oodate = TRUE;
+		}
+	    }
+	}
+
+	fclose(fp);
+	if (!Lst_IsEmpty(missingFiles)) {
+	    if (DEBUG(META))
+		fprintf(debug_file, "%s: missing files: %s...\n",
+			fname, (char *)Lst_Datum(Lst_First(missingFiles)));
+	    oodate = TRUE;
+	    Lst_Destroy(missingFiles, (FreeProc *)free);
+	}
+    }
+    if (oodate && ignoreOODATE) {
+	/*
+	 * Target uses .OODATE, so we need to re-compute it.
+	 * We need to clean up what Make_DoAllVar() did.
+	 */
+	Var_Delete(ALLSRC, gn);
+	Var_Delete(OODATE, gn);
+	gn->flags &= ~DONE_ALLSRC;
+    }
+    return oodate;
+}
+
+/* support for compat mode */
+
+static int childPipe[2];
+
+void
+meta_compat_start(void)
+{
+#ifdef USE_FILEMON_ONCE
+    /*
+     * We need to re-open filemon for each cmd.
+     */
+    BuildMon *pbm = &Mybm;
+    
+    if (pbm->mfp != NULL && useFilemon) {
+	filemon_open(pbm);
+    } else {
+	pbm->mon_fd = pbm->filemon_fd = -1;
+    }
+#endif
+    if (pipe(childPipe) < 0)
+	Punt("Cannot create pipe: %s", strerror(errno));
+    /* Set close-on-exec flag for both */
+    (void)fcntl(childPipe[0], F_SETFD, 1);
+    (void)fcntl(childPipe[1], F_SETFD, 1);
+}
+
+void
+meta_compat_child(void)
+{
+    meta_job_child(NULL);
+    if (dup2(childPipe[1], 1) < 0 ||
+	dup2(1, 2) < 0) {
+	execError("dup2", "pipe");
+	_exit(1);
+    }
+}
+
+void
+meta_compat_parent(void)
+{
+    FILE *fp;
+    char buf[BUFSIZ];
+    
+    close(childPipe[1]);			/* child side */
+    fp = fdopen(childPipe[0], "r");
+    while (fgets(buf, sizeof(buf), fp)) {
+	meta_job_output(NULL, buf, "");
+	printf("%s", buf);
+    }
+    fclose(fp);
+}
+
+#endif	/* USE_META */
diff --git a/devel/bmake/files/meta.h b/devel/bmake/files/meta.h
new file mode 100644
index 00000000000..e47ad89b677
--- /dev/null
+++ b/devel/bmake/files/meta.h
@@ -0,0 +1,54 @@
+/*      $NetBSD: meta.h,v 1.1.1.1 2011/06/18 22:18:04 bsiegert Exp $ */
+
+/*
+ * Things needed for 'meta' mode.
+ */
+/*
+ * Copyright (c) 2009-2010, Juniper Networks, Inc.
+ * 
+ * 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.  
+ * 3. Neither the name of the copyright holders nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission. 
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
+ * OWNER 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. 
+ */
+
+typedef struct BuildMon {
+    char	meta_fname[MAXPATHLEN];
+    int		filemon_fd;
+    int		mon_fd;
+    FILE	*mfp;
+} BuildMon;
+
+extern Boolean useMeta;
+
+struct Job;				/* not defined yet */
+void meta_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);
+void meta_job_output(struct Job *, char *, const char *);
+void meta_cmd_finish(void *);
+void meta_job_finish(struct Job *);
+Boolean meta_oodate(GNode *, Boolean);
+void meta_compat_start(void);
+void meta_compat_child(void);
+void meta_compat_parent(void);
diff --git a/devel/bmake/files/stresep.c b/devel/bmake/files/stresep.c
new file mode 100644
index 00000000000..42ad8d08a6c
--- /dev/null
+++ b/devel/bmake/files/stresep.c
@@ -0,0 +1,89 @@
+/*	$NetBSD: stresep.c,v 1.1.1.1 2011/06/18 22:18:07 bsiegert Exp $	*/
+
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * 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.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <sys/cdefs.h>
+
+#include <assert.h>
+#include <string.h>
+
+#if !defined(HAVE_STRESEP)
+char * stresep(char **stringp, const char *delim, int esc);
+/*
+ * Get next token from string *stringp, where tokens are possibly-empty
+ * strings separated by characters from delim. If esc is not NUL, then
+ * the characters followed by esc are ignored and are not taken into account
+ * when splitting the string.
+ *
+ * Writes NULs into the string at *stringp to end tokens.
+ * delim need not remain constant from call to call.
+ * On return, *stringp points past the last NUL written (if there might
+ * be further tokens), or is NULL (if there are definitely no more tokens).
+ *
+ * If *stringp is NULL, stresep returns NULL.
+ */
+char *
+stresep(char **stringp, const char *delim, int esc)
+{
+	char *s;
+	const char *spanp;
+	int c, sc;
+	char *tok;
+
+	if (stringp == NULL || delim == NULL)
+		return NULL;
+
+	if ((s = *stringp) == NULL)
+		return NULL;
+	for (tok = s;;) {
+		c = *s++;
+		while (esc != '\0' && c == esc) {
+			(void)strcpy(s - 1, s);
+			c = *s++;
+		}
+		spanp = delim;
+		do {
+			if ((sc = *spanp++) == c) {
+				if (c == 0)
+					s = NULL;
+				else
+					s[-1] = 0;
+				*stringp = s;
+				return tok;
+			}
+		} while (sc != 0);
+	}
+}
+#endif
+
diff --git a/devel/bmake/files/strlcpy.c b/devel/bmake/files/strlcpy.c
new file mode 100644
index 00000000000..f9b87ffbb3d
--- /dev/null
+++ b/devel/bmake/files/strlcpy.c
@@ -0,0 +1,63 @@
+/*	$NetBSD: strlcpy.c,v 1.1.1.1 2011/06/18 22:18:07 bsiegert Exp $	*/
+/*	$OpenBSD: strlcpy.c,v 1.7 2003/04/12 21:56:39 millert Exp $	*/
+
+/*
+ * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND TODD C. MILLER DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL TODD C. MILLER BE LIABLE
+ * FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+#ifndef HAVE_STRLCPY
+
+#include <sys/cdefs.h>
+
+#include <sys/types.h>
+#include <string.h>
+
+/*
+ * Copy src to string dst of size siz.  At most siz-1 characters
+ * will be copied.  Always NUL terminates (unless siz == 0).
+ * Returns strlen(src); if retval >= siz, truncation occurred.
+ */
+size_t
+strlcpy(char *dst, const char *src, size_t siz)
+{
+	char *d = dst;
+	const char *s = src;
+	size_t n = siz;
+
+	if (!dst || !src)
+		return 0;
+
+	/* Copy as many bytes as will fit */
+	if (n != 0 && --n != 0) {
+		do {
+			if ((*d++ = *s++) == 0)
+				break;
+		} while (--n != 0);
+	}
+
+	/* Not enough room in dst, add NUL and traverse rest of src */
+	if (n == 0) {
+		if (siz != 0)
+			*d = '\0';		/* NUL-terminate dst */
+		while (*s++)
+			;
+	}
+
+	return(s - src - 1);	/* count does not include NUL */
+}
+#endif