diff --git a/make.h b/make.h
new file mode 100644
index 00000000..1a78485d
--- /dev/null
+++ b/make.h
@@ -0,0 +1,274 @@
+/* Copyright (C) 1988, 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Make is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Make; see the file COPYING.  If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+#define _GNU_SOURCE
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <signal.h>
+#include <stdio.h>
+#include <ctype.h>
+
+#ifndef	isblank
+#define	isblank(c)	((c) == ' ' || (c) == '\t')
+#endif
+
+#if	!defined(NSIG) && defined(_NSIG)
+#define	NSIG	_NSIG
+#endif
+
+#ifdef	__STDC__
+#define	SIGHANDLER	void *
+#else
+#define	SIGHANDLER	int (*)()
+#endif
+#define	SIGNAL(sig, handler) \
+  ((SIGHANDLER) signal((sig), (SIGHANDLER) (handler)))
+
+#ifndef	sigmask
+#define	sigmask(sig)	(1 << ((sig) - 1))
+#endif
+
+#if	defined(POSIX) || defined(__GNU_LIBRARY__)
+#include <limits.h>
+#ifndef	PATH_MAX
+#define	GET_PATH_MAX	pathconf ("/", _PC_PATH_MAX)
+#endif
+#else	/* Not POSIX.  */
+#include <sys/param.h>
+#ifndef	PATH_MAX
+#ifndef MAXPATHLEN
+#define MAXPATHLEN 1024
+#endif	/* No MAXPATHLEN.  */
+#define	PATH_MAX	MAXPATHLEN
+#endif	/* No PATH_MAX.  */
+#endif	/* POSIX.  */
+#ifdef	PATH_MAX
+#define	PATH_VAR(var)	char var[PATH_MAX]
+#else
+#define	PATH_VAR(var)	char *var = (char *) alloca (GET_PATH_MAX)
+#endif
+
+#ifdef	uts
+#ifdef	S_ISREG
+#undef	S_ISREG
+#endif
+#ifdef	S_ISDIR
+#undef	S_ISDIR
+#endif
+#endif	/* uts.  */
+
+#ifndef	S_ISREG
+#define	S_ISREG(mode)	(((mode) & S_IFMT) == S_IFREG)
+#endif
+#ifndef	S_ISDIR
+#define	S_ISDIR(mode)	(((mode) & S_IFMT) == S_IFDIR)
+#endif
+
+
+#if	(defined (STDC_HEADERS) || defined (__GNU_LIBRARY__) \
+	 || defined (POSIX))
+#include <stdlib.h>
+#include <string.h>
+#define	ANSI_STRING
+#else	/* No standard headers.  */
+
+#ifdef	USG
+
+#include <string.h>
+#include <memory.h>
+#define	ANSI_STRING
+
+#else	/* Not USG.  */
+
+#ifdef	NeXT
+
+#include <string.h>
+
+#else	/* Not NeXT.  */
+
+#include <strings.h>
+
+#ifndef	bcmp
+extern int bcmp ();
+#endif
+#ifndef	bzero
+extern void bzero ();
+#endif
+#ifndef	bcopy
+extern void bcopy ();
+#endif
+
+#endif	/* NeXT. */
+
+#endif	/* USG.  */
+
+extern char *malloc (), *realloc ();
+extern void free ();
+
+#endif	/* Standard headers.  */
+
+#ifdef	ANSI_STRING
+#define	index(s, c)	strchr((s), (c))
+#define	rindex(s, c)	strrchr((s), (c))
+
+#define bcmp(s1, s2, n)	memcmp ((s1), (s2), (n))
+#define bzero(s, n)	memset ((s), 0, (n))
+#define bcopy(s, d, n)	memcpy ((d), (s), (n))
+#endif
+#undef	ANSI_STRING
+
+
+#ifdef	__GNUC__
+#undef	alloca
+#define	alloca(n)	__builtin_alloca (n)
+#else	/* Not GCC.  */
+#ifdef	sparc
+#include <alloca.h>
+#else	/* Not sparc.  */
+extern char *alloca ();
+#endif	/* sparc.  */
+#endif	/* GCC.  */
+
+#ifndef	iAPX286
+#define streq(a, b) \
+  ((a) == (b) || \
+   (*(a) == *(b) && (*(a) == '\0' || !strcmp ((a) + 1, (b) + 1))))
+#else
+/* Buggy compiler can't handle this.  */
+#define streq(a, b) (strcmp ((a), (b)) == 0)
+#endif
+
+/* Add to VAR the hashing value of C, one character in a name.  */
+#define	HASH(var, c) \
+  ((var += (c)), (var = ((var) << 7) + ((var) >> 20)))
+
+#if defined(__GNUC__) || defined(ENUM_BITFIELDS)
+#define	ENUM_BITFIELD(bits)	:bits
+#else
+#define	ENUM_BITFIELD(bits)
+#endif
+
+extern void die ();
+extern void message (), fatal (), error ();
+extern void makefile_error (), makefile_fatal ();
+extern void pfatal_with_name (), perror_with_name ();
+extern char *savestring (), *concat ();
+extern char *xmalloc (), *xrealloc ();
+extern char *find_next_token (), *next_token (), *end_of_token ();
+extern void collapse_continuations (), remove_comments ();
+extern char *sindex (), *lindex ();
+extern int alpha_compare ();
+extern void print_spaces ();
+extern struct dep *copy_dep_chain ();
+extern char *find_percent ();
+
+#ifndef	NO_ARCHIVES
+extern int ar_name ();
+extern void ar_parse_name ();
+extern int ar_touch ();
+extern time_t ar_member_date ();
+#endif
+
+extern void dir_load ();
+extern int dir_file_exists_p (), file_exists_p (), file_impossible_p ();
+extern void file_impossible ();
+extern char *dir_name ();
+
+extern void define_default_variables ();
+extern void set_default_suffixes (), install_default_implicit_rules ();
+extern void convert_to_pattern (), count_implicit_rule_limits ();
+extern void create_pattern_rule ();
+
+extern void build_vpath_lists (), construct_vpath_list ();
+extern int vpath_search ();
+
+extern void construct_include_path ();
+extern void uniquize_deps ();
+
+extern int update_goal_chain ();
+extern void notice_finished_file ();
+
+extern void user_access (), make_access (), child_access ();
+
+
+#if	defined (VFORK_MISSING) || (defined(USG) && !defined(HAVE_VFORK))
+#define	vfork	fork
+#define	VFORK_NAME	"fork"
+#else	/* Have vfork or not USG.  */
+#define	VFORK_NAME	"vfork"
+#endif	/* USG and don't have vfork.  */
+
+#if	defined(__GNU_LIBRARY__) || defined(POSIX)
+
+#include <unistd.h>
+
+#else
+
+#ifndef	USG
+extern int sigsetmask ();
+extern int sigblock ();
+#endif
+extern int kill ();
+extern void abort (), exit ();
+extern int unlink (), stat ();
+extern void qsort ();
+extern int atoi ();
+extern int pipe (), close (), read (), write (), open ();
+extern long int lseek ();
+extern char *ctime ();
+#endif	/* GNU C library or POSIX.  */
+
+#if	defined(USG) || defined(POSIX) && !defined(__GNU_LIBRARY__)
+extern char *getcwd ();
+#ifdef	PATH_MAX
+#define	getwd(buf)	getcwd (buf, PATH_MAX - 2)
+#else
+#define	getwd(buf)	getcwd (buf, GET_PATH_MAX - 2)
+#endif
+#else	/* USG or POSIX and not GNU C library.  */
+extern char *getwd ();
+#endif	/* Not USG or POSIX, or maybe GNU C library.  */
+
+#if !defined(__GNU_LIBRARY__) && (!defined(vfork) || !defined(POSIX))
+#ifdef	POSIX
+extern pid_t vfork ();
+#else
+extern int vfork ();
+#endif
+#endif
+
+extern char **environ;
+
+extern char *reading_filename;
+extern unsigned int *reading_lineno_ptr;
+
+extern int just_print_flag, silent_flag, ignore_errors_flag, keep_going_flag;
+extern int debug_flag, print_data_base_flag, question_flag, touch_flag;
+extern int env_overrides, no_builtin_rules_flag, print_version_flag;
+extern int print_directory_flag;
+
+extern unsigned int job_slots;
+extern double max_load_average;
+
+extern char *program;
+
+extern unsigned int makelevel;
+
+
+#define DEBUGPR(msg)							\
+  if (debug_flag) { print_spaces (depth); printf (msg, file->name);	\
+		    fflush (stdout);  } else