/*
 * make.h
 *
 * 88-10-01 v1.0	created by greg yachuk, placed in the public domain
 * 88-10-06 v1.1	changed prerequisite list handling
 *
 */

#define	MAXNEGTIME	0x80000000

#ifndef	TRUE
#define	TRUE	1
#define	FALSE	0
#endif

#define	equal(s,t)		(!strcmp((s),(t)))
#define	get_target(t)		hash_target((t), NULL)
#define	get_file(f)		hash_file((f), NULL)
#define	append_preq(t,p)	(fileptr*)append_node((char**)(t),(char**)(p),sizeof(fileptr*))
#define	append_shell(t,s)	(shellptr*)append_node((char**)(t),(char**)(s),sizeof(shellptr*))

typedef	unsigned short t_mask;

typedef	struct targnode
{
	t_mask	tmask;			/* mask to avoid string compares */
	struct targnode *tnext;		/* next target in global target list */
	struct filenode *tfile;		/* file node for this target */
	struct filenode **tpreq;	/* pre-req list for this target */
	struct shellnode **tshell;	/* command list for this target */
}	targnode, *targptr;

typedef	struct filenode
{
	t_mask	fmask;			/* mask to avoid string compares */
	char   *fname;			/* name of this file (targ, preq...) */
	long	ftime;			/* last MODIFY time for this file */
	struct filenode *fnext;		/* next file node in global file list */
}	filenode, *fileptr;

typedef	struct shellnode
{
	char   *scmd;			/* text of command */
	unsigned s_silent:1;		/* don't echo before executing */
	unsigned s_ignore:1;		/* ignore exit status */
	unsigned s_shell:1;		/* force spawning of command.com */
	struct shellnode *snext;	/* next shell node for a target */
	struct shellnode *slink;	/* next shell node in global list */
}	shellnode, *shellptr;

typedef	struct symnode
{
	t_mask	smask;			/* mask to avoid string compares */
	char   *sname;			/* name of a symbol */
	char   *svalue;			/* value of a symbol */
	struct symnode *snext;		/* next symbol node in global list */
}	symnode, *symptr;

extern targptr target_list;		/* global list of targets */
extern fileptr file_list;		/* global list of file nodes */
extern symptr  symbol_list;		/* global list of symbol nodes */
extern shellptr shell_list;		/* global list of shell nodes */

extern targptr first_targ;		/* first target (if nothing named) */
extern targptr suffix_targ;		/* target node of ".SUFFIXES" */

extern int depend;			/* -d */
extern int display;			/* -D */
extern int ignore;			/* -i */
extern int noexec;			/* -n */
extern int readdef;			/* -r */
extern int silent;			/* -s */
extern int touch;			/* -t */

#ifndef	MSDOS
char   *getenv();
#define	P_WAIT		1
#define	P_NOWAIT	2
#define	P_OVERLAY	3
#endif

#define	REGISTER	register