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make.h revision 1.133
      1 /*	$NetBSD: make.h,v 1.133 2020/08/30 14:11:42 rillig Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1988, 1989, 1990, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * This code is derived from software contributed to Berkeley by
      8  * Adam de Boor.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. Neither the name of the University nor the names of its contributors
     19  *    may be used to endorse or promote products derived from this software
     20  *    without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     32  * SUCH DAMAGE.
     33  *
     34  *	from: @(#)make.h	8.3 (Berkeley) 6/13/95
     35  */
     36 
     37 /*
     38  * Copyright (c) 1989 by Berkeley Softworks
     39  * All rights reserved.
     40  *
     41  * This code is derived from software contributed to Berkeley by
     42  * Adam de Boor.
     43  *
     44  * Redistribution and use in source and binary forms, with or without
     45  * modification, are permitted provided that the following conditions
     46  * are met:
     47  * 1. Redistributions of source code must retain the above copyright
     48  *    notice, this list of conditions and the following disclaimer.
     49  * 2. Redistributions in binary form must reproduce the above copyright
     50  *    notice, this list of conditions and the following disclaimer in the
     51  *    documentation and/or other materials provided with the distribution.
     52  * 3. All advertising materials mentioning features or use of this software
     53  *    must display the following acknowledgement:
     54  *	This product includes software developed by the University of
     55  *	California, Berkeley and its contributors.
     56  * 4. Neither the name of the University nor the names of its contributors
     57  *    may be used to endorse or promote products derived from this software
     58  *    without specific prior written permission.
     59  *
     60  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     61  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     62  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     63  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     64  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     65  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     66  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     67  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     68  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     69  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     70  * SUCH DAMAGE.
     71  *
     72  *	from: @(#)make.h	8.3 (Berkeley) 6/13/95
     73  */
     74 
     75 /*-
     76  * make.h --
     77  *	The global definitions for pmake
     78  */
     79 
     80 #ifndef MAKE_MAKE_H
     81 #define MAKE_MAKE_H
     82 
     83 #include <sys/types.h>
     84 #include <sys/param.h>
     85 
     86 #include <assert.h>
     87 #include <ctype.h>
     88 #include <fcntl.h>
     89 #include <stdio.h>
     90 #include <stdlib.h>
     91 #include <string.h>
     92 #include <unistd.h>
     93 
     94 #ifdef BSD4_4
     95 # include <sys/cdefs.h>
     96 #endif
     97 
     98 #ifndef FD_CLOEXEC
     99 #define FD_CLOEXEC 1
    100 #endif
    101 
    102 #if defined(__GNUC__)
    103 #define	MAKE_GNUC_PREREQ(x, y)						\
    104 	((__GNUC__ == (x) && __GNUC_MINOR__ >= (y)) ||			\
    105 	 (__GNUC__ > (x)))
    106 #else /* defined(__GNUC__) */
    107 #define	MAKE_GNUC_PREREQ(x, y)	0
    108 #endif /* defined(__GNUC__) */
    109 
    110 #if MAKE_GNUC_PREREQ(2, 7)
    111 #define	MAKE_ATTR_UNUSED	__attribute__((__unused__))
    112 #else
    113 #define	MAKE_ATTR_UNUSED	/* delete */
    114 #endif
    115 
    116 #if MAKE_GNUC_PREREQ(2, 5)
    117 #define	MAKE_ATTR_DEAD		__attribute__((__noreturn__))
    118 #elif defined(__GNUC__)
    119 #define	MAKE_ATTR_DEAD		__volatile
    120 #else
    121 #define	MAKE_ATTR_DEAD		/* delete */
    122 #endif
    123 
    124 #if MAKE_GNUC_PREREQ(2, 7)
    125 #define MAKE_ATTR_PRINTFLIKE(fmtarg, firstvararg)	\
    126 	    __attribute__((__format__ (__printf__, fmtarg, firstvararg)))
    127 #else
    128 #define MAKE_ATTR_PRINTFLIKE(fmtarg, firstvararg)	/* delete */
    129 #endif
    130 
    131 /*
    132  * A boolean type is defined as an integer, not an enum. This allows a
    133  * boolean argument to be an expression that isn't strictly 0 or 1 valued.
    134  */
    135 
    136 #ifdef USE_DOUBLE_BOOLEAN
    137 /* During development, to find type mismatches in function declarations. */
    138 typedef double Boolean;
    139 #elif defined(USE_UCHAR_BOOLEAN)
    140 /* During development, to find code that depends on the exact value of TRUE or
    141  * that stores other values in Boolean variables. */
    142 typedef unsigned char Boolean;
    143 #define TRUE ((unsigned char)0xFF)
    144 #define FALSE ((unsigned char)0x00)
    145 #else
    146 typedef int Boolean;
    147 #endif
    148 #ifndef TRUE
    149 #define TRUE	1
    150 #endif /* TRUE */
    151 #ifndef FALSE
    152 #define FALSE	0
    153 #endif /* FALSE */
    154 
    155 #include "lst.h"
    156 #include "enum.h"
    157 #include "hash.h"
    158 #include "config.h"
    159 #include "buf.h"
    160 #include "make_malloc.h"
    161 
    162 typedef enum  {
    163     UNMADE,			/* Not examined yet */
    164     DEFERRED,			/* Examined once (building child) */
    165     REQUESTED,			/* on toBeMade list */
    166     BEINGMADE,			/* Target is already being made.
    167 				 * Indicates a cycle in the graph. */
    168     MADE,			/* Was out-of-date and has been made */
    169     UPTODATE,			/* Was already up-to-date */
    170     ERROR,			/* An error occurred while it was being
    171 				 * made (used only in compat mode) */
    172     ABORTED			/* The target was aborted due to an error
    173 				 * making an inferior (compat). */
    174 } GNodeMade;
    175 
    176 /* The OP_ constants are used when parsing a dependency line as a way of
    177  * communicating to other parts of the program the way in which a target
    178  * should be made.
    179  *
    180  * These constants are bitwise-OR'ed together and placed in the 'type' field
    181  * of each node. Any node that has a 'type' field which satisfies the OP_NOP
    182  * function was never never on the left-hand side of an operator, though it
    183  * may have been on the right-hand side... */
    184 typedef enum {
    185     /* Execution of commands depends on children (:) */
    186     OP_DEPENDS		= 1 << 0,
    187     /* Always execute commands (!) */
    188     OP_FORCE		= 1 << 1,
    189     /* Execution of commands depends on children per line (::) */
    190     OP_DOUBLEDEP	= 1 << 2,
    191 
    192     OP_OPMASK		= OP_DEPENDS|OP_FORCE|OP_DOUBLEDEP,
    193 
    194     /* Don't care if the target doesn't exist and can't be created */
    195     OP_OPTIONAL		= 1 << 3,
    196     /* Use associated commands for parents */
    197     OP_USE		= 1 << 4,
    198     /* Target is never out of date, but always execute commands anyway.
    199      * Its time doesn't matter, so it has none...sort of */
    200     OP_EXEC	  	= 1 << 5,
    201     /* Ignore errors when creating the node */
    202     OP_IGNORE		= 1 << 6,
    203     /* Don't remove the target when interrupted */
    204     OP_PRECIOUS		= 1 << 7,
    205     /* Don't echo commands when executed */
    206     OP_SILENT		= 1 << 8,
    207     /* Target is a recursive make so its commands should always be executed
    208      * when it is out of date, regardless of the state of the -n or -t flags */
    209     OP_MAKE		= 1 << 9,
    210     /* Target is out-of-date only if any of its children was out-of-date */
    211     OP_JOIN		= 1 << 10,
    212     /* Assume the children of the node have been already made */
    213     OP_MADE		= 1 << 11,
    214     /* Special .BEGIN, .END, .INTERRUPT */
    215     OP_SPECIAL		= 1 << 12,
    216     /* Like .USE, only prepend commands */
    217     OP_USEBEFORE	= 1 << 13,
    218     /* The node is invisible to its parents. I.e. it doesn't show up in the
    219      * parents' local variables. */
    220     OP_INVISIBLE	= 1 << 14,
    221     /* The node is exempt from normal 'main target' processing in parse.c */
    222     OP_NOTMAIN		= 1 << 15,
    223     /* Not a file target; run always */
    224     OP_PHONY		= 1 << 16,
    225     /* Don't search for file in the path */
    226     OP_NOPATH		= 1 << 17,
    227     /* .WAIT phony node */
    228     OP_WAIT		= 1 << 18,
    229     /* .NOMETA do not create a .meta file */
    230     OP_NOMETA		= 1 << 19,
    231     /* .META we _do_ want a .meta file */
    232     OP_META		= 1 << 20,
    233     /* Do not compare commands in .meta file */
    234     OP_NOMETA_CMP	= 1 << 21,
    235     /* Possibly a submake node */
    236     OP_SUBMAKE		= 1 << 22,
    237 
    238     /* Attributes applied by PMake */
    239 
    240     /* The node is a transformation rule */
    241     OP_TRANSFORM	= 1 << 31,
    242     /* Target is a member of an archive */
    243     OP_MEMBER		= 1 << 30,
    244     /* Target is a library */
    245     OP_LIB		= 1 << 29,
    246     /* Target is an archive construct */
    247     OP_ARCHV		= 1 << 28,
    248     /* Target has all the commands it should. Used when parsing to catch
    249      * multiple commands for a target. */
    250     OP_HAS_COMMANDS	= 1 << 27,
    251     /* Saving commands on .END (Compat) */
    252     OP_SAVE_CMDS	= 1 << 26,
    253     /* Already processed by Suff_FindDeps */
    254     OP_DEPS_FOUND	= 1 << 25,
    255     /* Node found while expanding .ALLSRC */
    256     OP_MARK		= 1 << 24
    257 } GNodeType;
    258 
    259 typedef enum {
    260     REMAKE	= 0x0001,	/* this target needs to be (re)made */
    261     CHILDMADE	= 0x0002,	/* children of this target were made */
    262     FORCE	= 0x0004,	/* children don't exist, and we pretend made */
    263     DONE_WAIT	= 0x0008,	/* Set by Make_ProcessWait() */
    264     DONE_ORDER	= 0x0010,	/* Build requested by .ORDER processing */
    265     FROM_DEPEND	= 0x0020,	/* Node created from .depend */
    266     DONE_ALLSRC	= 0x0040,	/* We do it once only */
    267     CYCLE	= 0x1000,	/* Used by MakePrintStatus */
    268     DONECYCLE	= 0x2000,	/* Used by MakePrintStatus */
    269     INTERNAL	= 0x4000	/* Internal use only */
    270 } GNodeFlags;
    271 
    272 /* A graph node represents a target that can possibly be made, including its
    273  * relation to other targets and a lot of other details. */
    274 typedef struct GNode {
    275     /* The target's name, such as "clean" or "make.c" */
    276     char *name;
    277     /* The unexpanded name of a .USE node */
    278     char *uname;
    279     /* The full pathname of the file belonging to the target.
    280      * XXX: What about .PHONY targets? These don't have an associated path. */
    281     char *path;
    282 
    283     /* The type of operator used to define the sources (see the OP flags below).
    284      * XXX: This looks like a wild mixture of type and flags. */
    285     GNodeType type;
    286     /* whether it is involved in this invocation of make */
    287     GNodeFlags flags;
    288 
    289     /* The state of processing on this node */
    290     GNodeMade made;
    291     int unmade;			/* The number of unmade children */
    292 
    293     time_t mtime;		/* Its modification time */
    294     struct GNode *cmgn;		/* The youngest child */
    295 
    296     /* The GNodes for which this node is an implied source. May be empty.
    297      * For example, when there is an inference rule for .c.o, the node for
    298      * file.c has the node for file.o in this list. */
    299     Lst implicitParents;
    300 
    301     /* Other nodes of the same name for the :: operator. */
    302     Lst cohorts;
    303 
    304     /* The nodes that depend on this one, or in other words, the nodes for
    305      * which this is a source. */
    306     Lst parents;
    307     /* The nodes on which this one depends. */
    308     Lst children;
    309 
    310     /* .ORDER nodes we need made. The nodes that must be made (if they're
    311      * made) before this node can be made, but that do not enter into the
    312      * datedness of this node. */
    313     Lst order_pred;
    314     /* .ORDER nodes who need us. The nodes that must be made (if they're made
    315      * at all) after this node is made, but that do not depend on this node,
    316      * in the normal sense. */
    317     Lst order_succ;
    318 
    319     /* #n for this cohort */
    320     char cohort_num[8];
    321     /* The number of unmade instances on the cohorts list */
    322     int unmade_cohorts;
    323     /* Pointer to the first instance of a '::' node; only set when on a
    324      * cohorts list */
    325     struct GNode *centurion;
    326 
    327     /* Last time (sequence number) we tried to make this node */
    328     unsigned int checked;
    329 
    330     /* The "local" variables that are specific to this target and this target
    331      * only, such as $@, $<, $?. */
    332     Hash_Table context;
    333 
    334     /* The commands to be given to a shell to create this target. */
    335     Lst commands;
    336 
    337     /* Suffix for the node (determined by Suff_FindDeps and opaque to everyone
    338      * but the Suff module) */
    339     struct Suff *suffix;
    340 
    341     /* filename where the GNode got defined */
    342     const char *fname;
    343     /* line number where the GNode got defined */
    344     int lineno;
    345 } GNode;
    346 
    347 #define NoExecute(gn) ((gn->type & OP_MAKE) ? noRecursiveExecute : noExecute)
    348 /*
    349  * OP_NOP will return TRUE if the node with the given type was not the
    350  * object of a dependency operator
    351  */
    352 #define OP_NOP(t)	(((t) & OP_OPMASK) == 0x00000000)
    353 
    354 #define OP_NOTARGET (OP_NOTMAIN|OP_USE|OP_EXEC|OP_TRANSFORM)
    355 
    356 /*
    357  * The TARG_ constants are used when calling the Targ_FindNode and
    358  * Targ_FindList functions in targ.c. They simply tell the functions what to
    359  * do if the desired node(s) is (are) not found. If the TARG_CREATE constant
    360  * is given, a new, empty node will be created for the target, placed in the
    361  * table of all targets and its address returned. If TARG_NOCREATE is given,
    362  * a NULL pointer will be returned.
    363  */
    364 #define TARG_NOCREATE	0x00	  /* don't create it */
    365 #define TARG_CREATE	0x01	  /* create node if not found */
    366 #define TARG_NOHASH	0x02	  /* don't look in/add to hash table */
    367 
    368 /*
    369  * Error levels for parsing. PARSE_FATAL means the process cannot continue
    370  * once the makefile has been parsed. PARSE_WARNING means it can. Passed
    371  * as the first argument to Parse_Error.
    372  */
    373 #define PARSE_INFO	3
    374 #define PARSE_WARNING	2
    375 #define PARSE_FATAL	1
    376 
    377 /*
    378  * Values returned by Cond_Eval.
    379  */
    380 typedef enum {
    381     COND_PARSE,			/* Parse the next lines */
    382     COND_SKIP,			/* Skip the next lines */
    383     COND_INVALID		/* Not a conditional statement */
    384 } CondEvalResult;
    385 
    386 /*
    387  * Definitions for the "local" variables. Used only for clarity.
    388  */
    389 #define TARGET	  	  "@" 	/* Target of dependency */
    390 #define OODATE	  	  "?" 	/* All out-of-date sources */
    391 #define ALLSRC	  	  ">" 	/* All sources */
    392 #define IMPSRC	  	  "<" 	/* Source implied by transformation */
    393 #define PREFIX	  	  "*" 	/* Common prefix */
    394 #define ARCHIVE	  	  "!" 	/* Archive in "archive(member)" syntax */
    395 #define MEMBER	  	  "%" 	/* Member in "archive(member)" syntax */
    396 
    397 #define FTARGET           "@F"  /* file part of TARGET */
    398 #define DTARGET           "@D"  /* directory part of TARGET */
    399 #define FIMPSRC           "<F"  /* file part of IMPSRC */
    400 #define DIMPSRC           "<D"  /* directory part of IMPSRC */
    401 #define FPREFIX           "*F"  /* file part of PREFIX */
    402 #define DPREFIX           "*D"  /* directory part of PREFIX */
    403 
    404 /*
    405  * Global Variables
    406  */
    407 extern Lst  	create;	    	/* The list of target names specified on the
    408 				 * command line. used to resolve #if
    409 				 * make(...) statements */
    410 extern Lst     	dirSearchPath; 	/* The list of directories to search when
    411 				 * looking for targets */
    412 
    413 extern Boolean	compatMake;	/* True if we are make compatible */
    414 extern Boolean	ignoreErrors;  	/* True if should ignore all errors */
    415 extern Boolean  beSilent;    	/* True if should print no commands */
    416 extern Boolean  noExecute;    	/* True if should execute nothing */
    417 extern Boolean  noRecursiveExecute;    	/* True if should execute nothing */
    418 extern Boolean  allPrecious;   	/* True if every target is precious */
    419 extern Boolean  deleteOnError;	/* True if failed targets should be deleted */
    420 extern Boolean  keepgoing;    	/* True if should continue on unaffected
    421 				 * portions of the graph when have an error
    422 				 * in one portion */
    423 extern Boolean 	touchFlag;    	/* TRUE if targets should just be 'touched'
    424 				 * if out of date. Set by the -t flag */
    425 extern Boolean 	queryFlag;    	/* TRUE if we aren't supposed to really make
    426 				 * anything, just see if the targets are out-
    427 				 * of-date */
    428 extern Boolean	doing_depend;	/* TRUE if processing .depend */
    429 
    430 extern Boolean	checkEnvFirst;	/* TRUE if environment should be searched for
    431 				 * variables before the global context */
    432 
    433 extern Boolean	parseWarnFatal;	/* TRUE if makefile parsing warnings are
    434 				 * treated as errors */
    435 
    436 extern Boolean	varNoExportEnv;	/* TRUE if we should not export variables
    437 				 * set on the command line to the env. */
    438 
    439 extern GNode    *DEFAULT;    	/* .DEFAULT rule */
    440 
    441 extern GNode	*VAR_INTERNAL;	/* Variables defined internally by make
    442 				 * which should not override those set by
    443 				 * makefiles.
    444 				 */
    445 extern GNode    *VAR_GLOBAL;   	/* Variables defined in a global context, e.g
    446 				 * in the Makefile itself */
    447 extern GNode    *VAR_CMD;    	/* Variables defined on the command line */
    448 extern char    	var_Error[];   	/* Value returned by Var_Parse when an error
    449 				 * is encountered. It actually points to
    450 				 * an empty string, so naive callers needn't
    451 				 * worry about it. */
    452 
    453 extern time_t 	now;	    	/* The time at the start of this whole
    454 				 * process */
    455 
    456 extern Boolean	oldVars;    	/* Do old-style variable substitution */
    457 
    458 extern Lst	sysIncPath;	/* The system include path. */
    459 extern Lst	defIncPath;	/* The default include path. */
    460 
    461 extern char	curdir[];	/* Startup directory */
    462 extern char	*progname;	/* The program name */
    463 extern char	*makeDependfile; /* .depend */
    464 extern char	**savedEnv;	 /* if we replaced environ this will be non-NULL */
    465 
    466 extern int	makelevel;
    467 
    468 /*
    469  * We cannot vfork() in a child of vfork().
    470  * Most systems do not enforce this but some do.
    471  */
    472 #define vFork() ((getpid() == myPid) ? vfork() : fork())
    473 extern pid_t	myPid;
    474 
    475 #define	MAKEFLAGS	".MAKEFLAGS"
    476 #define	MAKEOVERRIDES	".MAKEOVERRIDES"
    477 #define	MAKE_JOB_PREFIX	".MAKE.JOB.PREFIX" /* prefix for job target output */
    478 #define	MAKE_EXPORTED	".MAKE.EXPORTED"   /* variables we export */
    479 #define	MAKE_MAKEFILES	".MAKE.MAKEFILES"  /* all the makefiles we read */
    480 #define	MAKE_LEVEL	".MAKE.LEVEL"	   /* recursion level */
    481 #define MAKEFILE_PREFERENCE ".MAKE.MAKEFILE_PREFERENCE"
    482 #define MAKE_DEPENDFILE	".MAKE.DEPENDFILE" /* .depend */
    483 #define MAKE_MODE	".MAKE.MODE"
    484 #ifndef MAKE_LEVEL_ENV
    485 # define MAKE_LEVEL_ENV	"MAKELEVEL"
    486 #endif
    487 
    488 /*
    489  * debug control:
    490  *	There is one bit per module.  It is up to the module what debug
    491  *	information to print.
    492  */
    493 extern FILE *debug_file;	/* Output is written here - default stderr */
    494 extern int debug;
    495 #define	DEBUG_ARCH	0x00001
    496 #define	DEBUG_COND	0x00002
    497 #define	DEBUG_DIR	0x00004
    498 #define	DEBUG_GRAPH1	0x00008
    499 #define	DEBUG_GRAPH2	0x00010
    500 #define	DEBUG_JOB	0x00020
    501 #define	DEBUG_MAKE	0x00040
    502 #define	DEBUG_SUFF	0x00080
    503 #define	DEBUG_TARG	0x00100
    504 #define	DEBUG_VAR	0x00200
    505 #define DEBUG_FOR	0x00400
    506 #define DEBUG_SHELL	0x00800
    507 #define DEBUG_ERROR	0x01000
    508 #define DEBUG_LOUD	0x02000
    509 #define DEBUG_META	0x04000
    510 #define DEBUG_HASH	0x08000
    511 
    512 #define DEBUG_GRAPH3	0x10000
    513 #define DEBUG_SCRIPT	0x20000
    514 #define DEBUG_PARSE	0x40000
    515 #define DEBUG_CWD	0x80000
    516 
    517 #define DEBUG_LINT	0x100000
    518 
    519 #define CONCAT(a,b)	a##b
    520 
    521 #define	DEBUG(module)	(debug & CONCAT(DEBUG_,module))
    522 
    523 #include "nonints.h"
    524 
    525 int Make_TimeStamp(GNode *, GNode *);
    526 Boolean Make_OODate(GNode *);
    527 void Make_ExpandUse(Lst);
    528 time_t Make_Recheck(GNode *);
    529 void Make_HandleUse(GNode *, GNode *);
    530 void Make_Update(GNode *);
    531 void Make_DoAllVar(GNode *);
    532 Boolean Make_Run(Lst);
    533 int dieQuietly(GNode *, int);
    534 void PrintOnError(GNode *, const char *);
    535 void Main_ExportMAKEFLAGS(Boolean);
    536 Boolean Main_SetObjdir(const char *, ...) MAKE_ATTR_PRINTFLIKE(1, 2);
    537 int mkTempFile(const char *, char **);
    538 int str2Lst_Append(Lst, char *, const char *);
    539 int cached_lstat(const char *, void *);
    540 int cached_stat(const char *, void *);
    541 void GNode_FprintDetails(FILE *, const char *, const GNode *, const char *);
    542 
    543 #ifdef __GNUC__
    544 #define UNCONST(ptr)	({ 		\
    545     union __unconst {			\
    546 	const void *__cp;		\
    547 	void *__p;			\
    548     } __d;				\
    549     __d.__cp = ptr, __d.__p; })
    550 #else
    551 #define UNCONST(ptr)	(void *)(ptr)
    552 #endif
    553 
    554 #ifndef MIN
    555 #define MIN(a, b) ((a < b) ? a : b)
    556 #endif
    557 #ifndef MAX
    558 #define MAX(a, b) ((a > b) ? a : b)
    559 #endif
    560 
    561 /* At least GNU/Hurd systems lack hardcoded MAXPATHLEN/PATH_MAX */
    562 #include <limits.h>
    563 #ifndef MAXPATHLEN
    564 #define MAXPATHLEN	4096
    565 #endif
    566 #ifndef PATH_MAX
    567 #define PATH_MAX	MAXPATHLEN
    568 #endif
    569 
    570 #if defined(SYSV)
    571 #define KILLPG(pid, sig)	kill(-(pid), (sig))
    572 #else
    573 #define KILLPG(pid, sig)	killpg((pid), (sig))
    574 #endif
    575 
    576 #endif /* MAKE_MAKE_H */
    577