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Add support for .dinclude 

Like .sinclude missing file will be ignored.
Like .depend stale dependencies will be ignored.
Allows better implementation of auto depend.

Reviewed by: christos
Requested by: Bryan Drewery at FreeBSD.
This commit is contained in:
sjg 2016-02-18 05:02:49 +00:00
parent 71bb4da1c9
commit a6c0ebbea8
2 changed files with 22 additions and 9 deletions
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12
usr.bin/make/make.1
View File

@ -1,4 +1,4 @@
.\" $NetBSD: make.1,v 1.249 2015/06/05 07:33:40 wiz Exp $
.\" $NetBSD: make.1,v 1.250 2016/02/18 05:02:49 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 June 4, 2015
.Dd February 17, 2015
.Dt MAKE 1
.Os
.Sh NAME
@ -1530,12 +1530,20 @@ For compatibility with other versions of
.Nm
.Ql include file ...
is also accepted.
.Pp
If the include statement is written as
.Cm .-include
or as
.Cm .sinclude
then errors locating and/or opening include files are ignored.
.Pp
If the include statement is written as
.Cm .dinclude
not only are errors locating and/or opening include files ignored,
but stale dependencies within the included file will be ignored
just like
.Va .MAKE.DEPENDFILE .
.Pp
Conditional expressions are also preceded by a single dot as the first
character of a line.
The possible conditionals are as follows:

19
usr.bin/make/parse.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: parse.c,v 1.209 2016/01/17 17:45:21 christos Exp $ */
/* $NetBSD: parse.c,v 1.210 2016/02/18 05:02:49 sjg Exp $ */
/*
* Copyright (c) 1988, 1989, 1990, 1993
@ -69,14 +69,14 @@
*/
#ifndef MAKE_NATIVE
static char rcsid[] = "$NetBSD: parse.c,v 1.209 2016/01/17 17:45:21 christos Exp $";
static char rcsid[] = "$NetBSD: parse.c,v 1.210 2016/02/18 05:02:49 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 1.209 2016/01/17 17:45:21 christos Exp $");
__RCSID("$NetBSD: parse.c,v 1.210 2016/02/18 05:02:49 sjg Exp $");
#endif
#endif /* not lint */
#endif
@ -157,6 +157,7 @@ typedef struct IFile {
int lineno; /* current line number in file */
int first_lineno; /* line number of start of text */
int cond_depth; /* 'if' nesting when file opened */
Boolean depending; /* state of doing_depend on EOF */
char *P_str; /* point to base of string buffer */
char *P_ptr; /* point to next char of string buffer */
char *P_end; /* point to the end of string buffer */
@ -2139,7 +2140,7 @@ Parse_AddIncludeDir(char *dir)
*/
static void
Parse_include_file(char *file, Boolean isSystem, int silent)
Parse_include_file(char *file, Boolean isSystem, Boolean depinc, int silent)
{
struct loadedfile *lf;
char *fullname; /* full pathname of file */
@ -2239,6 +2240,9 @@ Parse_include_file(char *file, Boolean isSystem, int silent)
/* Start reading from this file next */
Parse_SetInput(fullname, 0, -1, loadedfile_nextbuf, lf);
curFile->lf = lf;
curFile->depending = doing_depend; /* restore this on EOF */
if (depinc)
doing_depend = depinc; /* only turn it on */
}
static void
@ -2288,7 +2292,7 @@ ParseDoInclude(char *line)
*/
file = Var_Subst(NULL, file, VAR_CMD, FALSE, TRUE, FALSE);
Parse_include_file(file, endc == '>', silent);
Parse_include_file(file, endc == '>', (*line == 'd'), silent);
free(file);
}
@ -2532,7 +2536,7 @@ ParseTraditionalInclude(char *line)
else
done = 1;
Parse_include_file(file, FALSE, silent);
Parse_include_file(file, FALSE, FALSE, silent);
}
free(all_files);
}
@ -2610,6 +2614,7 @@ ParseEOF(void)
assert(curFile->nextbuf != NULL);
doing_depend = curFile->depending; /* restore this */
/* get next input buffer, if any */
ptr = curFile->nextbuf(curFile->nextbuf_arg, &len);
curFile->P_ptr = ptr;
@ -2972,7 +2977,7 @@ Parse_File(const char *name, int fd)
continue;
}
if (strncmp(cp, "include", 7) == 0 ||
((cp[0] == 's' || cp[0] == '-') &&
((cp[0] == 'd' || cp[0] == 's' || cp[0] == '-') &&
strncmp(&cp[1], "include", 7) == 0)) {
ParseDoInclude(cp);
continue;