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Date:: Wed Mar 8 09:27:14 2023 UTC
Message:: portable: configure: split out dependencies Rather than assume all dependencies are required for all programs, split them out. This will make packaging easier, as well as splitting the code to use subprojects. Note that due to the use of config.h semantics, in most cases the got_compat.h header file is now at the top of the .c file it is included in, so that it can handle the system header inclusion properly.
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 1 dd038bc6 2021-09-21 thomas.ad /*
 2 dd038bc6 2021-09-21 thomas.ad  * Copyright (c) 2006 Nicholas Marriott <nicholas.marriott@gmail.com>
 3 dd038bc6 2021-09-21 thomas.ad  *
 4 dd038bc6 2021-09-21 thomas.ad  * Permission to use, copy, modify, and distribute this software for any
 5 dd038bc6 2021-09-21 thomas.ad  * purpose with or without fee is hereby granted, provided that the above
 6 dd038bc6 2021-09-21 thomas.ad  * copyright notice and this permission notice appear in all copies.
 7 dd038bc6 2021-09-21 thomas.ad  *
 8 dd038bc6 2021-09-21 thomas.ad  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 9 dd038bc6 2021-09-21 thomas.ad  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 dd038bc6 2021-09-21 thomas.ad  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 dd038bc6 2021-09-21 thomas.ad  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 dd038bc6 2021-09-21 thomas.ad  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
13 dd038bc6 2021-09-21 thomas.ad  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
14 dd038bc6 2021-09-21 thomas.ad  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 dd038bc6 2021-09-21 thomas.ad  */
16 dd038bc6 2021-09-21 thomas.ad 
17 dd038bc6 2021-09-21 thomas.ad #include <sys/types.h>
18 dd038bc6 2021-09-21 thomas.ad 
19 dd038bc6 2021-09-21 thomas.ad #include <err.h>
20 dd038bc6 2021-09-21 thomas.ad #include <stdarg.h>
21 dd038bc6 2021-09-21 thomas.ad #include <stdio.h>
22 dd038bc6 2021-09-21 thomas.ad #include <string.h>
23 dd038bc6 2021-09-21 thomas.ad #include <stdlib.h>
24 dd038bc6 2021-09-21 thomas.ad 
25 4fccd2fe 2023-03-08 thomas int vasprintf(char **, const char *, va_list);
26 4fccd2fe 2023-03-08 thomas 
27 dd038bc6 2021-09-21 thomas.ad int
28 dd038bc6 2021-09-21 thomas.ad asprintf(char **ret, const char *fmt, ...)
29 dd038bc6 2021-09-21 thomas.ad {
30 dd038bc6 2021-09-21 thomas.ad 	va_list	ap;
31 dd038bc6 2021-09-21 thomas.ad 	int	n;
32 dd038bc6 2021-09-21 thomas.ad 
33 dd038bc6 2021-09-21 thomas.ad 	va_start(ap, fmt);
34 dd038bc6 2021-09-21 thomas.ad 	n = vasprintf(ret, fmt, ap);
35 dd038bc6 2021-09-21 thomas.ad 	va_end(ap);
36 dd038bc6 2021-09-21 thomas.ad 
37 dd038bc6 2021-09-21 thomas.ad 	return (n);
38 dd038bc6 2021-09-21 thomas.ad }
39 dd038bc6 2021-09-21 thomas.ad 
40 dd038bc6 2021-09-21 thomas.ad int
41 dd038bc6 2021-09-21 thomas.ad vasprintf(char **ret, const char *fmt, va_list ap)
42 dd038bc6 2021-09-21 thomas.ad {
43 dd038bc6 2021-09-21 thomas.ad 	int	 n;
44 dd038bc6 2021-09-21 thomas.ad 	va_list  ap2;
45 dd038bc6 2021-09-21 thomas.ad 
46 dd038bc6 2021-09-21 thomas.ad 	va_copy(ap2, ap);
47 dd038bc6 2021-09-21 thomas.ad 
48 dd038bc6 2021-09-21 thomas.ad 	if ((n = vsnprintf(NULL, 0, fmt, ap)) < 0)
49 dd038bc6 2021-09-21 thomas.ad 		goto error;
50 dd038bc6 2021-09-21 thomas.ad 
51 dd038bc6 2021-09-21 thomas.ad 	*ret = malloc(n + 1);
52 dd038bc6 2021-09-21 thomas.ad 	if (*ret == NULL)
53 dd038bc6 2021-09-21 thomas.ad 		errx(1, "vasprintf: malloc failed");
54 dd038bc6 2021-09-21 thomas.ad 	if ((n = vsnprintf(*ret, n + 1, fmt, ap2)) < 0) {
55 dd038bc6 2021-09-21 thomas.ad 		free(*ret);
56 dd038bc6 2021-09-21 thomas.ad 		goto error;
57 dd038bc6 2021-09-21 thomas.ad 	}
58 dd038bc6 2021-09-21 thomas.ad 	va_end(ap2);
59 dd038bc6 2021-09-21 thomas.ad 
60 dd038bc6 2021-09-21 thomas.ad 	return (n);
61 dd038bc6 2021-09-21 thomas.ad 
62 dd038bc6 2021-09-21 thomas.ad error:
63 dd038bc6 2021-09-21 thomas.ad 	va_end(ap2);
64 dd038bc6 2021-09-21 thomas.ad 	*ret = NULL;
65 dd038bc6 2021-09-21 thomas.ad 	return (-1);
66 dd038bc6 2021-09-21 thomas.ad }