1 #include <stdio.h>
2 #include "config.h"
3 #include <stdlib.h>
4
5 /**
6 * A little utility function to generate header info.
7 *
8 * Yes, it would be possible to do this using more "native" autoconf
9 * features, but I personally find this approach to be cleaner.
10 *
11 * The output of this program is generally written to art_config.h,
12 * which is installed in libart's include dir.
13 **/
14
15 static void
die(char * why)16 die (char *why)
17 {
18 fprintf (stderr, "gen_art_config: %s\n", why);
19 exit (1);
20 }
21
22 int
main(int argc,char ** argv)23 main (int argc, char **argv)
24 {
25 printf ("/* Automatically generated by gen_art_config.c */\n"
26 "\n"
27 "#define ART_SIZEOF_CHAR %d\n"
28 "#define ART_SIZEOF_SHORT %d\n"
29 "#define ART_SIZEOF_INT %d\n"
30 "#define ART_SIZEOF_LONG %d\n"
31 "\n",
32 sizeof(char), sizeof(short), sizeof(int), sizeof(long));
33
34 if (sizeof(char) == 1)
35 printf ("typedef unsigned char art_u8;\n");
36 else
37 die ("sizeof(char) != 1");
38
39 if (sizeof(short) == 2)
40 printf ("typedef unsigned short art_u16;\n");
41 else
42 die ("sizeof(short) != 2");
43
44 if (sizeof(int) == 4)
45 printf ("typedef unsigned int art_u32;\n");
46 else if (sizeof(long) == 4)
47 printf ("typedef unsigned long art_u32;\n");
48 else
49 die ("sizeof(int) != 4 and sizeof(long) != 4");
50
51 return 0;
52 }
53