1 /* 2 * POSIX allows PATH_MAX to not be defined, see 3 * http://pubs.opengroup.org/onlinepubs/9699919799/functions/sysconf.html; 4 * the GNU Hurd is an example of a system not having it. 5 * 6 * Arguably, it would be better to test sysconf(_SC_PATH_MAX), 7 * but since the individual *.c files include "config.h" before 8 * <limits.h>, overriding an excessive value of PATH_MAX from 9 * "config.h" is impossible anyway, so for now, the simplest 10 * fix is to provide a value only on systems not having any. 11 * So far, we encountered no system defining PATH_MAX to an 12 * impractically large value, even though POSIX explicitly 13 * allows that. 14 * 15 * The real fix would be to replace all static buffers of size 16 * PATH_MAX by dynamically allocated buffers. But that is 17 * somewhat intrusive because it touches several files and 18 * because it requires changing struct mlink in mandocdb.c. 19 * So i'm postponing that for now. 20 */ 21 22 #include <limits.h> 23 #include <stdio.h> 24 25 int 26 main(void) 27 { 28 printf("PATH_MAX is defined to be %ld\n", (long)PATH_MAX); 29 return 0; 30 } 31