Eroare de compilare: user.c: In function ‘main’: user.c:48:40: error: ‘MAP_POPULATE’ undeclared (first use in this function) buf = mmap(NULL, CHUNK, PROT_READ, MAP_POPULATE | MAP_UNINITIALIZED, open("strmatch.in", O_RDONLY), 0); ^ user.c:48:40: note: each undeclared identifier is reported only once for each function it appears in user.c:48:55: error: ‘MAP_UNINITIALIZED’ undeclared (first use in this function) buf = mmap(NULL, CHUNK, PROT_READ, MAP_POPULATE | MAP_UNINITIALIZED, open("strmatch.in", O_RDONLY), 0); ^ user.c:45:5: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("strmatch.in", "r", stdin); ^ user.c:46:5: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("strmatch.out", "w", stdout); ^ user.c:106:5: warning: ignoring return value of ‘write’, declared with attribute warn_unused_result [-Wunused-result] write(1, obuf, oblen); ^