Don’t use posix_fadvise() on MacOS or OpenBSD

These systems (despite being POSIX) have not yet implemented this
function/syscall.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/work.c b/src/work.c
index 510fa07..7656d4d 100644
--- a/src/work.c
+++ b/src/work.c
@@ -82,7 +82,9 @@ process_file(const char *locl_filename, unsigned char **locl_buf)
 		goto err;
 	}
 
+#if !defined(__APPLE__) && !defined(__OpenBSD__)
 	(void)posix_fadvise(fd, 0, 0, POSIX_FADV_SEQUENTIAL | POSIX_FADV_WILLNEED);
+#endif
 
 	struct stat st;
 	if (fstat(fd, &st) == -1) {