Fix implicit function declaration warning when building with cmake.

diff --git a/libarchive/archive_read_disk_posix.c b/libarchive/archive_read_disk_posix.c
index 8a42e28e34679667b14eec126dff47167e800fef..daa49539461b07b75364b261a2ce3701ff3b22fd 100644 (file)
--- a/libarchive/archive_read_disk_posix.c
+++ b/libarchive/archive_read_disk_posix.c
@@ -89,6 +89,9 @@ __FBSDID("$FreeBSD$");
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>
 #endif
+#ifdef HAVE_SYS_IOCTL_H
+#include <sys/ioctl.h>
+#endif
 
 #include "archive.h"
 #include "archive_string.h"