Index: pam-1.5.3/modules/pam_limits/pam_limits.c
===================================================================
--- pam-1.5.3.orig/modules/pam_limits/pam_limits.c
+++ pam-1.5.3/modules/pam_limits/pam_limits.c
@@ -28,7 +28,9 @@
 #include <syslog.h>
 #include <stdarg.h>
 #include <signal.h>
+#ifdef __linux__
 #include <sys/prctl.h>
+#endif
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/resource.h>
@@ -402,6 +404,7 @@ static rlim_t str2rlim_t(char *value) {
         item = line + pos + 1; \
 }
 
+#ifdef __linux__
 static void parse_kernel_limits(pam_handle_t *pamh, struct pam_limit_s *pl, int ctrl)
 {
     int i, maxlen = 0;
@@ -470,6 +473,7 @@ static void parse_kernel_limits(pam_hand
       pl->limits[RLIMIT_NOFILE].limit.rlim_cur = FD_SETSIZE;
     }
 }
+#endif
 
 static int init_limits(pam_handle_t *pamh, struct pam_limit_s *pl, int ctrl)
 {
@@ -1177,10 +1181,12 @@ static int setup_limits(pam_handle_t *pa
     }
 
     if (pl->nonewprivs) {
+#ifdef __linux__
 	if (prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0) < 0) {
 	    pam_syslog(pamh, LOG_ERR, "Could not set prctl(PR_SET_NO_NEW_PRIVS): %m");
 	    retval |= LIMIT_ERR;
 	}
+#endif
     }
 
     if (!retval && pl->chroot_dir[0]) {