X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/6f5a440ab65a2ec977db14ec69698068aed98935..e3e281ccf9d8777d0df98ddd644720573e0343d1:/src/OS/os.h-GNU

diff --git a/src/OS/os.h-GNU b/src/OS/os.h-GNU
index cc4da0e3b..4b222600e 100644
--- a/src/OS/os.h-GNU
+++ b/src/OS/os.h-GNU
@@ -1,4 +1,7 @@
 /* Exim: OS-specific C header file for GNU/Hurd */
+/* Copyright (c) The Exim Maintainers 2020 - 2021 */
+
+#include <features.h>
 
 #define CRYPT_H
 #define GLIBC_IP_OPTIONS
@@ -17,4 +20,15 @@ typedef struct flock flock_t;
 
 /* Hurd-specific bits below */
 
+/* default is non-const */
+#define ICONV_ARG2_TYPE const char **
+
+/* setgroups(0, NULL) succeeds, and drops the gid group
+as well as any supplementary groups*/
+#define OS_SETGROUPS_ZERO_DROPS_ALL
+
+#if _POSIX_C_SOURCE >= 200809L || _ATFILE_SOURCE
+# define EXIM_HAVE_OPENAT
+#endif
+
 /* End */