GNU/Hurd: retry EINTR returns from pipe I/O

[exim.git] / src / OS / os.h-GNU

diff --git a/src/OS/os.h-GNU b/src/OS/os.h-GNU
index 48a53599a9ec15ed8cd4f2256e81fed46574a818..772d278addf5315ac5341103952a361f0c01b0f9 100644 (file)
--- a/src/OS/os.h-GNU
+++ b/src/OS/os.h-GNU
@@ -1,14 +1,13 @@
-/* $Cambridge: exim/src/OS/os.h-GNU,v 1.2 2005/01/04 10:25:58 ph10 Exp $ */
-
 /* Exim: OS-specific C header file for GNU/Hurd */
 
 #define CRYPT_H
 #define GLIBC_IP_OPTIONS
-#define HAVE_MMAP
 #define HAVE_BSD_GETLOADAVG
+#define HAVE_MMAP
 #define HAVE_SYS_VFS_H
 #define NO_IP_VAR_H
 #define SIG_IGN_WORKS
+#define SIOCGIFCONF_GIVES_ADDR
 
 #define F_FREESP     O_TRUNC
 typedef struct flock flock_t;
@@ -18,4 +17,15 @@ 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
+
+/* reads and writes on pipes frequently return EINTR.  We provide
+a routine to retry that */
+#define OS_PIPE_RW_EINTR
+
 /* End */