-/* $Cambridge: exim/src/OS/os.h-Linux,v 1.4 2006/10/30 22:06:33 tom Exp $ */
+/* $Cambridge: exim/src/OS/os.h-Linux,v 1.8 2009/06/10 07:34:04 tom Exp $ */
/* Exim: OS-specific C header file for Linux */
#define HAVE_MMAP
#define HAVE_BSD_GETLOADAVG
#define HAVE_SYS_STATVFS_H
-#define HAVE_LINUX_SENDFILE
#define NO_IP_VAR_H
#define SIG_IGN_WORKS
+/* When using the DKIM, setting HAVE_LINUX_SENDFILE can increase
+performance on outgoing mail a bit. Note: With older glibc versions
+this setting will conflict with the _FILE_OFFSET_BITS=64 setting
+defined as part of the Linux CFLAGS. */
+
+/* #define HAVE_LINUX_SENDFILE */
+
#define F_FREESP O_TRUNC
typedef struct flock flock_t;