src/OS/os.h-Linux

   1 /* Exim: OS-specific C header file for Linux */
   2
   3 #define CRYPT_H
   4 #define GLIBC_IP_OPTIONS
   5 #define HAVE_MMAP
   6 #define HAVE_BSD_GETLOADAVG
   7 #define HAVE_SYS_STATVFS_H
   8 #define NO_IP_VAR_H
   9 #define SIG_IGN_WORKS
  10
  11 /* When using the DKIM, setting HAVE_LINUX_SENDFILE can increase
  12 performance on outgoing mail a bit. Note: With older glibc versions
  13 this setting will conflict with the _FILE_OFFSET_BITS=64 setting
  14 defined as part of the Linux CFLAGS. */
  15
  16 /* #define HAVE_LINUX_SENDFILE */
  17
  18 #define F_FREESP     O_TRUNC
  19 typedef struct flock flock_t;
  20
  21 #define os_strsignal strsignal
  22 #define OS_STRSIGNAL
  23
  24 #if defined(__linux__) || defined(__FreeBSD_kernel__) || defined(__NetBSD_kernel__)
  25 #define SIOCGIFCONF_GIVES_ADDR
  26 #define HAVE_SYS_MOUNT_H
  27 #endif
  28
  29 #if defined(__linux__)
  30
  31 /* Some versions of Linux need explicit sync-ing of directories as well as
  32 files. This setting requests that. If the directory is on NFS, it may not
  33 be possible to sync it - in that case, Exim now should ignore the error. But
  34 if you have problems in that area, try undefining this. But be aware that you
  35 may be in a situation where files are not being properly "committed to stable
  36 storage" as quickly as Exim thinks they are. */
  37
  38 #define NEED_SYNC_DIRECTORY
  39
  40 /* Other OS have "const" in here */
  41 #define ICONV_ARG2_TYPE char **
  42
  43 #define os_find_running_interfaces os_find_running_interfaces_linux
  44
  45 /* Need a prototype for the Linux-specific function. The structure hasn't
  46 been defined yet, so we need to pre-declare it. */
  47
  48 struct ip_address_item;
  49 extern struct ip_address_item *os_find_running_interfaces_linux(void);
  50
  51 #endif /* __linux__ */
  52
  53 /* End */