Define _ISOC99_SOURCE in exim.h
[exim.git] / src / OS / os.h-Linux
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1/* Exim: OS-specific C header file for Linux */
2
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3/* Some old systems we've received bug-reports for have a <limits.h> which
4does not pull in <features.h>. Best to just pull it in now and have done
5with the issue. */
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6
7#include <features.h>
8
9
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10#define CRYPT_H
11#define GLIBC_IP_OPTIONS
12#define HAVE_MMAP
6e2b4ccc 13#define HAVE_BSD_GETLOADAVG
26034054 14#define HAVE_SYS_STATVFS_H
61ec970d 15#define NO_IP_VAR_H
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16#define SIG_IGN_WORKS
17
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18/* When using the DKIM, setting HAVE_LINUX_SENDFILE can increase
19performance on outgoing mail a bit. Note: With older glibc versions
20this setting will conflict with the _FILE_OFFSET_BITS=64 setting
21defined as part of the Linux CFLAGS. */
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22
23/* #define HAVE_LINUX_SENDFILE */
24
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25#define F_FREESP O_TRUNC
26typedef struct flock flock_t;
27
28#define os_strsignal strsignal
29#define OS_STRSIGNAL
30
31#if defined(__linux__) || defined(__FreeBSD_kernel__) || defined(__NetBSD_kernel__)
32#define SIOCGIFCONF_GIVES_ADDR
33#define HAVE_SYS_MOUNT_H
34#endif
35
36#if defined(__linux__)
37
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38/* Some versions of Linux need explicit sync-ing of directories as well as
39files. This setting requests that. If the directory is on NFS, it may not
40be possible to sync it - in that case, Exim now should ignore the error. But
41if you have problems in that area, try undefining this. But be aware that you
42may be in a situation where files are not being properly "committed to stable
43storage" as quickly as Exim thinks they are. */
44
45#define NEED_SYNC_DIRECTORY
46
47/* Other OS have "const" in here */
48#define ICONV_ARG2_TYPE char **
49
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50#define os_find_running_interfaces os_find_running_interfaces_linux
51
52/* Need a prototype for the Linux-specific function. The structure hasn't
53been defined yet, so we need to pre-declare it. */
54
55struct ip_address_item;
56extern struct ip_address_item *os_find_running_interfaces_linux(void);
57
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58#endif /* __linux__ */
59
61ec970d 60/* End */