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Comparing libeio/libeio.m4 (file contents):
Revision 1.2 by root, Sun May 11 01:00:03 2008 UTC vs.
Revision 1.9 by root, Thu Jan 7 17:18:08 2010 UTC

… …
19} 19}
20]],ac_cv_futimes=yes,ac_cv_futimes=no)]) 20]],ac_cv_futimes=yes,ac_cv_futimes=no)])
21test $ac_cv_futimes = yes && AC_DEFINE(HAVE_FUTIMES, 1, futimes(2) is available) 21test $ac_cv_futimes = yes && AC_DEFINE(HAVE_FUTIMES, 1, futimes(2) is available)
22 22
23AC_CACHE_CHECK(for readahead, ac_cv_readahead, [AC_LINK_IFELSE([ 23AC_CACHE_CHECK(for readahead, ac_cv_readahead, [AC_LINK_IFELSE([
24#define _GNU_SOURCE
25#include <fcntl.h> 24#include <fcntl.h>
26int main(void) 25int main(void)
27{ 26{
28 int fd = 0; 27 int fd = 0;
29 off64_t offset = 1;
30 size_t count = 2; 28 size_t count = 2;
31 ssize_t res; 29 ssize_t res;
32 res = readahead (fd, offset, count); 30 res = readahead (fd, 0, count);
33 return 0; 31 return 0;
34} 32}
35],ac_cv_readahead=yes,ac_cv_readahead=no)]) 33],ac_cv_readahead=yes,ac_cv_readahead=no)])
36test $ac_cv_readahead = yes && AC_DEFINE(HAVE_READAHEAD, 1, readahead(2) is available (linux)) 34test $ac_cv_readahead = yes && AC_DEFINE(HAVE_READAHEAD, 1, readahead(2) is available (linux))
37test $ac_cv_readahead = yes && AC_DEFINE(_GNU_SOURCE, 1, _GNU_SOURCE required for readahead (linux))
38 35
39AC_CACHE_CHECK(for fdatasync, ac_cv_fdatasync, [AC_LINK_IFELSE([ 36AC_CACHE_CHECK(for fdatasync, ac_cv_fdatasync, [AC_LINK_IFELSE([
40#include <unistd.h> 37#include <unistd.h>
41int main(void) 38int main(void)
42{ 39{
… …
61 return 0; 58 return 0;
62} 59}
63],ac_cv_preadwrite=yes,ac_cv_preadwrite=no)]) 60],ac_cv_preadwrite=yes,ac_cv_preadwrite=no)])
64test $ac_cv_preadwrite = yes && AC_DEFINE(HAVE_PREADWRITE, 1, pread(2) and pwrite(2) are available) 61test $ac_cv_preadwrite = yes && AC_DEFINE(HAVE_PREADWRITE, 1, pread(2) and pwrite(2) are available)
65 62
66AC_CACHE_CHECK(for readdir_r, ac_cv_readdir_r, [AC_LINK_IFELSE([
67#include <dirent.h>
68int main(void)
69{
70 DIR *dir = 0;
71 struct dirent ent, *eres;
72 int res = readdir_r (dir, &ent, &eres);
73 return 0;
74}
75],ac_cv_readdir_r=yes,ac_cv_readdir_r=no)])
76test $ac_cv_readdir_r = yes && AC_DEFINE(HAVE_READDIR_R, 1, readdir_r is available)
77
78AC_CACHE_CHECK(for sendfile, ac_cv_sendfile, [AC_LINK_IFELSE([ 63AC_CACHE_CHECK(for sendfile, ac_cv_sendfile, [AC_LINK_IFELSE([
79# include <sys/types.h> 64# include <sys/types.h>
80#if __linux 65#if __linux
81# include <sys/sendfile.h> 66# include <sys/sendfile.h>
82#elif __freebsd 67#elif __FreeBSD__ || defined __APPLE__
83# include <sys/socket.h> 68# include <sys/socket.h>
84# include <sys/uio.h> 69# include <sys/uio.h>
85#elif __hpux 70#elif __hpux
86# include <sys/socket.h> 71# include <sys/socket.h>
87#else 72#else
… …
93 off_t offset = 1; 78 off_t offset = 1;
94 size_t count = 2; 79 size_t count = 2;
95 ssize_t res; 80 ssize_t res;
96#if __linux 81#if __linux
97 res = sendfile (fd, fd, offset, count); 82 res = sendfile (fd, fd, offset, count);
98#elif __freebsd 83#elif __FreeBSD__
99 res = sendfile (fd, fd, offset, count, 0, &offset, 0); 84 res = sendfile (fd, fd, offset, count, 0, &offset, 0);
100#elif __hpux 85#elif __hpux
101 res = sendfile (fd, fd, offset, count, 0, 0); 86 res = sendfile (fd, fd, offset, count, 0, 0);
102#endif 87#endif
103 return 0; 88 return 0;
104} 89}
105],ac_cv_sendfile=yes,ac_cv_sendfile=no)]) 90],ac_cv_sendfile=yes,ac_cv_sendfile=no)])
106test $ac_cv_sendfile = yes && AC_DEFINE(HAVE_SENDFILE, 1, sendfile(2) is available and supported) 91test $ac_cv_sendfile = yes && AC_DEFINE(HAVE_SENDFILE, 1, sendfile(2) is available and supported)
107 92
93AC_CACHE_CHECK(for sync_file_range, ac_cv_sync_file_range, [AC_LINK_IFELSE([
94#include <fcntl.h>
95int main(void)
96{
97 int fd = 0;
98 off64_t offset = 1;
99 off64_t nbytes = 1;
100 unsigned int flags = SYNC_FILE_RANGE_WAIT_BEFORE|SYNC_FILE_RANGE_WRITE|SYNC_FILE_RANGE_WAIT_AFTER;
101 ssize_t res;
102 res = sync_file_range (fd, offset, nbytes, flags);
103 return 0;
104}
105],ac_cv_sync_file_range=yes,ac_cv_sync_file_range=no)])
106test $ac_cv_sync_file_range = yes && AC_DEFINE(HAVE_SYNC_FILE_RANGE, 1, sync_file_range(2) is available)
107

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