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Comparing libeio/libeio.m4 (file contents):
Revision 1.3 by root, Sun May 11 01:03:33 2008 UTC vs.
Revision 1.9 by root, Thu Jan 7 17:18:08 2010 UTC

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