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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 1.32 by root, Sun Aug 12 04:15:05 2018 UTC

1dnl openbsd in its neverending brokenness requires stdint.h for intptr_t,
2dnl but that header isn't very portable...
3AC_CHECK_HEADERS([stdint.h sys/syscall.h sys/prctl.h])
4
1AC_SEARCH_LIBS( 5AC_SEARCH_LIBS(
2 pthread_create, 6 pthread_create,
3 [pthread pthreads pthreadVC2], 7 [pthread pthreads pthreadVC2],
4 , 8 ,
5 [AC_MSG_ERROR(pthread functions not found)] 9 [AC_MSG_ERROR(pthread functions not found)]
6) 10)
7 11
12AC_CACHE_CHECK(for utimes, ac_cv_utimes, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
13#include <sys/types.h>
14#include <sys/time.h>
15#include <utime.h>
16struct timeval tv[2];
17int res;
18int main (void)
19{
20 res = utimes ("/", tv);
21 return 0;
22}
23]])],ac_cv_utimes=yes,ac_cv_utimes=no)])
24test $ac_cv_utimes = yes && AC_DEFINE(HAVE_UTIMES, 1, utimes(2) is available)
25
8AC_CACHE_CHECK(for futimes, ac_cv_futimes, [AC_LINK_IFELSE([[ 26AC_CACHE_CHECK(for futimes, ac_cv_futimes, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
9#include <sys/types.h> 27#include <sys/types.h>
10#include <sys/time.h> 28#include <sys/time.h>
11#include <utime.h> 29#include <utime.h>
12struct timeval tv[2]; 30struct timeval tv[2];
13int res; 31int res;
14int fd; 32int fd;
15int main(void) 33int main (void)
16{ 34{
17 res = futimes (fd, tv); 35 res = futimes (fd, tv);
18 return 0; 36 return 0;
19} 37}
20]],ac_cv_futimes=yes,ac_cv_futimes=no)]) 38]])],ac_cv_futimes=yes,ac_cv_futimes=no)])
21test $ac_cv_futimes = yes && AC_DEFINE(HAVE_FUTIMES, 1, futimes(2) is available) 39test $ac_cv_futimes = yes && AC_DEFINE(HAVE_FUTIMES, 1, futimes(2) is available)
22 40
23AC_CACHE_CHECK(for readahead, ac_cv_readahead, [AC_LINK_IFELSE([ 41AC_CACHE_CHECK(for readahead, ac_cv_readahead, [AC_LINK_IFELSE([AC_LANG_SOURCE([
24#define _GNU_SOURCE
25#include <fcntl.h> 42#include <fcntl.h>
26int main(void) 43int main (void)
27{ 44{
28 int fd = 0; 45 int fd = 0;
29 off64_t offset = 1;
30 size_t count = 2; 46 size_t count = 2;
31 ssize_t res; 47 ssize_t res;
32 res = readahead (fd, offset, count); 48 res = readahead (fd, 0, count);
33 return 0; 49 return 0;
34} 50}
35],ac_cv_readahead=yes,ac_cv_readahead=no)]) 51])],ac_cv_readahead=yes,ac_cv_readahead=no)])
36test $ac_cv_readahead = yes && AC_DEFINE(HAVE_READAHEAD, 1, readahead(2) is available (linux)) 52test $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 53
39AC_CACHE_CHECK(for fdatasync, ac_cv_fdatasync, [AC_LINK_IFELSE([ 54AC_CACHE_CHECK(for fdatasync, ac_cv_fdatasync, [AC_LINK_IFELSE([AC_LANG_SOURCE([
40#include <unistd.h> 55#include <unistd.h>
41int main(void) 56int main (void)
42{ 57{
43 int fd = 0; 58 int fd = 0;
44 fdatasync (fd); 59 fdatasync (fd);
45 return 0; 60 return 0;
46} 61}
47],ac_cv_fdatasync=yes,ac_cv_fdatasync=no)]) 62])],ac_cv_fdatasync=yes,ac_cv_fdatasync=no)])
48test $ac_cv_fdatasync = yes && AC_DEFINE(HAVE_FDATASYNC, 1, fdatasync(2) is available) 63test $ac_cv_fdatasync = yes && AC_DEFINE(HAVE_FDATASYNC, 1, fdatasync(2) is available)
49 64
50AC_CACHE_CHECK(for pread and pwrite, ac_cv_preadwrite, [AC_LINK_IFELSE([
51#include <unistd.h>
52int main(void)
53{
54 int fd = 0;
55 size_t count = 1;
56 char buf;
57 off_t offset = 1;
58 ssize_t res;
59 res = pread (fd, &buf, count, offset);
60 res = pwrite (fd, &buf, count, offset);
61 return 0;
62}
63],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)
65
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([ 65AC_CACHE_CHECK(for sendfile, ac_cv_sendfile, [AC_LINK_IFELSE([AC_LANG_SOURCE([
79# include <sys/types.h> 66# include <sys/types.h>
80#if __linux 67#if __linux
81# include <sys/sendfile.h> 68# include <sys/sendfile.h>
82#elif __freebsd 69#elif __FreeBSD__ || defined __APPLE__
83# include <sys/socket.h> 70# include <sys/socket.h>
84# include <sys/uio.h> 71# include <sys/uio.h>
85#elif __hpux 72#elif __hpux
86# include <sys/socket.h> 73# include <sys/socket.h>
87#else 74#else
88# error unsupported architecture 75# error unsupported architecture
89#endif 76#endif
90int main(void) 77int main (void)
91{ 78{
92 int fd = 0; 79 int fd = 0;
93 off_t offset = 1; 80 off_t offset = 1;
94 size_t count = 2; 81 size_t count = 2;
95 ssize_t res; 82 ssize_t res;
96#if __linux 83#if __linux
97 res = sendfile (fd, fd, offset, count); 84 res = sendfile (fd, fd, &offset, count);
98#elif __freebsd 85#elif __FreeBSD__
99 res = sendfile (fd, fd, offset, count, 0, &offset, 0); 86 res = sendfile (fd, fd, offset, count, 0, &offset, 0);
100#elif __hpux 87#elif __hpux
101 res = sendfile (fd, fd, offset, count, 0, 0); 88 res = sendfile (fd, fd, offset, count, 0, 0);
102#endif 89#endif
103 return 0; 90 return 0;
104} 91}
105],ac_cv_sendfile=yes,ac_cv_sendfile=no)]) 92])],ac_cv_sendfile=yes,ac_cv_sendfile=no)])
106test $ac_cv_sendfile = yes && AC_DEFINE(HAVE_SENDFILE, 1, sendfile(2) is available and supported) 93test $ac_cv_sendfile = yes && AC_DEFINE(HAVE_SENDFILE, 1, sendfile(2) is available and supported)
107 94
95AC_CACHE_CHECK(for sync_file_range, ac_cv_sync_file_range, [AC_LINK_IFELSE([AC_LANG_SOURCE([
96#include <fcntl.h>
97int main (void)
98{
99 int fd = 0;
100 off64_t offset = 1;
101 off64_t nbytes = 1;
102 unsigned int flags = SYNC_FILE_RANGE_WAIT_BEFORE|SYNC_FILE_RANGE_WRITE|SYNC_FILE_RANGE_WAIT_AFTER;
103 ssize_t res;
104 res = sync_file_range (fd, offset, nbytes, flags);
105 return 0;
106}
107])],ac_cv_sync_file_range=yes,ac_cv_sync_file_range=no)])
108test $ac_cv_sync_file_range = yes && AC_DEFINE(HAVE_SYNC_FILE_RANGE, 1, sync_file_range(2) is available)
109
110AC_CACHE_CHECK(for fallocate, ac_cv_linux_fallocate, [AC_LINK_IFELSE([AC_LANG_SOURCE([
111#include <fcntl.h>
112int main (void)
113{
114 int fd = 0;
115 int mode = 0;
116 off_t offset = 1;
117 off_t len = 1;
118 int res;
119 res = fallocate (fd, mode, offset, len);
120 return 0;
121}
122])],ac_cv_linux_fallocate=yes,ac_cv_linux_fallocate=no)])
123test $ac_cv_linux_fallocate = yes && AC_DEFINE(HAVE_LINUX_FALLOCATE, 1, fallocate(2) is available)
124
125AC_CACHE_CHECK(for sys_syncfs, ac_cv_sys_syncfs, [AC_LINK_IFELSE([AC_LANG_SOURCE([
126#include <unistd.h>
127#include <sys/syscall.h>
128int main (void)
129{
130 int res = syscall (__NR_syncfs, (int)0);
131}
132])],ac_cv_sys_syncfs=yes,ac_cv_sys_syncfs=no)])
133test $ac_cv_sys_syncfs = yes && AC_DEFINE(HAVE_SYS_SYNCFS, 1, syscall(__NR_syncfs) is available)
134
135AC_CACHE_CHECK(for prctl_set_name, ac_cv_prctl_set_name, [AC_LINK_IFELSE([AC_LANG_SOURCE([
136#include <sys/prctl.h>
137int main (void)
138{
139 char *name = "test123";
140 int res = prctl (PR_SET_NAME, (unsigned long)name, 0, 0, 0);
141}
142])],ac_cv_prctl_set_name=yes,ac_cv_prctl_set_name=no)])
143test $ac_cv_prctl_set_name = yes && AC_DEFINE(HAVE_PRCTL_SET_NAME, 1, prctl(PR_SET_NAME) is available)
144
145AC_CACHE_CHECK(for posix_close, ac_cv_posix_close, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
146#include <unistd.h>
147int res;
148int main (void)
149{
150 res = posix_close (0, 0); /* we do not need any flags */
151 return 0;
152}
153]])],ac_cv_posix_close=yes,ac_cv_posix_close=no)])
154test $ac_cv_posix_close = yes && AC_DEFINE(HAVE_POSIX_CLOSE, 1, posix_close(2) is available)
155
156AC_CACHE_CHECK(for renameat2, ac_cv_renameat2, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
157#include <unistd.h>
158#include <sys/syscall.h>
159#include <linux/fs.h>
160int res;
161int main (void)
162{
163 res = syscall (SYS_renameat2, 0, 0, 0, 0, RENAME_EXCHANGE | RENAME_NOREPLACE);
164 return 0;
165}
166]])],ac_cv_renameat2=yes,ac_cv_renameat2=no)])
167test $ac_cv_renameat2 = yes && AC_DEFINE(HAVE_RENAMEAT2, 1, renameat2(2) is available)
168

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