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Comparing libeio/libeio.m4 (file contents):
Revision 1.15 by root, Thu Jul 7 22:37:11 2011 UTC vs.
Revision 1.33 by root, Sun Mar 10 12:11:47 2019 UTC

1dnl openbsd in it's neverending brokenness requires stdint.h for intptr_t, 1dnl openbsd in its neverending brokenness requires stdint.h for intptr_t,
2dnl but that header isn't very portable... 2dnl but that header isn't very portable...
3AC_CHECK_HEADERS([stdint.h]) 3AC_CHECK_HEADERS([stdint.h sys/syscall.h sys/prctl.h])
4 4
5AC_SEARCH_LIBS( 5AC_SEARCH_LIBS(
6 pthread_create, 6 pthread_create,
7 [pthread pthreads pthreadVC2], 7 [pthread pthreads pthreadVC2],
8 , 8 ,
9 [AC_MSG_ERROR(pthread functions not found)] 9 [AC_MSG_ERROR(pthread functions not found)]
10) 10)
11 11
12AC_CACHE_CHECK(for utimes, ac_cv_utimes, [AC_LINK_IFELSE([[ 12AC_CACHE_CHECK(for utimes, ac_cv_utimes, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
13#include <sys/types.h> 13#include <sys/types.h>
14#include <sys/time.h> 14#include <sys/time.h>
15#include <utime.h> 15#include <utime.h>
16struct timeval tv[2]; 16struct timeval tv[2];
17int res; 17int res;
18int main (void) 18int main (void)
19{ 19{
20 res = utimes ("/", tv); 20 res = utimes ("/", tv);
21 return 0; 21 return 0;
22} 22}
23]],ac_cv_utimes=yes,ac_cv_utimes=no)]) 23]])],ac_cv_utimes=yes,ac_cv_utimes=no)])
24test $ac_cv_utimes = yes && AC_DEFINE(HAVE_UTIMES, 1, utimes(2) is available) 24test $ac_cv_utimes = yes && AC_DEFINE(HAVE_UTIMES, 1, utimes(2) is available)
25 25
26AC_CACHE_CHECK(for futimes, ac_cv_futimes, [AC_LINK_IFELSE([[ 26AC_CACHE_CHECK(for futimes, ac_cv_futimes, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
27#include <sys/types.h> 27#include <sys/types.h>
28#include <sys/time.h> 28#include <sys/time.h>
29#include <utime.h> 29#include <utime.h>
30struct timeval tv[2]; 30struct timeval tv[2];
31int res; 31int res;
… …
33int main (void) 33int main (void)
34{ 34{
35 res = futimes (fd, tv); 35 res = futimes (fd, tv);
36 return 0; 36 return 0;
37} 37}
38]],ac_cv_futimes=yes,ac_cv_futimes=no)]) 38]])],ac_cv_futimes=yes,ac_cv_futimes=no)])
39test $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)
40 40
41AC_CACHE_CHECK(for readahead, ac_cv_readahead, [AC_LINK_IFELSE([ 41AC_CACHE_CHECK(for readahead, ac_cv_readahead, [AC_LINK_IFELSE([AC_LANG_SOURCE([
42#include <sys/types.h>
42#include <fcntl.h> 43#include <fcntl.h>
43int main (void) 44int main (void)
44{ 45{
45 int fd = 0; 46 int fd = 0;
46 size_t count = 2; 47 size_t count = 2;
47 ssize_t res; 48 ssize_t res;
48 res = readahead (fd, 0, count); 49 res = readahead (fd, 0, count);
49 return 0; 50 return 0;
50} 51}
51],ac_cv_readahead=yes,ac_cv_readahead=no)]) 52])],ac_cv_readahead=yes,ac_cv_readahead=no)])
52test $ac_cv_readahead = yes && AC_DEFINE(HAVE_READAHEAD, 1, readahead(2) is available (linux)) 53test $ac_cv_readahead = yes && AC_DEFINE(HAVE_READAHEAD, 1, readahead(2) is available (linux))
53 54
54AC_CACHE_CHECK(for fdatasync, ac_cv_fdatasync, [AC_LINK_IFELSE([ 55AC_CACHE_CHECK(for fdatasync, ac_cv_fdatasync, [AC_LINK_IFELSE([AC_LANG_SOURCE([
55#include <unistd.h> 56#include <unistd.h>
56int main (void) 57int main (void)
57{ 58{
58 int fd = 0; 59 int fd = 0;
59 fdatasync (fd); 60 fdatasync (fd);
60 return 0; 61 return 0;
61} 62}
62],ac_cv_fdatasync=yes,ac_cv_fdatasync=no)]) 63])],ac_cv_fdatasync=yes,ac_cv_fdatasync=no)])
63test $ac_cv_fdatasync = yes && AC_DEFINE(HAVE_FDATASYNC, 1, fdatasync(2) is available) 64test $ac_cv_fdatasync = yes && AC_DEFINE(HAVE_FDATASYNC, 1, fdatasync(2) is available)
64 65
65AC_CACHE_CHECK(for pread and pwrite, ac_cv_preadwrite, [AC_LINK_IFELSE([
66#include <unistd.h>
67int main (void)
68{
69 int fd = 0;
70 size_t count = 1;
71 char buf;
72 off_t offset = 1;
73 ssize_t res;
74 res = pread (fd, &buf, count, offset);
75 res = pwrite (fd, &buf, count, offset);
76 return 0;
77}
78],ac_cv_preadwrite=yes,ac_cv_preadwrite=no)])
79test $ac_cv_preadwrite = yes && AC_DEFINE(HAVE_PREADWRITE, 1, pread(2) and pwrite(2) are available)
80
81AC_CACHE_CHECK(for sendfile, ac_cv_sendfile, [AC_LINK_IFELSE([ 66AC_CACHE_CHECK(for sendfile, ac_cv_sendfile, [AC_LINK_IFELSE([AC_LANG_SOURCE([
82# include <sys/types.h> 67# include <sys/types.h>
83#if __linux 68#if __linux
84# include <sys/sendfile.h> 69# include <sys/sendfile.h>
85#elif __FreeBSD__ || defined __APPLE__ 70#elif __FreeBSD__ || defined __APPLE__
86# include <sys/socket.h> 71# include <sys/socket.h>
… …
95 int fd = 0; 80 int fd = 0;
96 off_t offset = 1; 81 off_t offset = 1;
97 size_t count = 2; 82 size_t count = 2;
98 ssize_t res; 83 ssize_t res;
99#if __linux 84#if __linux
100 res = sendfile (fd, fd, offset, count); 85 res = sendfile (fd, fd, &offset, count);
101#elif __FreeBSD__ 86#elif __FreeBSD__
102 res = sendfile (fd, fd, offset, count, 0, &offset, 0); 87 res = sendfile (fd, fd, offset, count, 0, &offset, 0);
103#elif __hpux 88#elif __hpux
104 res = sendfile (fd, fd, offset, count, 0, 0); 89 res = sendfile (fd, fd, offset, count, 0, 0);
105#endif 90#endif
106 return 0; 91 return 0;
107} 92}
108],ac_cv_sendfile=yes,ac_cv_sendfile=no)]) 93])],ac_cv_sendfile=yes,ac_cv_sendfile=no)])
109test $ac_cv_sendfile = yes && AC_DEFINE(HAVE_SENDFILE, 1, sendfile(2) is available and supported) 94test $ac_cv_sendfile = yes && AC_DEFINE(HAVE_SENDFILE, 1, sendfile(2) is available and supported)
110 95
111AC_CACHE_CHECK(for sync_file_range, ac_cv_sync_file_range, [AC_LINK_IFELSE([ 96AC_CACHE_CHECK(for sync_file_range, ac_cv_sync_file_range, [AC_LINK_IFELSE([AC_LANG_SOURCE([
97#include <sys/types.h>
112#include <fcntl.h> 98#include <fcntl.h>
113int main (void) 99int main (void)
114{ 100{
115 int fd = 0; 101 int fd = 0;
116 off64_t offset = 1; 102 off64_t offset = 1;
… …
118 unsigned int flags = SYNC_FILE_RANGE_WAIT_BEFORE|SYNC_FILE_RANGE_WRITE|SYNC_FILE_RANGE_WAIT_AFTER; 104 unsigned int flags = SYNC_FILE_RANGE_WAIT_BEFORE|SYNC_FILE_RANGE_WRITE|SYNC_FILE_RANGE_WAIT_AFTER;
119 ssize_t res; 105 ssize_t res;
120 res = sync_file_range (fd, offset, nbytes, flags); 106 res = sync_file_range (fd, offset, nbytes, flags);
121 return 0; 107 return 0;
122} 108}
123],ac_cv_sync_file_range=yes,ac_cv_sync_file_range=no)]) 109])],ac_cv_sync_file_range=yes,ac_cv_sync_file_range=no)])
124test $ac_cv_sync_file_range = yes && AC_DEFINE(HAVE_SYNC_FILE_RANGE, 1, sync_file_range(2) is available) 110test $ac_cv_sync_file_range = yes && AC_DEFINE(HAVE_SYNC_FILE_RANGE, 1, sync_file_range(2) is available)
125 111
126AC_CACHE_CHECK(for fallocate, ac_cv_fallocate, [AC_LINK_IFELSE([ 112AC_CACHE_CHECK(for fallocate, ac_cv_linux_fallocate, [AC_LINK_IFELSE([AC_LANG_SOURCE([
127#include <fcntl.h> 113#include <fcntl.h>
128int main (void) 114int main (void)
129{ 115{
130 int fd = 0; 116 int fd = 0;
131 int mode = 0; 117 int mode = 0;
… …
133 off_t len = 1; 119 off_t len = 1;
134 int res; 120 int res;
135 res = fallocate (fd, mode, offset, len); 121 res = fallocate (fd, mode, offset, len);
136 return 0; 122 return 0;
137} 123}
138],ac_cv_fallocate=yes,ac_cv_fallocate=no)]) 124])],ac_cv_linux_fallocate=yes,ac_cv_linux_fallocate=no)])
139test $ac_cv_fallocate = yes && AC_DEFINE(HAVE_FALLOCATE, 1, fallocate(2) is available) 125test $ac_cv_linux_fallocate = yes && AC_DEFINE(HAVE_LINUX_FALLOCATE, 1, fallocate(2) is available)
140 126
141dnl ############################################################################# 127AC_CACHE_CHECK(for sys_syncfs, ac_cv_sys_syncfs, [AC_LINK_IFELSE([AC_LANG_SOURCE([
142dnl # these checks exist for the benefit of IO::AIO 128#include <unistd.h>
143
144dnl at least uclibc defines _POSIX_ADVISORY_INFO without *any* of the required
145dnl functionality actually being present. ugh.
146AC_CACHE_CHECK(for posix_madvise, ac_cv_posix_madvise, [AC_LINK_IFELSE([
147#include <sys/mman.h> 129#include <sys/syscall.h>
148int main (void) 130int main (void)
149{ 131{
150 int res = posix_madvise ((void *)0, (size_t)0, POSIX_MADV_NORMAL); 132 int res = syscall (__NR_syncfs, (int)0);
151 int a = POSIX_MADV_SEQUENTIAL; 133}
152 int b = POSIX_MADV_RANDOM; 134])],ac_cv_sys_syncfs=yes,ac_cv_sys_syncfs=no)])
153 int c = POSIX_MADV_WILLNEED; 135test $ac_cv_sys_syncfs = yes && AC_DEFINE(HAVE_SYS_SYNCFS, 1, syscall(__NR_syncfs) is available)
154 int d = POSIX_MADV_DONTNEED; 136
137AC_CACHE_CHECK(for prctl_set_name, ac_cv_prctl_set_name, [AC_LINK_IFELSE([AC_LANG_SOURCE([
138#include <sys/prctl.h>
139int main (void)
140{
141 char *name = "test123";
142 int res = prctl (PR_SET_NAME, (unsigned long)name, 0, 0, 0);
143}
144])],ac_cv_prctl_set_name=yes,ac_cv_prctl_set_name=no)])
145test $ac_cv_prctl_set_name = yes && AC_DEFINE(HAVE_PRCTL_SET_NAME, 1, prctl(PR_SET_NAME) is available)
146
147AC_CACHE_CHECK(for posix_close, ac_cv_posix_close, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
148#include <unistd.h>
149int res;
150int main (void)
151{
152 res = posix_close (0, 0); /* we do not need any flags */
155 return 0; 153 return 0;
156} 154}
157],ac_cv_posix_madvise=yes,ac_cv_posix_madvise=no)]) 155]])],ac_cv_posix_close=yes,ac_cv_posix_close=no)])
158test $ac_cv_posix_madvise = yes && AC_DEFINE(HAVE_POSIX_MADVISE, 1, posix_madvise(2) is available) 156test $ac_cv_posix_close = yes && AC_DEFINE(HAVE_POSIX_CLOSE, 1, posix_close(2) is available)
159 157
160AC_CACHE_CHECK(for posix_fadvise, ac_cv_posix_fadvise, [AC_LINK_IFELSE([ 158AC_CACHE_CHECK(for renameat2, ac_cv_renameat2, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
161#define _XOPEN_SOURCE 600
162#include <fcntl.h> 159#include <unistd.h>
160#include <sys/syscall.h>
161#include <linux/fs.h>
162int res;
163int main (void) 163int main (void)
164{ 164{
165 int res = posix_fadvise ((int)0, (off_t)0, (off_t)0, POSIX_FADV_NORMAL); 165 res = syscall (SYS_renameat2, 0, 0, 0, 0, RENAME_EXCHANGE | RENAME_NOREPLACE);
166 int a = POSIX_FADV_SEQUENTIAL;
167 int b = POSIX_FADV_NOREUSE;
168 int c = POSIX_FADV_RANDOM;
169 int d = POSIX_FADV_WILLNEED;
170 int e = POSIX_FADV_DONTNEED;
171 return 0; 166 return 0;
172} 167}
173],ac_cv_posix_fadvise=yes,ac_cv_posix_fadvise=no)]) 168]])],ac_cv_renameat2=yes,ac_cv_renameat2=no)])
174test $ac_cv_posix_fadvise = yes && AC_DEFINE(HAVE_POSIX_FADVISE, 1, posix_fadvise(2) is available) 169test $ac_cv_renameat2 = yes && AC_DEFINE(HAVE_RENAMEAT2, 1, renameat2(2) is available)
175 170

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