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Comparing libeio/libeio.m4 (file contents):
Revision 1.5 by root, Mon May 12 00:31:43 2008 UTC vs.
Revision 1.16 by root, Sun Jul 24 03:32:54 2011 UTC

1dnl openbsd in it's neverending brokenness requires stdint.h for intptr_t,
2dnl but that header isn't very portable...
3AC_CHECK_HEADERS([stdint.h sys/syscall.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)
11
12AC_CACHE_CHECK(for utimes, ac_cv_utimes, [AC_LINK_IFELSE([[
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)
7 25
8AC_CACHE_CHECK(for futimes, ac_cv_futimes, [AC_LINK_IFELSE([[ 26AC_CACHE_CHECK(for futimes, ac_cv_futimes, [AC_LINK_IFELSE([[
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([
24#include <fcntl.h> 42#include <fcntl.h>
25int main(void) 43int main (void)
26{ 44{
27 int fd = 0; 45 int fd = 0;
28 size_t count = 2; 46 size_t count = 2;
29 ssize_t res; 47 ssize_t res;
30 res = readahead (fd, 0, count); 48 res = readahead (fd, 0, count);
… …
33],ac_cv_readahead=yes,ac_cv_readahead=no)]) 51],ac_cv_readahead=yes,ac_cv_readahead=no)])
34test $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))
35 53
36AC_CACHE_CHECK(for fdatasync, ac_cv_fdatasync, [AC_LINK_IFELSE([ 54AC_CACHE_CHECK(for fdatasync, ac_cv_fdatasync, [AC_LINK_IFELSE([
37#include <unistd.h> 55#include <unistd.h>
38int main(void) 56int main (void)
39{ 57{
40 int fd = 0; 58 int fd = 0;
41 fdatasync (fd); 59 fdatasync (fd);
42 return 0; 60 return 0;
43} 61}
44],ac_cv_fdatasync=yes,ac_cv_fdatasync=no)]) 62],ac_cv_fdatasync=yes,ac_cv_fdatasync=no)])
45test $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)
46 64
47AC_CACHE_CHECK(for pread and pwrite, ac_cv_preadwrite, [AC_LINK_IFELSE([ 65AC_CACHE_CHECK(for pread and pwrite, ac_cv_preadwrite, [AC_LINK_IFELSE([
48#include <unistd.h> 66#include <unistd.h>
49int main(void) 67int main (void)
50{ 68{
51 int fd = 0; 69 int fd = 0;
52 size_t count = 1; 70 size_t count = 1;
53 char buf; 71 char buf;
54 off_t offset = 1; 72 off_t offset = 1;
… …
58 return 0; 76 return 0;
59} 77}
60],ac_cv_preadwrite=yes,ac_cv_preadwrite=no)]) 78],ac_cv_preadwrite=yes,ac_cv_preadwrite=no)])
61test $ac_cv_preadwrite = yes && AC_DEFINE(HAVE_PREADWRITE, 1, pread(2) and pwrite(2) are available) 79test $ac_cv_preadwrite = yes && AC_DEFINE(HAVE_PREADWRITE, 1, pread(2) and pwrite(2) are available)
62 80
63AC_CACHE_CHECK(for readdir_r, ac_cv_readdir_r, [AC_LINK_IFELSE([
64#include <dirent.h>
65int main(void)
66{
67 DIR *dir = 0;
68 struct dirent ent, *eres;
69 int res = readdir_r (dir, &ent, &eres);
70 return 0;
71}
72],ac_cv_readdir_r=yes,ac_cv_readdir_r=no)])
73test $ac_cv_readdir_r = yes && AC_DEFINE(HAVE_READDIR_R, 1, readdir_r is available)
74
75AC_CACHE_CHECK(for sendfile, ac_cv_sendfile, [AC_LINK_IFELSE([ 81AC_CACHE_CHECK(for sendfile, ac_cv_sendfile, [AC_LINK_IFELSE([
76# include <sys/types.h> 82# include <sys/types.h>
77#if __linux 83#if __linux
78# include <sys/sendfile.h> 84# include <sys/sendfile.h>
79#elif __freebsd 85#elif __FreeBSD__ || defined __APPLE__
80# include <sys/socket.h> 86# include <sys/socket.h>
81# include <sys/uio.h> 87# include <sys/uio.h>
82#elif __hpux 88#elif __hpux
83# include <sys/socket.h> 89# include <sys/socket.h>
84#else 90#else
85# error unsupported architecture 91# error unsupported architecture
86#endif 92#endif
87int main(void) 93int main (void)
88{ 94{
89 int fd = 0; 95 int fd = 0;
90 off_t offset = 1; 96 off_t offset = 1;
91 size_t count = 2; 97 size_t count = 2;
92 ssize_t res; 98 ssize_t res;
93#if __linux 99#if __linux
94 res = sendfile (fd, fd, offset, count); 100 res = sendfile (fd, fd, offset, count);
95#elif __freebsd 101#elif __FreeBSD__
96 res = sendfile (fd, fd, offset, count, 0, &offset, 0); 102 res = sendfile (fd, fd, offset, count, 0, &offset, 0);
97#elif __hpux 103#elif __hpux
98 res = sendfile (fd, fd, offset, count, 0, 0); 104 res = sendfile (fd, fd, offset, count, 0, 0);
99#endif 105#endif
100 return 0; 106 return 0;
101} 107}
102],ac_cv_sendfile=yes,ac_cv_sendfile=no)]) 108],ac_cv_sendfile=yes,ac_cv_sendfile=no)])
103test $ac_cv_sendfile = yes && AC_DEFINE(HAVE_SENDFILE, 1, sendfile(2) is available and supported) 109test $ac_cv_sendfile = yes && AC_DEFINE(HAVE_SENDFILE, 1, sendfile(2) is available and supported)
104 110
111AC_CACHE_CHECK(for sync_file_range, ac_cv_sync_file_range, [AC_LINK_IFELSE([
112#include <fcntl.h>
113int main (void)
114{
115 int fd = 0;
116 off64_t offset = 1;
117 off64_t nbytes = 1;
118 unsigned int flags = SYNC_FILE_RANGE_WAIT_BEFORE|SYNC_FILE_RANGE_WRITE|SYNC_FILE_RANGE_WAIT_AFTER;
119 ssize_t res;
120 res = sync_file_range (fd, offset, nbytes, flags);
121 return 0;
122}
123],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)
125
126AC_CACHE_CHECK(for fallocate, ac_cv_fallocate, [AC_LINK_IFELSE([
127#include <fcntl.h>
128int main (void)
129{
130 int fd = 0;
131 int mode = 0;
132 off_t offset = 1;
133 off_t len = 1;
134 int res;
135 res = fallocate (fd, mode, offset, len);
136 return 0;
137}
138],ac_cv_fallocate=yes,ac_cv_fallocate=no)])
139test $ac_cv_fallocate = yes && AC_DEFINE(HAVE_FALLOCATE, 1, fallocate(2) is available)
140
141AC_CACHE_CHECK(for sys_syncfs, ac_cv_sys_syncfs, [AC_LINK_IFELSE([
142#include <unistd.h>
143#include <sys/syscall.h>
144int main (void)
145{
146 int res = syscall (__NR_syncfs, (int)0);
147}
148],ac_cv_sys_syncfs=yes,ac_cv_sys_syncfs=no)])
149test $ac_cv_sys_syncfs = yes && AC_DEFINE(HAVE_SYS_SYNCFS, 1, syscall(__NR_syncfs) is available)
150
151dnl #############################################################################
152dnl # these checks exist for the benefit of IO::AIO
153
154dnl at least uclibc defines _POSIX_ADVISORY_INFO without *any* of the required
155dnl functionality actually being present. ugh.
156AC_CACHE_CHECK(for posix_madvise, ac_cv_posix_madvise, [AC_LINK_IFELSE([
157#include <sys/mman.h>
158int main (void)
159{
160 int res = posix_madvise ((void *)0, (size_t)0, POSIX_MADV_NORMAL);
161 int a = POSIX_MADV_SEQUENTIAL;
162 int b = POSIX_MADV_RANDOM;
163 int c = POSIX_MADV_WILLNEED;
164 int d = POSIX_MADV_DONTNEED;
165 return 0;
166}
167],ac_cv_posix_madvise=yes,ac_cv_posix_madvise=no)])
168test $ac_cv_posix_madvise = yes && AC_DEFINE(HAVE_POSIX_MADVISE, 1, posix_madvise(2) is available)
169
170AC_CACHE_CHECK(for posix_fadvise, ac_cv_posix_fadvise, [AC_LINK_IFELSE([
171#define _XOPEN_SOURCE 600
172#include <fcntl.h>
173int main (void)
174{
175 int res = posix_fadvise ((int)0, (off_t)0, (off_t)0, POSIX_FADV_NORMAL);
176 int a = POSIX_FADV_SEQUENTIAL;
177 int b = POSIX_FADV_NOREUSE;
178 int c = POSIX_FADV_RANDOM;
179 int d = POSIX_FADV_WILLNEED;
180 int e = POSIX_FADV_DONTNEED;
181 return 0;
182}
183],ac_cv_posix_fadvise=yes,ac_cv_posix_fadvise=no)])
184test $ac_cv_posix_fadvise = yes && AC_DEFINE(HAVE_POSIX_FADVISE, 1, posix_fadvise(2) is available)
185

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