| 1 |
dnl openbsd in it's neverending brokenness requires stdint.h for intptr_t, |
| 2 |
dnl but that header isn't very portable... |
| 3 |
AC_CHECK_HEADERS([stdint.h sys/syscall.h sys/prctl.h]) |
| 4 |
|
| 5 |
AC_SEARCH_LIBS( |
| 6 |
pthread_create, |
| 7 |
[pthread pthreads pthreadVC2], |
| 8 |
, |
| 9 |
[AC_MSG_ERROR(pthread functions not found)] |
| 10 |
) |
| 11 |
|
| 12 |
AC_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> |
| 16 |
struct timeval tv[2]; |
| 17 |
int res; |
| 18 |
int main (void) |
| 19 |
{ |
| 20 |
res = utimes ("/", tv); |
| 21 |
return 0; |
| 22 |
} |
| 23 |
]])],ac_cv_utimes=yes,ac_cv_utimes=no)]) |
| 24 |
test $ac_cv_utimes = yes && AC_DEFINE(HAVE_UTIMES, 1, utimes(2) is available) |
| 25 |
|
| 26 |
AC_CACHE_CHECK(for futimes, ac_cv_futimes, [AC_LINK_IFELSE([AC_LANG_SOURCE([[ |
| 27 |
#include <sys/types.h> |
| 28 |
#include <sys/time.h> |
| 29 |
#include <utime.h> |
| 30 |
struct timeval tv[2]; |
| 31 |
int res; |
| 32 |
int fd; |
| 33 |
int main (void) |
| 34 |
{ |
| 35 |
res = futimes (fd, tv); |
| 36 |
return 0; |
| 37 |
} |
| 38 |
]])],ac_cv_futimes=yes,ac_cv_futimes=no)]) |
| 39 |
test $ac_cv_futimes = yes && AC_DEFINE(HAVE_FUTIMES, 1, futimes(2) is available) |
| 40 |
|
| 41 |
AC_CACHE_CHECK(for readahead, ac_cv_readahead, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
| 42 |
#include <fcntl.h> |
| 43 |
int main (void) |
| 44 |
{ |
| 45 |
int fd = 0; |
| 46 |
size_t count = 2; |
| 47 |
ssize_t res; |
| 48 |
res = readahead (fd, 0, count); |
| 49 |
return 0; |
| 50 |
} |
| 51 |
])],ac_cv_readahead=yes,ac_cv_readahead=no)]) |
| 52 |
test $ac_cv_readahead = yes && AC_DEFINE(HAVE_READAHEAD, 1, readahead(2) is available (linux)) |
| 53 |
|
| 54 |
AC_CACHE_CHECK(for fdatasync, ac_cv_fdatasync, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
| 55 |
#include <unistd.h> |
| 56 |
int main (void) |
| 57 |
{ |
| 58 |
int fd = 0; |
| 59 |
fdatasync (fd); |
| 60 |
return 0; |
| 61 |
} |
| 62 |
])],ac_cv_fdatasync=yes,ac_cv_fdatasync=no)]) |
| 63 |
test $ac_cv_fdatasync = yes && AC_DEFINE(HAVE_FDATASYNC, 1, fdatasync(2) is available) |
| 64 |
|
| 65 |
AC_CACHE_CHECK(for sendfile, ac_cv_sendfile, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
| 66 |
# include <sys/types.h> |
| 67 |
#if __linux |
| 68 |
# include <sys/sendfile.h> |
| 69 |
#elif __FreeBSD__ || defined __APPLE__ |
| 70 |
# include <sys/socket.h> |
| 71 |
# include <sys/uio.h> |
| 72 |
#elif __hpux |
| 73 |
# include <sys/socket.h> |
| 74 |
#else |
| 75 |
# error unsupported architecture |
| 76 |
#endif |
| 77 |
int main (void) |
| 78 |
{ |
| 79 |
int fd = 0; |
| 80 |
off_t offset = 1; |
| 81 |
size_t count = 2; |
| 82 |
ssize_t res; |
| 83 |
#if __linux |
| 84 |
res = sendfile (fd, fd, offset, count); |
| 85 |
#elif __FreeBSD__ |
| 86 |
res = sendfile (fd, fd, offset, count, 0, &offset, 0); |
| 87 |
#elif __hpux |
| 88 |
res = sendfile (fd, fd, offset, count, 0, 0); |
| 89 |
#endif |
| 90 |
return 0; |
| 91 |
} |
| 92 |
])],ac_cv_sendfile=yes,ac_cv_sendfile=no)]) |
| 93 |
test $ac_cv_sendfile = yes && AC_DEFINE(HAVE_SENDFILE, 1, sendfile(2) is available and supported) |
| 94 |
|
| 95 |
AC_CACHE_CHECK(for sync_file_range, ac_cv_sync_file_range, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
| 96 |
#include <fcntl.h> |
| 97 |
int 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)]) |
| 108 |
test $ac_cv_sync_file_range = yes && AC_DEFINE(HAVE_SYNC_FILE_RANGE, 1, sync_file_range(2) is available) |
| 109 |
|
| 110 |
AC_CACHE_CHECK(for fallocate, ac_cv_linux_fallocate, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
| 111 |
#include <fcntl.h> |
| 112 |
int 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)]) |
| 123 |
test $ac_cv_linux_fallocate = yes && AC_DEFINE(HAVE_LINUX_FALLOCATE, 1, fallocate(2) is available) |
| 124 |
|
| 125 |
AC_CACHE_CHECK(for sys_syncfs, ac_cv_sys_syncfs, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
| 126 |
#include <unistd.h> |
| 127 |
#include <sys/syscall.h> |
| 128 |
int main (void) |
| 129 |
{ |
| 130 |
int res = syscall (__NR_syncfs, (int)0); |
| 131 |
} |
| 132 |
])],ac_cv_sys_syncfs=yes,ac_cv_sys_syncfs=no)]) |
| 133 |
test $ac_cv_sys_syncfs = yes && AC_DEFINE(HAVE_SYS_SYNCFS, 1, syscall(__NR_syncfs) is available) |
| 134 |
|
| 135 |
AC_CACHE_CHECK(for prctl_set_name, ac_cv_prctl_set_name, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
| 136 |
#include <sys/prctl.h> |
| 137 |
int 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)]) |
| 143 |
test $ac_cv_prctl_set_name = yes && AC_DEFINE(HAVE_PRCTL_SET_NAME, 1, prctl(PR_SET_NAME) is available) |
| 144 |
|
| 145 |
dnl ############################################################################# |
| 146 |
dnl # these checks exist for the benefit of IO::AIO |
| 147 |
|
| 148 |
dnl at least uclibc defines _POSIX_ADVISORY_INFO without *any* of the required |
| 149 |
dnl functionality actually being present. ugh. |
| 150 |
AC_CACHE_CHECK(for posix_madvise, ac_cv_posix_madvise, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
| 151 |
#include <sys/mman.h> |
| 152 |
int main (void) |
| 153 |
{ |
| 154 |
int res = posix_madvise ((void *)0, (size_t)0, POSIX_MADV_NORMAL); |
| 155 |
int a = POSIX_MADV_SEQUENTIAL; |
| 156 |
int b = POSIX_MADV_RANDOM; |
| 157 |
int c = POSIX_MADV_WILLNEED; |
| 158 |
int d = POSIX_MADV_DONTNEED; |
| 159 |
return 0; |
| 160 |
} |
| 161 |
])],ac_cv_posix_madvise=yes,ac_cv_posix_madvise=no)]) |
| 162 |
test $ac_cv_posix_madvise = yes && AC_DEFINE(HAVE_POSIX_MADVISE, 1, posix_madvise(2) is available) |
| 163 |
|
| 164 |
AC_CACHE_CHECK(for posix_fadvise, ac_cv_posix_fadvise, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
| 165 |
#define _XOPEN_SOURCE 600 |
| 166 |
#include <fcntl.h> |
| 167 |
int main (void) |
| 168 |
{ |
| 169 |
int res = posix_fadvise ((int)0, (off_t)0, (off_t)0, POSIX_FADV_NORMAL); |
| 170 |
int a = POSIX_FADV_SEQUENTIAL; |
| 171 |
int b = POSIX_FADV_NOREUSE; |
| 172 |
int c = POSIX_FADV_RANDOM; |
| 173 |
int d = POSIX_FADV_WILLNEED; |
| 174 |
int e = POSIX_FADV_DONTNEED; |
| 175 |
return 0; |
| 176 |
} |
| 177 |
])],ac_cv_posix_fadvise=yes,ac_cv_posix_fadvise=no)]) |
| 178 |
test $ac_cv_posix_fadvise = yes && AC_DEFINE(HAVE_POSIX_FADVISE, 1, posix_fadvise(2) is available) |
| 179 |
|
| 180 |
dnl lots of linux specifics |
| 181 |
AC_CHECK_HEADERS([linux/fs.h linux/fiemap.h]) |
| 182 |
|
| 183 |
AC_CACHE_CHECK([for splice, vmsplice and tee], ac_cv_linux_splice, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
| 184 |
#include <fcntl.h> |
| 185 |
int main (void) |
| 186 |
{ |
| 187 |
ssize_t res; |
| 188 |
res = splice ((int)0, (loff_t)0, (int)0, (loff_t *)0, (size_t)0, SPLICE_F_MOVE | SPLICE_F_NONBLOCK | SPLICE_F_MORE); |
| 189 |
res = tee ((int)0, (int)0, (size_t)0, SPLICE_F_NONBLOCK); |
| 190 |
res = vmsplice ((int)0, (struct iovec *)0, 0, SPLICE_F_NONBLOCK | SPLICE_F_GIFT); |
| 191 |
return 0; |
| 192 |
} |
| 193 |
])],ac_cv_linux_splice=yes,ac_cv_linux_splice=no)]) |
| 194 |
test $ac_cv_linux_splice = yes && AC_DEFINE(HAVE_LINUX_SPLICE, 1, splice/vmsplice/tee(2) are available) |
| 195 |
|
| 196 |
AC_CACHE_CHECK(for pipe2, ac_cv_pipe2, [AC_LINK_IFELSE([AC_LANG_SOURCE([[ |
| 197 |
#include <fcntl.h> |
| 198 |
#include <unistd.h> |
| 199 |
int res; |
| 200 |
int main (void) |
| 201 |
{ |
| 202 |
res = pipe2 (0, 0); |
| 203 |
return 0; |
| 204 |
} |
| 205 |
]])],ac_cv_pipe2=yes,ac_cv_pipe2=no)]) |
| 206 |
test $ac_cv_pipe2 = yes && AC_DEFINE(HAVE_PIPE2, 1, pipe2(2) is available) |
| 207 |
|
