| 1 |
dnl openbsd in its 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]) |
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|
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AC_SEARCH_LIBS( |
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pthread_create, |
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[pthread pthreads pthreadVC2], |
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, |
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[AC_MSG_ERROR(pthread functions not found)] |
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) |
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|
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AC_CACHE_CHECK(for utimes, ac_cv_utimes, [AC_LINK_IFELSE([AC_LANG_SOURCE([[ |
| 13 |
#include <sys/types.h> |
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#include <sys/time.h> |
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#include <utime.h> |
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struct timeval tv[2]; |
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int res; |
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int main (void) |
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{ |
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res = utimes ("/", tv); |
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return 0; |
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} |
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]])],ac_cv_utimes=yes,ac_cv_utimes=no)]) |
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test $ac_cv_utimes = yes && AC_DEFINE(HAVE_UTIMES, 1, utimes(2) is available) |
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|
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AC_CACHE_CHECK(for futimes, ac_cv_futimes, [AC_LINK_IFELSE([AC_LANG_SOURCE([[ |
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#include <sys/types.h> |
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#include <sys/time.h> |
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#include <utime.h> |
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struct timeval tv[2]; |
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int res; |
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int fd; |
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int main (void) |
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{ |
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res = futimes (fd, tv); |
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return 0; |
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} |
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]])],ac_cv_futimes=yes,ac_cv_futimes=no)]) |
| 39 |
test $ac_cv_futimes = yes && AC_DEFINE(HAVE_FUTIMES, 1, futimes(2) is available) |
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|
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AC_CACHE_CHECK(for readahead, ac_cv_readahead, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
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#include <fcntl.h> |
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int main (void) |
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{ |
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int fd = 0; |
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size_t count = 2; |
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ssize_t res; |
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res = readahead (fd, 0, count); |
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return 0; |
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} |
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])],ac_cv_readahead=yes,ac_cv_readahead=no)]) |
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test $ac_cv_readahead = yes && AC_DEFINE(HAVE_READAHEAD, 1, readahead(2) is available (linux)) |
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|
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AC_CACHE_CHECK(for fdatasync, ac_cv_fdatasync, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
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#include <unistd.h> |
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int main (void) |
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{ |
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int fd = 0; |
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fdatasync (fd); |
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return 0; |
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} |
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])],ac_cv_fdatasync=yes,ac_cv_fdatasync=no)]) |
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test $ac_cv_fdatasync = yes && AC_DEFINE(HAVE_FDATASYNC, 1, fdatasync(2) is available) |
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|
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AC_CACHE_CHECK(for sendfile, ac_cv_sendfile, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
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# include <sys/types.h> |
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#if __linux |
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# include <sys/sendfile.h> |
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#elif __FreeBSD__ || defined __APPLE__ |
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# include <sys/socket.h> |
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# include <sys/uio.h> |
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#elif __hpux |
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# include <sys/socket.h> |
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#else |
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# error unsupported architecture |
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#endif |
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int main (void) |
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{ |
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int fd = 0; |
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off_t offset = 1; |
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size_t count = 2; |
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ssize_t res; |
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#if __linux |
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res = sendfile (fd, fd, &offset, count); |
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#elif __FreeBSD__ |
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res = sendfile (fd, fd, offset, count, 0, &offset, 0); |
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#elif __hpux |
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res = sendfile (fd, fd, offset, count, 0, 0); |
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#endif |
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return 0; |
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} |
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])],ac_cv_sendfile=yes,ac_cv_sendfile=no)]) |
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test $ac_cv_sendfile = yes && AC_DEFINE(HAVE_SENDFILE, 1, sendfile(2) is available and supported) |
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|
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AC_CACHE_CHECK(for sync_file_range, ac_cv_sync_file_range, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
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#include <fcntl.h> |
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int main (void) |
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{ |
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int fd = 0; |
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off64_t offset = 1; |
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off64_t nbytes = 1; |
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unsigned int flags = SYNC_FILE_RANGE_WAIT_BEFORE|SYNC_FILE_RANGE_WRITE|SYNC_FILE_RANGE_WAIT_AFTER; |
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ssize_t res; |
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res = sync_file_range (fd, offset, nbytes, flags); |
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return 0; |
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} |
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])],ac_cv_sync_file_range=yes,ac_cv_sync_file_range=no)]) |
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test $ac_cv_sync_file_range = yes && AC_DEFINE(HAVE_SYNC_FILE_RANGE, 1, sync_file_range(2) is available) |
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|
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AC_CACHE_CHECK(for fallocate, ac_cv_linux_fallocate, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
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#include <fcntl.h> |
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int main (void) |
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{ |
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int fd = 0; |
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int mode = 0; |
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off_t offset = 1; |
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off_t len = 1; |
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int res; |
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res = fallocate (fd, mode, offset, len); |
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return 0; |
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} |
| 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) |
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|
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AC_CACHE_CHECK(for sys_syncfs, ac_cv_sys_syncfs, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
| 126 |
#include <unistd.h> |
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#include <sys/syscall.h> |
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int main (void) |
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{ |
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int res = syscall (__NR_syncfs, (int)0); |
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} |
| 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 |
|
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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 |
{ |
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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) |
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|
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AC_CACHE_CHECK(for posix_close, ac_cv_posix_close, [AC_LINK_IFELSE([AC_LANG_SOURCE([[ |
| 146 |
#include <unistd.h> |
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int res; |
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int main (void) |
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{ |
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res = posix_close (0, 0); /* we do not need any flags */ |
| 151 |
return 0; |
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} |
| 153 |
]])],ac_cv_posix_close=yes,ac_cv_posix_close=no)]) |
| 154 |
test $ac_cv_posix_close = yes && AC_DEFINE(HAVE_POSIX_CLOSE, 1, posix_close(2) is available) |
| 155 |
|
| 156 |
AC_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> |
| 160 |
int res; |
| 161 |
int main (void) |
| 162 |
{ |
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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)]) |
| 167 |
test $ac_cv_renameat2 = yes && AC_DEFINE(HAVE_RENAMEAT2, 1, renameat2(2) is available) |
| 168 |
|
