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 sys/prctl.h]) 4 5AC_SEARCH_LIBS( 6 pthread_create, 7 [pthread pthreads pthreadVC2], 8 , 9 [AC_MSG_ERROR(pthread functions not found)] 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) 25 26AC_CACHE_CHECK(for futimes, ac_cv_futimes, [AC_LINK_IFELSE([[ 27#include <sys/types.h> 28#include <sys/time.h> 29#include <utime.h> 30struct timeval tv[2]; 31int res; 32int fd; 33int main (void) 34{ 35 res = futimes (fd, tv); 36 return 0; 37} 38]],ac_cv_futimes=yes,ac_cv_futimes=no)]) 39test $ac_cv_futimes = yes && AC_DEFINE(HAVE_FUTIMES, 1, futimes(2) is available) 40 41AC_CACHE_CHECK(for readahead, ac_cv_readahead, [AC_LINK_IFELSE([ 42#include <fcntl.h> 43int 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)]) 52test $ac_cv_readahead = yes && AC_DEFINE(HAVE_READAHEAD, 1, readahead(2) is available (linux)) 53 54AC_CACHE_CHECK(for fdatasync, ac_cv_fdatasync, [AC_LINK_IFELSE([ 55#include <unistd.h> 56int main (void) 57{ 58 int fd = 0; 59 fdatasync (fd); 60 return 0; 61} 62],ac_cv_fdatasync=yes,ac_cv_fdatasync=no)]) 63test $ac_cv_fdatasync = yes && AC_DEFINE(HAVE_FDATASYNC, 1, fdatasync(2) is available) 64 65AC_CACHE_CHECK(for sendfile, ac_cv_sendfile, [AC_LINK_IFELSE([ 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 77int 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)]) 93test $ac_cv_sendfile = yes && AC_DEFINE(HAVE_SENDFILE, 1, sendfile(2) is available and supported) 94 95AC_CACHE_CHECK(for sync_file_range, ac_cv_sync_file_range, [AC_LINK_IFELSE([ 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([ 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([ 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([ 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 145dnl ############################################################################# 146dnl # these checks exist for the benefit of IO::AIO 147 148dnl at least uclibc defines _POSIX_ADVISORY_INFO without *any* of the required 149dnl functionality actually being present. ugh. 150AC_CACHE_CHECK(for posix_madvise, ac_cv_posix_madvise, [AC_LINK_IFELSE([ 151#include <sys/mman.h> 152int 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)]) 162test $ac_cv_posix_madvise = yes && AC_DEFINE(HAVE_POSIX_MADVISE, 1, posix_madvise(2) is available) 163 164AC_CACHE_CHECK(for posix_fadvise, ac_cv_posix_fadvise, [AC_LINK_IFELSE([ 165#define _XOPEN_SOURCE 600 166#include <fcntl.h> 167int 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)]) 178test $ac_cv_posix_fadvise = yes && AC_DEFINE(HAVE_POSIX_FADVISE, 1, posix_fadvise(2) is available) 179 180dnl lots of linux specifics 181AC_CHECK_HEADERS([linux/fs.h linux/fiemap.h]) 182 183AC_CACHE_CHECK([for splice, vmsplice and tee], ac_cv_linux_splice, [AC_LINK_IFELSE([ 184#include <fcntl.h> 185int 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)]) 194test $ac_cv_linux_splice = yes && AC_DEFINE(HAVE_LINUX_SPLICE, 1, splice/vmsplice/tee(2) are available) 195 196