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Comparing libeio/libeio.m4 (file contents):
Revision 1.21 by root, Tue Nov 13 19:49:32 2012 UTC vs.
Revision 1.32 by root, Sun Aug 12 04:15:05 2018 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 sys/syscall.h sys/prctl.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([AC_LANG_SOURCE([ 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([AC_LANG_SOURCE([ 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([AC_LANG_SOURCE([ 41AC_CACHE_CHECK(for readahead, ac_cv_readahead, [AC_LINK_IFELSE([AC_LANG_SOURCE([
42#include <fcntl.h> 42#include <fcntl.h>
43int main (void) 43int main (void)
… …
79 int fd = 0; 79 int fd = 0;
80 off_t offset = 1; 80 off_t offset = 1;
81 size_t count = 2; 81 size_t count = 2;
82 ssize_t res; 82 ssize_t res;
83#if __linux 83#if __linux
84 res = sendfile (fd, fd, offset, count); 84 res = sendfile (fd, fd, &offset, count);
85#elif __FreeBSD__ 85#elif __FreeBSD__
86 res = sendfile (fd, fd, offset, count, 0, &offset, 0); 86 res = sendfile (fd, fd, offset, count, 0, &offset, 0);
87#elif __hpux 87#elif __hpux
88 res = sendfile (fd, fd, offset, count, 0, 0); 88 res = sendfile (fd, fd, offset, count, 0, 0);
89#endif 89#endif
… …
134 134
135AC_CACHE_CHECK(for prctl_set_name, ac_cv_prctl_set_name, [AC_LINK_IFELSE([AC_LANG_SOURCE([ 135AC_CACHE_CHECK(for prctl_set_name, ac_cv_prctl_set_name, [AC_LINK_IFELSE([AC_LANG_SOURCE([
136#include <sys/prctl.h> 136#include <sys/prctl.h>
137int main (void) 137int main (void)
138{ 138{
139 char name[] = "test123"; 139 char *name = "test123";
140 int res = prctl (PR_SET_NAME, (unsigned long)name, 0, 0, 0); 140 int res = prctl (PR_SET_NAME, (unsigned long)name, 0, 0, 0);
141} 141}
142])],ac_cv_prctl_set_name=yes,ac_cv_prctl_set_name=no)]) 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) 143test $ac_cv_prctl_set_name = yes && AC_DEFINE(HAVE_PRCTL_SET_NAME, 1, prctl(PR_SET_NAME) is available)
144 144
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([AC_LANG_SOURCE([ 145AC_CACHE_CHECK(for posix_close, ac_cv_posix_close, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
151#include <sys/mman.h> 146#include <unistd.h>
147int res;
152int main (void) 148int main (void)
153{ 149{
154 int res = posix_madvise ((void *)0, (size_t)0, POSIX_MADV_NORMAL); 150 res = posix_close (0, 0); /* we do not need any flags */
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; 151 return 0;
160} 152}
161])],ac_cv_posix_madvise=yes,ac_cv_posix_madvise=no)]) 153]])],ac_cv_posix_close=yes,ac_cv_posix_close=no)])
162test $ac_cv_posix_madvise = yes && AC_DEFINE(HAVE_POSIX_MADVISE, 1, posix_madvise(2) is available) 154test $ac_cv_posix_close = yes && AC_DEFINE(HAVE_POSIX_CLOSE, 1, posix_close(2) is available)
163 155
164AC_CACHE_CHECK(for posix_fadvise, ac_cv_posix_fadvise, [AC_LINK_IFELSE([AC_LANG_SOURCE([ 156AC_CACHE_CHECK(for renameat2, ac_cv_renameat2, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
165#define _XOPEN_SOURCE 600
166#include <fcntl.h> 157#include <unistd.h>
158#include <sys/syscall.h>
159#include <linux/fs.h>
160int res;
167int main (void) 161int main (void)
168{ 162{
169 int res = posix_fadvise ((int)0, (off_t)0, (off_t)0, POSIX_FADV_NORMAL); 163 res = syscall (SYS_renameat2, 0, 0, 0, 0, RENAME_EXCHANGE | RENAME_NOREPLACE);
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; 164 return 0;
176} 165}
177])],ac_cv_posix_fadvise=yes,ac_cv_posix_fadvise=no)]) 166]])],ac_cv_renameat2=yes,ac_cv_renameat2=no)])
178test $ac_cv_posix_fadvise = yes && AC_DEFINE(HAVE_POSIX_FADVISE, 1, posix_fadvise(2) is available) 167test $ac_cv_renameat2 = yes && AC_DEFINE(HAVE_RENAMEAT2, 1, renameat2(2) is available)
179 168
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([AC_LANG_SOURCE([
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

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