libeio/libeio.m4

dnl openbsd in its neverending brokenness requires stdint.h for intptr_t,
dnl but that header isn't very portable...
AC_CHECK_HEADERS([stdint.h sys/syscall.h sys/prctl.h])

AC_SEARCH_LIBS(
   pthread_create,
   [pthread pthreads pthreadVC2],
   ,
   [AC_MSG_ERROR(pthread functions not found)]
)

AC_CACHE_CHECK(for utimes, ac_cv_utimes, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
#include <sys/types.h>
#include <sys/time.h>
#include <utime.h>
struct timeval tv[2];
int res;
int main (void)
{
   res = utimes ("/", tv);
   return 0;
}
]])],ac_cv_utimes=yes,ac_cv_utimes=no)])
test $ac_cv_utimes = yes && AC_DEFINE(HAVE_UTIMES, 1, utimes(2) is available)

AC_CACHE_CHECK(for futimes, ac_cv_futimes, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
#include <sys/types.h>
#include <sys/time.h>
#include <utime.h>
struct timeval tv[2];
int res;
int fd;
int main (void)
{
   res = futimes (fd, tv);
   return 0;
}
]])],ac_cv_futimes=yes,ac_cv_futimes=no)])
test $ac_cv_futimes = yes && AC_DEFINE(HAVE_FUTIMES, 1, futimes(2) is available)

AC_CACHE_CHECK(for readahead, ac_cv_readahead, [AC_LINK_IFELSE([AC_LANG_SOURCE([
#include <sys/types.h>
#include <fcntl.h>
int main (void)
{
   int fd = 0;
   size_t count = 2;
   ssize_t res;
   res = readahead (fd, 0, count);
   return 0;
}
])],ac_cv_readahead=yes,ac_cv_readahead=no)])
test $ac_cv_readahead = yes && AC_DEFINE(HAVE_READAHEAD, 1, readahead(2) is available (linux))

AC_CACHE_CHECK(for fdatasync, ac_cv_fdatasync, [AC_LINK_IFELSE([AC_LANG_SOURCE([
#include <unistd.h>
int main (void)
{
   int fd = 0;
   fdatasync (fd);
   return 0;
}
])],ac_cv_fdatasync=yes,ac_cv_fdatasync=no)])
test $ac_cv_fdatasync = yes && AC_DEFINE(HAVE_FDATASYNC, 1, fdatasync(2) is available)

AC_CACHE_CHECK(for sendfile, ac_cv_sendfile, [AC_LINK_IFELSE([AC_LANG_SOURCE([
# include <sys/types.h>
#if __linux
# include <sys/sendfile.h>
#elif __FreeBSD__ || defined __APPLE__
# include <sys/socket.h>
# include <sys/uio.h>
#elif __hpux
# include <sys/socket.h>
#else
# error unsupported architecture
#endif
int main (void)
{
   int fd = 0;
   off_t offset = 1;
   size_t count = 2;
   ssize_t res;
#if __linux
   res = sendfile (fd, fd, &offset, count);
#elif __FreeBSD__
   res = sendfile (fd, fd, offset, count, 0, &offset, 0);
#elif __hpux
   res = sendfile (fd, fd, offset, count, 0, 0);
#endif
   return 0;
}
])],ac_cv_sendfile=yes,ac_cv_sendfile=no)])
test $ac_cv_sendfile = yes && AC_DEFINE(HAVE_SENDFILE, 1, sendfile(2) is available and supported)

AC_CACHE_CHECK(for sync_file_range, ac_cv_sync_file_range, [AC_LINK_IFELSE([AC_LANG_SOURCE([
#include <sys/types.h>
#include <fcntl.h>
int main (void)
{
   int fd = 0;
   off64_t offset = 1;
   off64_t nbytes = 1;
   unsigned int flags = SYNC_FILE_RANGE_WAIT_BEFORE|SYNC_FILE_RANGE_WRITE|SYNC_FILE_RANGE_WAIT_AFTER;
   ssize_t res;
   res = sync_file_range (fd, offset, nbytes, flags);
   return 0;
}
])],ac_cv_sync_file_range=yes,ac_cv_sync_file_range=no)])
test $ac_cv_sync_file_range = yes && AC_DEFINE(HAVE_SYNC_FILE_RANGE, 1, sync_file_range(2) is available)

AC_CACHE_CHECK(for fallocate, ac_cv_linux_fallocate, [AC_LINK_IFELSE([AC_LANG_SOURCE([
#include <fcntl.h>
int main (void)
{
   int fd = 0;
   int mode = 0;
   off_t offset = 1;
   off_t len = 1;
   int res;
   res = fallocate (fd, mode, offset, len);
   return 0;
}
])],ac_cv_linux_fallocate=yes,ac_cv_linux_fallocate=no)])
test $ac_cv_linux_fallocate = yes && AC_DEFINE(HAVE_LINUX_FALLOCATE, 1, fallocate(2) is available)

AC_CACHE_CHECK(for sys_syncfs, ac_cv_sys_syncfs, [AC_LINK_IFELSE([AC_LANG_SOURCE([
#include <unistd.h>
#include <sys/syscall.h>
int main (void)
{
  int res = syscall (__NR_syncfs, (int)0);
}
])],ac_cv_sys_syncfs=yes,ac_cv_sys_syncfs=no)])
test $ac_cv_sys_syncfs = yes && AC_DEFINE(HAVE_SYS_SYNCFS, 1, syscall(__NR_syncfs) is available)

AC_CACHE_CHECK(for prctl_set_name, ac_cv_prctl_set_name, [AC_LINK_IFELSE([AC_LANG_SOURCE([
#include <sys/prctl.h>
int main (void)
{
  char *name = "test123";
  int res = prctl (PR_SET_NAME, (unsigned long)name, 0, 0, 0);
}
])],ac_cv_prctl_set_name=yes,ac_cv_prctl_set_name=no)])
test $ac_cv_prctl_set_name = yes && AC_DEFINE(HAVE_PRCTL_SET_NAME, 1, prctl(PR_SET_NAME) is available)

AC_CACHE_CHECK(for posix_close, ac_cv_posix_close, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
#include <unistd.h>
int res;
int main (void)
{
   res = posix_close (0, 0); /* we do not need any flags */
   return 0;
}
]])],ac_cv_posix_close=yes,ac_cv_posix_close=no)])
test $ac_cv_posix_close = yes && AC_DEFINE(HAVE_POSIX_CLOSE, 1, posix_close(2) is available)

AC_CACHE_CHECK(for renameat2, ac_cv_renameat2, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
#include <unistd.h>
#include <sys/syscall.h>
#include <linux/fs.h>
int res;
int main (void)
{
   res = syscall (SYS_renameat2, 0, 0, 0, 0, RENAME_EXCHANGE | RENAME_NOREPLACE);
   return 0;
}
]])],ac_cv_renameat2=yes,ac_cv_renameat2=no)])
test $ac_cv_renameat2 = yes && AC_DEFINE(HAVE_RENAMEAT2, 1, renameat2(2) is available)

Revision:	1.33
Committed:	Sun Mar 10 12:11:47 2019 UTC (5 years, 2 months ago) by root
Branch:	MAIN
CVS Tags:	rel-4_81, rel-4_80, rel-4_78, rel-4_79, rel-4_74, rel-4_75, rel-4_76, rel-4_77, rel-4_71, rel-4_72, rel-4_73
Changes since 1.32:	+2 -0 lines
Log Message:	4.71
#	User	Rev	Content
1	root	1.32	dnl openbsd in its neverending brokenness requires stdint.h for intptr_t,
2	root	1.13	dnl but that header isn't very portable...
3	root	1.17	AC_CHECK_HEADERS([stdint.h sys/syscall.h sys/prctl.h])
4	root	1.13
5	root	1.2	AC_SEARCH_LIBS(
6			pthread_create,
7			[pthread pthreads pthreadVC2],
8			,
9			[AC_MSG_ERROR(pthread functions not found)]
10			)
11
12	root	1.22	AC_CACHE_CHECK(for utimes, ac_cv_utimes, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
13	root	1.11	#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	root	1.22	]])],ac_cv_utimes=yes,ac_cv_utimes=no)])
24	root	1.11	test $ac_cv_utimes = yes && AC_DEFINE(HAVE_UTIMES, 1, utimes(2) is available)
25
26	root	1.22	AC_CACHE_CHECK(for futimes, ac_cv_futimes, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
27	root	1.1	#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	root	1.10	int main (void)
34	root	1.1	{
35			res = futimes (fd, tv);
36			return 0;
37			}
38	root	1.22	]])],ac_cv_futimes=yes,ac_cv_futimes=no)])
39	root	1.1	test $ac_cv_futimes = yes && AC_DEFINE(HAVE_FUTIMES, 1, futimes(2) is available)
40
41	root	1.21	AC_CACHE_CHECK(for readahead, ac_cv_readahead, [AC_LINK_IFELSE([AC_LANG_SOURCE([
42	root	1.33	#include <sys/types.h>
43	root	1.1	#include <fcntl.h>
44	root	1.10	int main (void)
45	root	1.1	{
46			int fd = 0;
47			size_t count = 2;
48			ssize_t res;
49	root	1.5	res = readahead (fd, 0, count);
50	root	1.1	return 0;
51			}
52	root	1.21	])],ac_cv_readahead=yes,ac_cv_readahead=no)])
53	root	1.1	test $ac_cv_readahead = yes && AC_DEFINE(HAVE_READAHEAD, 1, readahead(2) is available (linux))
54
55	root	1.21	AC_CACHE_CHECK(for fdatasync, ac_cv_fdatasync, [AC_LINK_IFELSE([AC_LANG_SOURCE([
56	root	1.1	#include <unistd.h>
57	root	1.10	int main (void)
58	root	1.1	{
59			int fd = 0;
60			fdatasync (fd);
61			return 0;
62			}
63	root	1.21	])],ac_cv_fdatasync=yes,ac_cv_fdatasync=no)])
64	root	1.1	test $ac_cv_fdatasync = yes && AC_DEFINE(HAVE_FDATASYNC, 1, fdatasync(2) is available)
65
66	root	1.21	AC_CACHE_CHECK(for sendfile, ac_cv_sendfile, [AC_LINK_IFELSE([AC_LANG_SOURCE([
67	root	1.1	# include <sys/types.h>
68			#if __linux
69			# include <sys/sendfile.h>
70	root	1.9	#elif __FreeBSD__ \|\| defined __APPLE__
71	root	1.1	# include <sys/socket.h>
72			# include <sys/uio.h>
73			#elif __hpux
74			# include <sys/socket.h>
75			#else
76			# error unsupported architecture
77			#endif
78	root	1.10	int main (void)
79	root	1.1	{
80			int fd = 0;
81			off_t offset = 1;
82			size_t count = 2;
83			ssize_t res;
84			#if __linux
85	root	1.24	res = sendfile (fd, fd, &offset, count);
86	root	1.9	#elif __FreeBSD__
87	root	1.1	res = sendfile (fd, fd, offset, count, 0, &offset, 0);
88			#elif __hpux
89			res = sendfile (fd, fd, offset, count, 0, 0);
90			#endif
91			return 0;
92			}
93	root	1.21	])],ac_cv_sendfile=yes,ac_cv_sendfile=no)])
94	root	1.1	test $ac_cv_sendfile = yes && AC_DEFINE(HAVE_SENDFILE, 1, sendfile(2) is available and supported)
95
96	root	1.21	AC_CACHE_CHECK(for sync_file_range, ac_cv_sync_file_range, [AC_LINK_IFELSE([AC_LANG_SOURCE([
97	root	1.33	#include <sys/types.h>
98	root	1.7	#include <fcntl.h>
99	root	1.10	int main (void)
100	root	1.7	{
101			int fd = 0;
102			off64_t offset = 1;
103			off64_t nbytes = 1;
104			unsigned int flags = SYNC_FILE_RANGE_WAIT_BEFORE\|SYNC_FILE_RANGE_WRITE\|SYNC_FILE_RANGE_WAIT_AFTER;
105			ssize_t res;
106			res = sync_file_range (fd, offset, nbytes, flags);
107			return 0;
108			}
109	root	1.21	])],ac_cv_sync_file_range=yes,ac_cv_sync_file_range=no)])
110	root	1.7	test $ac_cv_sync_file_range = yes && AC_DEFINE(HAVE_SYNC_FILE_RANGE, 1, sync_file_range(2) is available)
111
112	root	1.21	AC_CACHE_CHECK(for fallocate, ac_cv_linux_fallocate, [AC_LINK_IFELSE([AC_LANG_SOURCE([
113	root	1.14	#include <fcntl.h>
114			int main (void)
115			{
116			int fd = 0;
117	root	1.15	int mode = 0;
118	root	1.14	off_t offset = 1;
119			off_t len = 1;
120			int res;
121			res = fallocate (fd, mode, offset, len);
122			return 0;
123			}
124	root	1.21	])],ac_cv_linux_fallocate=yes,ac_cv_linux_fallocate=no)])
125	root	1.18	test $ac_cv_linux_fallocate = yes && AC_DEFINE(HAVE_LINUX_FALLOCATE, 1, fallocate(2) is available)
126	root	1.14
127	root	1.21	AC_CACHE_CHECK(for sys_syncfs, ac_cv_sys_syncfs, [AC_LINK_IFELSE([AC_LANG_SOURCE([
128	root	1.16	#include <unistd.h>
129			#include <sys/syscall.h>
130			int main (void)
131			{
132			int res = syscall (__NR_syncfs, (int)0);
133			}
134	root	1.21	])],ac_cv_sys_syncfs=yes,ac_cv_sys_syncfs=no)])
135	root	1.16	test $ac_cv_sys_syncfs = yes && AC_DEFINE(HAVE_SYS_SYNCFS, 1, syscall(__NR_syncfs) is available)
136
137	root	1.21	AC_CACHE_CHECK(for prctl_set_name, ac_cv_prctl_set_name, [AC_LINK_IFELSE([AC_LANG_SOURCE([
138	root	1.17	#include <sys/prctl.h>
139			int main (void)
140			{
141	root	1.24	char *name = "test123";
142	root	1.17	int res = prctl (PR_SET_NAME, (unsigned long)name, 0, 0, 0);
143			}
144	root	1.21	])],ac_cv_prctl_set_name=yes,ac_cv_prctl_set_name=no)])
145	root	1.17	test $ac_cv_prctl_set_name = yes && AC_DEFINE(HAVE_PRCTL_SET_NAME, 1, prctl(PR_SET_NAME) is available)
146
147	root	1.32	AC_CACHE_CHECK(for posix_close, ac_cv_posix_close, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
148	root	1.23	#include <unistd.h>
149			int res;
150			int main (void)
151			{
152	root	1.32	res = posix_close (0, 0); /* we do not need any flags */
153	root	1.23	return 0;
154			}
155	root	1.32	]])],ac_cv_posix_close=yes,ac_cv_posix_close=no)])
156			test $ac_cv_posix_close = yes && AC_DEFINE(HAVE_POSIX_CLOSE, 1, posix_close(2) is available)
157	root	1.31
158	root	1.24	AC_CACHE_CHECK(for renameat2, ac_cv_renameat2, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
159			#include <unistd.h>
160			#include <sys/syscall.h>
161			#include <linux/fs.h>
162			int res;
163			int main (void)
164			{
165			res = syscall (SYS_renameat2, 0, 0, 0, 0, RENAME_EXCHANGE \| RENAME_NOREPLACE);
166			return 0;
167			}
168			]])],ac_cv_renameat2=yes,ac_cv_renameat2=no)])
169			test $ac_cv_renameat2 = yes && AC_DEFINE(HAVE_RENAMEAT2, 1, renameat2(2) is available)
170