IO-AIO/configure.ac

AC_INIT
AC_CONFIG_SRCDIR([libeio/eio.h])
AC_CONFIG_HEADERS([config.h])

AC_PREREQ(2.60)
AC_USE_SYSTEM_EXTENSIONS

AC_PROG_CC

m4_include([libeio/libeio.m4])

# for these to work, you need to run autoheader in IO::AIO, not libeio :(

AC_CACHE_CHECK(for set/getrlimit, ac_cv_rlimits, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
#include <sys/time.h>
#include <sys/resource.h>
int res;
int main (void)
{
   struct rlimit srl;
   srl.rlim_cur = srl.rlim_max = RLIM_INFINITY;
   res = getrlimit (RLIMIT_NOFILE, &srl);
   res = setrlimit (RLIMIT_NOFILE, &srl);
   return 0;
}
]])],ac_cv_rlimits=yes,ac_cv_rlimits=no)])
test $ac_cv_rlimits = yes && AC_DEFINE(HAVE_RLIMITS, 1, setrlimit/getrlimit is available)

dnl at least uclibc defines _POSIX_ADVISORY_INFO without *any* of the required
dnl functionality actually being present. ugh.
AC_CACHE_CHECK(for posix_madvise, ac_cv_posix_madvise, [AC_LINK_IFELSE([AC_LANG_SOURCE([
#include <sys/mman.h>
int main (void)
{
   int res = posix_madvise ((void *)0, (size_t)0, POSIX_MADV_NORMAL);
   int a = POSIX_MADV_SEQUENTIAL;
   int b = POSIX_MADV_RANDOM;
   int c = POSIX_MADV_WILLNEED;
   int d = POSIX_MADV_DONTNEED;
   return 0;
}
])],ac_cv_posix_madvise=yes,ac_cv_posix_madvise=no)])
test $ac_cv_posix_madvise = yes && AC_DEFINE(HAVE_POSIX_MADVISE, 1, posix_madvise(2) is available)

AC_CACHE_CHECK(for posix_fadvise, ac_cv_posix_fadvise, [AC_LINK_IFELSE([AC_LANG_SOURCE([
#define _XOPEN_SOURCE 600
#include <fcntl.h>
int main (void)
{
   int res = posix_fadvise ((int)0, (off_t)0, (off_t)0, POSIX_FADV_NORMAL);
   int a = POSIX_FADV_SEQUENTIAL;
   int b = POSIX_FADV_NOREUSE;
   int c = POSIX_FADV_RANDOM;
   int d = POSIX_FADV_WILLNEED;
   int e = POSIX_FADV_DONTNEED;
   return 0;
}
])],ac_cv_posix_fadvise=yes,ac_cv_posix_fadvise=no)])
test $ac_cv_posix_fadvise = yes && AC_DEFINE(HAVE_POSIX_FADVISE, 1, posix_fadvise(2) is available)

dnl lots of linux specifics
AC_CHECK_HEADERS([linux/fs.h linux/fiemap.h])

dnl glibc major/minor macros
AC_CHECK_HEADERS([sys/sysmacros.h])

AC_CACHE_CHECK([for splice, vmsplice and tee], ac_cv_linux_splice, [AC_LINK_IFELSE([AC_LANG_SOURCE([
#include <fcntl.h>
int main (void)
{
   ssize_t res;
   res = splice ((int)0, (loff_t)0, (int)0, (loff_t *)0, (size_t)0, SPLICE_F_MOVE | SPLICE_F_NONBLOCK | SPLICE_F_MORE);
   res = tee ((int)0, (int)0, (size_t)0, SPLICE_F_NONBLOCK);
   res = vmsplice ((int)0, (struct iovec *)0, 0, SPLICE_F_NONBLOCK | SPLICE_F_GIFT);
   return 0;
}
])],ac_cv_linux_splice=yes,ac_cv_linux_splice=no)])
test $ac_cv_linux_splice = yes && AC_DEFINE(HAVE_LINUX_SPLICE, 1, splice/vmsplice/tee(2) are available)

AC_CACHE_CHECK(for pipe2, ac_cv_pipe2, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
#include <fcntl.h>
#include <unistd.h>
int res;
int main (void)
{
   res = pipe2 (0, 0);
   return 0;
}
]])],ac_cv_pipe2=yes,ac_cv_pipe2=no)])
test $ac_cv_pipe2 = yes && AC_DEFINE(HAVE_PIPE2, 1, pipe2(2) is available)

AC_CACHE_CHECK(for eventfd, ac_cv_eventfd, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
#include <sys/eventfd.h>
int res;
int main (void)
{
   res = eventfd (1, EFD_CLOEXEC | EFD_NONBLOCK);
   return 0;
}
]])],ac_cv_eventfd=yes,ac_cv_eventfd=no)])
test $ac_cv_eventfd = yes && AC_DEFINE(HAVE_EVENTFD, 1, eventfd(2) is available)

AC_CACHE_CHECK(for timerfd, ac_cv_timerfd, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
#include <sys/timerfd.h>
int res;
int main (void)
{
   struct itimerspec its;
   res = timerfd_create (CLOCK_REALTIME, TFD_CLOEXEC | TFD_NONBLOCK);
   res = timerfd_settime (res, TFD_TIMER_ABSTIME /*| TFD_TIMER_CANCEL_ON_SET*/, &its, 0);
   res = timerfd_gettime (res, &its);
   return 0;
}
]])],ac_cv_timerfd=yes,ac_cv_timerfd=no)])
test $ac_cv_timerfd = yes && AC_DEFINE(HAVE_TIMERFD, 1, timerfd_*(2) are available)

AC_CACHE_CHECK(for copy_file_range, ac_cv_copy_file_range, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
#include <unistd.h>
#include <sys/syscall.h>
/*#include <linux/copy.h>*/
int res;
int main (void)
{
   /*res = syscall (SYS_copy_file_range, 0, 0, 0, 0, 0, COPY_FR_REFLINK | COPY_FR_DEDUP | COPY_FR_COPY);*/
   res = syscall (SYS_copy_file_range, 0, 0, 0, 0, 0, 0);
   return 0;
}
]])],ac_cv_copy_file_range=yes,ac_cv_copy_file_range=no)])
test $ac_cv_copy_file_range = yes && AC_DEFINE(HAVE_COPY_FILE_RANGE, 1, copy_file_range(2) is available)

AC_CACHE_CHECK(for st_xtimensec, ac_cv_xtimensec, [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"

int res;
int main (void)
{
   return PL_statcache.st_atimensec
        + PL_statcache.st_mtimensec
        + PL_statcache.st_ctimensec;
   return 0;
}
]])],ac_cv_xtimensec=yes,ac_cv_xtimensec=no)])
test $ac_cv_xtimensec = yes && AC_DEFINE(HAVE_ST_XTIMENSEC, 1, stat nanosecond access by st_xtimensec)

AC_CACHE_CHECK(for st_xtimespec, ac_cv_xtimespec, [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"

int res;
int main (void)
{
   return PL_statcache.st_atim.tv_nsec
        + PL_statcache.st_mtim.tv_nsec
        + PL_statcache.st_ctim.tv_nsec;
}
]])],ac_cv_xtimespec=yes,ac_cv_xtimespec=no)])
test $ac_cv_xtimespec = yes && AC_DEFINE(HAVE_ST_XTIMESPEC, 1, stat nanosecond access by st_xtimespec)

# apparently, True64 uses st_u[amc]time, aix uses at_[amc]time_n and apple uses st_[amc,birth]timespec?

AC_OUTPUT

Revision:	1.8
Committed:	Tue Aug 14 11:44:52 2018 UTC (5 years, 9 months ago) by root
Branch:	MAIN
Changes since 1.7:	+3 -0 lines
Log Message:	* empty log message *
#	Content
1	AC_INIT
2	AC_CONFIG_SRCDIR([libeio/eio.h])
3	AC_CONFIG_HEADERS([config.h])
4
5	AC_PREREQ(2.60)
6	AC_USE_SYSTEM_EXTENSIONS
7
8	AC_PROG_CC
9
10	m4_include([libeio/libeio.m4])
11
12	# for these to work, you need to run autoheader in IO::AIO, not libeio :(
13
14	AC_CACHE_CHECK(for set/getrlimit, ac_cv_rlimits, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
15	#include <sys/time.h>
16	#include <sys/resource.h>
17	int res;
18	int main (void)
19	{
20	struct rlimit srl;
21	srl.rlim_cur = srl.rlim_max = RLIM_INFINITY;
22	res = getrlimit (RLIMIT_NOFILE, &srl);
23	res = setrlimit (RLIMIT_NOFILE, &srl);
24	return 0;
25	}
26	]])],ac_cv_rlimits=yes,ac_cv_rlimits=no)])
27	test $ac_cv_rlimits = yes && AC_DEFINE(HAVE_RLIMITS, 1, setrlimit/getrlimit is available)
28
29	dnl at least uclibc defines _POSIX_ADVISORY_INFO without any of the required
30	dnl functionality actually being present. ugh.
31	AC_CACHE_CHECK(for posix_madvise, ac_cv_posix_madvise, [AC_LINK_IFELSE([AC_LANG_SOURCE([
32	#include <sys/mman.h>
33	int main (void)
34	{
35	int res = posix_madvise ((void *)0, (size_t)0, POSIX_MADV_NORMAL);
36	int a = POSIX_MADV_SEQUENTIAL;
37	int b = POSIX_MADV_RANDOM;
38	int c = POSIX_MADV_WILLNEED;
39	int d = POSIX_MADV_DONTNEED;
40	return 0;
41	}
42	])],ac_cv_posix_madvise=yes,ac_cv_posix_madvise=no)])
43	test $ac_cv_posix_madvise = yes && AC_DEFINE(HAVE_POSIX_MADVISE, 1, posix_madvise(2) is available)
44
45	AC_CACHE_CHECK(for posix_fadvise, ac_cv_posix_fadvise, [AC_LINK_IFELSE([AC_LANG_SOURCE([
46	#define _XOPEN_SOURCE 600
47	#include <fcntl.h>
48	int main (void)
49	{
50	int res = posix_fadvise ((int)0, (off_t)0, (off_t)0, POSIX_FADV_NORMAL);
51	int a = POSIX_FADV_SEQUENTIAL;
52	int b = POSIX_FADV_NOREUSE;
53	int c = POSIX_FADV_RANDOM;
54	int d = POSIX_FADV_WILLNEED;
55	int e = POSIX_FADV_DONTNEED;
56	return 0;
57	}
58	])],ac_cv_posix_fadvise=yes,ac_cv_posix_fadvise=no)])
59	test $ac_cv_posix_fadvise = yes && AC_DEFINE(HAVE_POSIX_FADVISE, 1, posix_fadvise(2) is available)
60
61	dnl lots of linux specifics
62	AC_CHECK_HEADERS([linux/fs.h linux/fiemap.h])
63
64	dnl glibc major/minor macros
65	AC_CHECK_HEADERS([sys/sysmacros.h])
66
67	AC_CACHE_CHECK([for splice, vmsplice and tee], ac_cv_linux_splice, [AC_LINK_IFELSE([AC_LANG_SOURCE([
68	#include <fcntl.h>
69	int main (void)
70	{
71	ssize_t res;
72	res = splice ((int)0, (loff_t)0, (int)0, (loff_t *)0, (size_t)0, SPLICE_F_MOVE \| SPLICE_F_NONBLOCK \| SPLICE_F_MORE);
73	res = tee ((int)0, (int)0, (size_t)0, SPLICE_F_NONBLOCK);
74	res = vmsplice ((int)0, (struct iovec *)0, 0, SPLICE_F_NONBLOCK \| SPLICE_F_GIFT);
75	return 0;
76	}
77	])],ac_cv_linux_splice=yes,ac_cv_linux_splice=no)])
78	test $ac_cv_linux_splice = yes && AC_DEFINE(HAVE_LINUX_SPLICE, 1, splice/vmsplice/tee(2) are available)
79
80	AC_CACHE_CHECK(for pipe2, ac_cv_pipe2, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
81	#include <fcntl.h>
82	#include <unistd.h>
83	int res;
84	int main (void)
85	{
86	res = pipe2 (0, 0);
87	return 0;
88	}
89	]])],ac_cv_pipe2=yes,ac_cv_pipe2=no)])
90	test $ac_cv_pipe2 = yes && AC_DEFINE(HAVE_PIPE2, 1, pipe2(2) is available)
91
92	AC_CACHE_CHECK(for eventfd, ac_cv_eventfd, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
93	#include <sys/eventfd.h>
94	int res;
95	int main (void)
96	{
97	res = eventfd (1, EFD_CLOEXEC \| EFD_NONBLOCK);
98	return 0;
99	}
100	]])],ac_cv_eventfd=yes,ac_cv_eventfd=no)])
101	test $ac_cv_eventfd = yes && AC_DEFINE(HAVE_EVENTFD, 1, eventfd(2) is available)
102
103	AC_CACHE_CHECK(for timerfd, ac_cv_timerfd, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
104	#include <sys/timerfd.h>
105	int res;
106	int main (void)
107	{
108	struct itimerspec its;
109	res = timerfd_create (CLOCK_REALTIME, TFD_CLOEXEC \| TFD_NONBLOCK);
110	res = timerfd_settime (res, TFD_TIMER_ABSTIME /\| TFD_TIMER_CANCEL_ON_SET/, &its, 0);
111	res = timerfd_gettime (res, &its);
112	return 0;
113	}
114	]])],ac_cv_timerfd=yes,ac_cv_timerfd=no)])
115	test $ac_cv_timerfd = yes && AC_DEFINE(HAVE_TIMERFD, 1, timerfd_*(2) are available)
116
117	AC_CACHE_CHECK(for copy_file_range, ac_cv_copy_file_range, [AC_LINK_IFELSE([AC_LANG_SOURCE([[
118	#include <unistd.h>
119	#include <sys/syscall.h>
120	/#include <linux/copy.h>/
121	int res;
122	int main (void)
123	{
124	/res = syscall (SYS_copy_file_range, 0, 0, 0, 0, 0, COPY_FR_REFLINK \| COPY_FR_DEDUP \| COPY_FR_COPY);/
125	res = syscall (SYS_copy_file_range, 0, 0, 0, 0, 0, 0);
126	return 0;
127	}
128	]])],ac_cv_copy_file_range=yes,ac_cv_copy_file_range=no)])
129	test $ac_cv_copy_file_range = yes && AC_DEFINE(HAVE_COPY_FILE_RANGE, 1, copy_file_range(2) is available)
130
131	AC_CACHE_CHECK(for st_xtimensec, ac_cv_xtimensec, [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
132	#include "EXTERN.h"
133	#include "perl.h"
134	#include "XSUB.h"
135
136	int res;
137	int main (void)
138	{
139	return PL_statcache.st_atimensec
140	+ PL_statcache.st_mtimensec
141	+ PL_statcache.st_ctimensec;
142	return 0;
143	}
144	]])],ac_cv_xtimensec=yes,ac_cv_xtimensec=no)])
145	test $ac_cv_xtimensec = yes && AC_DEFINE(HAVE_ST_XTIMENSEC, 1, stat nanosecond access by st_xtimensec)
146
147	AC_CACHE_CHECK(for st_xtimespec, ac_cv_xtimespec, [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
148	#include "EXTERN.h"
149	#include "perl.h"
150	#include "XSUB.h"
151
152	int res;
153	int main (void)
154	{
155	return PL_statcache.st_atim.tv_nsec
156	+ PL_statcache.st_mtim.tv_nsec
157	+ PL_statcache.st_ctim.tv_nsec;
158	}
159	]])],ac_cv_xtimespec=yes,ac_cv_xtimespec=no)])
160	test $ac_cv_xtimespec = yes && AC_DEFINE(HAVE_ST_XTIMESPEC, 1, stat nanosecond access by st_xtimespec)
161
162	# apparently, True64 uses st_u[amc]time, aix uses at_[amc]time_n and apple uses st_[amc,birth]timespec?
163
164	AC_OUTPUT
165