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AC_INIT |
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AC_CONFIG_SRCDIR([libeio/eio.h]) |
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AC_CONFIG_HEADERS([config.h]) |
4 |
|
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AC_PREREQ(2.60) |
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AC_USE_SYSTEM_EXTENSIONS |
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|
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AC_PROG_CC |
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|
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m4_include([libeio/libeio.m4]) |
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|
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# for these to work, you need to run autoheader in IO::AIO, not libeio :( |
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|
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AC_CACHE_CHECK(for set/getrlimit, ac_cv_rlimits, [AC_LINK_IFELSE([AC_LANG_SOURCE([[ |
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#include <sys/time.h> |
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#include <sys/resource.h> |
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int res; |
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int main (void) |
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{ |
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struct rlimit srl; |
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srl.rlim_cur = srl.rlim_max = RLIM_INFINITY; |
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res = getrlimit (RLIMIT_NOFILE, &srl); |
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res = setrlimit (RLIMIT_NOFILE, &srl); |
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return 0; |
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} |
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]])],ac_cv_rlimits=yes,ac_cv_rlimits=no)]) |
27 |
test $ac_cv_rlimits = yes && AC_DEFINE(HAVE_RLIMITS, 1, setrlimit/getrlimit is available) |
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|
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dnl at least uclibc defines _POSIX_ADVISORY_INFO without *any* of the required |
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dnl functionality actually being present. ugh. |
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AC_CACHE_CHECK(for posix_madvise, ac_cv_posix_madvise, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
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#include <sys/mman.h> |
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int main (void) |
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{ |
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int res = posix_madvise ((void *)0, (size_t)0, POSIX_MADV_NORMAL); |
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int a = POSIX_MADV_SEQUENTIAL; |
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int b = POSIX_MADV_RANDOM; |
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int c = POSIX_MADV_WILLNEED; |
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int d = POSIX_MADV_DONTNEED; |
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return 0; |
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} |
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])],ac_cv_posix_madvise=yes,ac_cv_posix_madvise=no)]) |
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test $ac_cv_posix_madvise = yes && AC_DEFINE(HAVE_POSIX_MADVISE, 1, posix_madvise(2) is available) |
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|
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AC_CACHE_CHECK(for posix_fadvise, ac_cv_posix_fadvise, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
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#define _XOPEN_SOURCE 600 |
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#include <fcntl.h> |
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int main (void) |
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{ |
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int res = posix_fadvise ((int)0, (off_t)0, (off_t)0, POSIX_FADV_NORMAL); |
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int a = POSIX_FADV_SEQUENTIAL; |
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int b = POSIX_FADV_NOREUSE; |
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int c = POSIX_FADV_RANDOM; |
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int d = POSIX_FADV_WILLNEED; |
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int e = POSIX_FADV_DONTNEED; |
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return 0; |
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} |
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])],ac_cv_posix_fadvise=yes,ac_cv_posix_fadvise=no)]) |
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test $ac_cv_posix_fadvise = yes && AC_DEFINE(HAVE_POSIX_FADVISE, 1, posix_fadvise(2) is available) |
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|
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dnl lots of linux specifics |
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AC_CHECK_HEADERS([linux/fs.h linux/fiemap.h]) |
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|
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dnl glibc major/minor macros |
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AC_CHECK_HEADERS([sys/sysmacros.h]) |
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|
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AC_CACHE_CHECK([for splice, vmsplice and tee], ac_cv_linux_splice, [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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ssize_t res; |
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res = splice ((int)0, (loff_t)0, (int)0, (loff_t *)0, (size_t)0, SPLICE_F_MOVE | SPLICE_F_NONBLOCK | SPLICE_F_MORE); |
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res = tee ((int)0, (int)0, (size_t)0, SPLICE_F_NONBLOCK); |
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res = vmsplice ((int)0, (struct iovec *)0, 0, SPLICE_F_NONBLOCK | SPLICE_F_GIFT); |
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return 0; |
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} |
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])],ac_cv_linux_splice=yes,ac_cv_linux_splice=no)]) |
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test $ac_cv_linux_splice = yes && AC_DEFINE(HAVE_LINUX_SPLICE, 1, splice/vmsplice/tee(2) are available) |
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|
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AC_CACHE_CHECK(for pipe2, ac_cv_pipe2, [AC_LINK_IFELSE([AC_LANG_SOURCE([[ |
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#include <fcntl.h> |
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#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 = pipe2 (0, 0); |
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return 0; |
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} |
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]])],ac_cv_pipe2=yes,ac_cv_pipe2=no)]) |
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test $ac_cv_pipe2 = yes && AC_DEFINE(HAVE_PIPE2, 1, pipe2(2) is available) |
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|
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AC_CACHE_CHECK(for eventfd, ac_cv_eventfd, [AC_LINK_IFELSE([AC_LANG_SOURCE([[ |
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#include <sys/eventfd.h> |
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int res; |
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int main (void) |
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{ |
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res = eventfd (1, EFD_CLOEXEC | EFD_NONBLOCK); |
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return 0; |
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} |
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]])],ac_cv_eventfd=yes,ac_cv_eventfd=no)]) |
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test $ac_cv_eventfd = yes && AC_DEFINE(HAVE_EVENTFD, 1, eventfd(2) is available) |
102 |
|
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AC_CACHE_CHECK(for timerfd, ac_cv_timerfd, [AC_LINK_IFELSE([AC_LANG_SOURCE([[ |
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#include <sys/timerfd.h> |
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int res; |
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int main (void) |
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{ |
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struct itimerspec its; |
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res = timerfd_create (CLOCK_REALTIME, TFD_CLOEXEC | TFD_NONBLOCK); |
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res = timerfd_settime (res, TFD_TIMER_ABSTIME /*| TFD_TIMER_CANCEL_ON_SET*/, &its, 0); |
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res = timerfd_gettime (res, &its); |
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return 0; |
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} |
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]])],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> |
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#include <sys/syscall.h> |
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/*#include <linux/copy.h>*/ |
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int res; |
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int main (void) |
123 |
{ |
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/*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 |
|
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AC_CACHE_CHECK(for st_xtimensec, ac_cv_xtimensec, [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ |
132 |
#include "EXTERN.h" |
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#include "perl.h" |
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#include "XSUB.h" |
135 |
|
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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 |
|