--- IO-AIO/configure	2017/06/23 03:23:19	1.18
+++ IO-AIO/configure	2018/08/12 06:10:31	1.24
@@ -2020,7 +2020,7 @@
 
 
 
-ac_config_headers="$ac_config_headers libeio/config.h"
+ac_config_headers="$ac_config_headers config.h"
 
 
 
@@ -4200,6 +4200,108 @@
 $as_echo "#define HAVE_PRCTL_SET_NAME 1" >>confdefs.h
 
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for posix_close" >&5
+$as_echo_n "checking for posix_close... " >&6; }
+if ${ac_cv_posix_close+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <unistd.h>
+int res;
+int main (void)
+{
+   res = posix_close (0, 0); /* we do not need any flags */
+   return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_posix_close=yes
+else
+  ac_cv_posix_close=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_posix_close" >&5
+$as_echo "$ac_cv_posix_close" >&6; }
+test $ac_cv_posix_close = yes &&
+$as_echo "#define HAVE_POSIX_CLOSE 1" >>confdefs.h
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for renameat2" >&5
+$as_echo_n "checking for renameat2... " >&6; }
+if ${ac_cv_renameat2+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#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;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_renameat2=yes
+else
+  ac_cv_renameat2=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_renameat2" >&5
+$as_echo "$ac_cv_renameat2" >&6; }
+test $ac_cv_renameat2 = yes &&
+$as_echo "#define HAVE_RENAMEAT2 1" >>confdefs.h
+
+
+
+
+# for these to work, you need to run autoheader in IO::AIO, not libeio :(
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for set/getrlimit" >&5
+$as_echo_n "checking for set/getrlimit... " >&6; }
+if ${ac_cv_rlimits+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#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;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_rlimits=yes
+else
+  ac_cv_rlimits=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_rlimits" >&5
+$as_echo "$ac_cv_rlimits" >&6; }
+test $ac_cv_rlimits = yes &&
+$as_echo "#define HAVE_RLIMITS 1" >>confdefs.h
+
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for posix_madvise" >&5
 $as_echo_n "checking for posix_madvise... " >&6; }
@@ -4350,9 +4452,74 @@
 $as_echo "#define HAVE_PIPE2 1" >>confdefs.h
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for renameat2" >&5
-$as_echo_n "checking for renameat2... " >&6; }
-if ${ac_cv_renameat2+:} false; then :
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for eventfd" >&5
+$as_echo_n "checking for eventfd... " >&6; }
+if ${ac_cv_eventfd+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <sys/eventfd.h>
+int res;
+int main (void)
+{
+   res = eventfd (1, EFD_CLOEXEC | EFD_NONBLOCK);
+   return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_eventfd=yes
+else
+  ac_cv_eventfd=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_eventfd" >&5
+$as_echo "$ac_cv_eventfd" >&6; }
+test $ac_cv_eventfd = yes &&
+$as_echo "#define HAVE_EVENTFD 1" >>confdefs.h
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for timerfd" >&5
+$as_echo_n "checking for timerfd... " >&6; }
+if ${ac_cv_timerfd+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#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;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_timerfd=yes
+else
+  ac_cv_timerfd=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_timerfd" >&5
+$as_echo "$ac_cv_timerfd" >&6; }
+test $ac_cv_timerfd = yes &&
+$as_echo "#define HAVE_TIMERFD 1" >>confdefs.h
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for copy_file_range" >&5
+$as_echo_n "checking for copy_file_range... " >&6; }
+if ${ac_cv_copy_file_range+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -4360,30 +4527,100 @@
 
 #include <unistd.h>
 #include <sys/syscall.h>
-#include <linux/fs.h>
+/*#include <linux/copy.h>*/
 int res;
 int main (void)
 {
-   res = syscall (SYS_renameat2, 0, 0, 0, 0, RENAME_EXCHANGE | RENAME_NOREPLACE);
+   /*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;
 }
 
 _ACEOF
 if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_renameat2=yes
+  ac_cv_copy_file_range=yes
 else
-  ac_cv_renameat2=no
+  ac_cv_copy_file_range=no
 fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_renameat2" >&5
-$as_echo "$ac_cv_renameat2" >&6; }
-test $ac_cv_renameat2 = yes &&
-$as_echo "#define HAVE_RENAMEAT2 1" >>confdefs.h
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_copy_file_range" >&5
+$as_echo "$ac_cv_copy_file_range" >&6; }
+test $ac_cv_copy_file_range = yes &&
+$as_echo "#define HAVE_COPY_FILE_RANGE 1" >>confdefs.h
 
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for st_xtimensec" >&5
+$as_echo_n "checking for st_xtimensec... " >&6; }
+if ${ac_cv_xtimensec+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
 
+#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;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_xtimensec=yes
+else
+  ac_cv_xtimensec=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_xtimensec" >&5
+$as_echo "$ac_cv_xtimensec" >&6; }
+test $ac_cv_xtimensec = yes &&
+$as_echo "#define HAVE_ST_XTIMENSEC 1" >>confdefs.h
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for st_xtimespec" >&5
+$as_echo_n "checking for st_xtimespec... " >&6; }
+if ${ac_cv_xtimespec+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#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;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_xtimespec=yes
+else
+  ac_cv_xtimespec=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_xtimespec" >&5
+$as_echo "$ac_cv_xtimespec" >&6; }
+test $ac_cv_xtimespec = yes &&
+$as_echo "#define HAVE_ST_XTIMESPEC 1" >>confdefs.h
+
+
+# apparently, True64 uses st_u[amc]time, aix uses at_[amc]time_n and apple uses st_[amc,birth]timespec?
 
 cat >confcache <<\_ACEOF
 # This file is a shell script that caches the results of configure
@@ -5057,7 +5294,7 @@
 for ac_config_target in $ac_config_targets
 do
   case $ac_config_target in
-    "libeio/config.h") CONFIG_HEADERS="$CONFIG_HEADERS libeio/config.h" ;;
+    "config.h") CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;;
 
   *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
   esac
@@ -5402,3 +5639,4 @@
 $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
 fi
 
+