add configure check for AIX style sub-second resolution support

diff --git a/source3/configure.in b/source3/configure.in
index 4ce9207a9e46c4af0cc31e1ceca9e2f4b790469b..f44fb9b8c436367cd733defdbca26921f21b7a7d 100644 (file)
--- a/source3/configure.in
+++ b/source3/configure.in
@@ -1395,7 +1395,7 @@ if test x"$samba_cv_stat_hires" = x"yes" ; then
            [whether struct stat has sub-second timestamps])
 fi
 
-AC_CACHE_CHECK([whether struct stat has sub-second timestamps without struct timespec], samba_cv_stat_hires_notimespec,
+AC_CACHE_CHECK([whether struct stat has sub-second timestamps without struct timespec suffixed nsec], samba_cv_stat_hires_notimespec,
     [
        AC_TRY_COMPILE(
            [
@@ -1431,7 +1431,47 @@ if test x"$samba_cv_stat_hires_notimespec" = x"yes" ; then
     AC_DEFINE(HAVE_STAT_ST_ATIMENSEC, 1, [whether struct stat contains st_atimensec])
     AC_DEFINE(HAVE_STAT_ST_CTIMENSEC, 1, [whether struct stat contains st_ctimensec])
     AC_DEFINE(HAVE_STAT_HIRES_TIMESTAMPS, 1,
-           [whether struct stat has sub-second timestamps without struct timespec])
+           [whether struct stat has sub-second timestamps without struct timespec suffixed nsec])
+fi
+
+dnl AIX stype sub-second timestamps:
+AC_CACHE_CHECK([whether struct stat has sub-second timestamps without struct timespec suffixed _n], samba_cv_stat_hires_notimespec_n,
+    [
+       AC_TRY_COMPILE(
+           [
+#if TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+#else
+# if HAVE_SYS_TIME_H
+#  include <sys/time.h>
+# else
+#  include <time.h>
+# endif
+#endif
+#ifdef HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+           ],
+           [
+               struct timespec t;
+               struct stat s = {0};
+               t.tv_sec = s.st_mtime;
+               t.tv_nsec = s.st_mtime_n;
+               t.tv_sec = s.st_ctime;
+               t.tv_nsec = s.st_ctime_n;
+               t.tv_sec = s.st_atime;
+               t.tv_nsec = s.st_atime_n;
+           ],
+           samba_cv_stat_hires_notimespec_n=yes, samba_cv_stat_hires_notimespec_n=no)
+    ])
+
+if test x"$samba_cv_stat_hires_notimespec_n" = x"yes" ; then
+    AC_DEFINE(HAVE_STAT_ST_MTIME_N, 1, [whether struct stat contains st_mtime_n])
+    AC_DEFINE(HAVE_STAT_ST_ATIME_N, 1, [whether struct stat contains st_atime_n])
+    AC_DEFINE(HAVE_STAT_ST_CTIME_N, 1, [whether struct stat contains st_ctime_n])
+    AC_DEFINE(HAVE_STAT_HIRES_TIMESTAMPS, 1,
+           [whether struct stat has sub-second timestamps without struct timespec suffixed _n])
 fi
 
 AC_CACHE_CHECK([whether struct stat has st_birthtimespec], samba_cv_stat_st_birthtimespec,