Backport blkcnt_t detection/usage.

1 files changed, 67 insertions, 1 deletions

diff --git a/unix/configure b/unix/configure
index 2965f76..7eaf6ed 100755
--- a/unix/configure
+++ b/unix/configure
@@ -13696,7 +13696,8 @@ _ACEOF
 
 #--------------------------------------------------------------------
 #	Some systems (e.g., IRIX 4.0.5) lack some fields in struct stat. But
-#	we might be able to use fstatfs instead.
+#	we might be able to use fstatfs instead. Some systems (OpenBSD?) also
+#	lack blkcnt_t.
 #--------------------------------------------------------------------
 
 echo "$as_me:$LINENO: checking for struct stat.st_blocks" >&5
@@ -13918,6 +13919,71 @@ _ACEOF
 
 fi
 
+echo "$as_me:$LINENO: checking for blkcnt_t" >&5
+echo $ECHO_N "checking for blkcnt_t... $ECHO_C" >&6
+if test "${ac_cv_type_blkcnt_t+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+int
+main ()
+{
+if ((blkcnt_t *) 0)
+  return 0;
+if (sizeof (blkcnt_t))
+  return 0;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_type_blkcnt_t=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_type_blkcnt_t=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_type_blkcnt_t" >&5
+echo "${ECHO_T}$ac_cv_type_blkcnt_t" >&6
+if test $ac_cv_type_blkcnt_t = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_BLKCNT_T 1
+_ACEOF
+
+
+fi
+
 echo "$as_me:$LINENO: checking for fstatfs" >&5
 echo $ECHO_N "checking for fstatfs... $ECHO_C" >&6
 if test "${ac_cv_func_fstatfs+set}" = set; then