1 files changed, 13 insertions, 0 deletions
diff --git a/m4/off_t_max.m4 b/m4/off_t_max.m4
new file mode 100644
index 0000000..4ec6d08
--- /dev/null
+++ b/m4/off_t_max.m4
@@ -0,0 +1,13 @@
+AC_DEFUN([DOVECOT_OFF_T_MAX], [
+  dnl * Do we have OFF_T_MAX?
+  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+    #include <limits.h>
+    #include <sys/types.h>
+  ]], [[
+    off_t i = OFF_T_MAX;
+  ]])],[
+    :
+  ],[
+    AC_DEFINE_UNQUOTED(OFF_T_MAX, $offt_max, [Maximum value of off_t])
+  ])
+])