From 0ed392ec025a902207f802c6957ec927abbcd36d Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Wed, 8 Jan 2020 18:52:39 -0700
Subject: Add support for IORING_OP_OPENAT2

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 configure | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

(limited to 'configure')

diff --git a/configure b/configure
index 7393cb4..54cf5f6 100755
--- a/configure
+++ b/configure
@@ -209,6 +209,29 @@ if compile_prog "" "" "__kernel_timespec"; then
 fi
 print_config "__kernel_timespec" "$__kernel_timespec"
 
+##########################################
+# check for open_how
+open_how="no"
+cat > $TMPC << EOF
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <string.h>
+int main(int argc, char **argv)
+{
+  struct open_how how;
+  how.flags = 0;
+  how.mode = 0;
+  how.resolve = 0;
+  return 0;
+}
+EOF
+if compile_prog "" "" "open_how"; then
+  open_how="yes"
+fi
+print_config "open_how" "$open_how"
+
+
 #############################################################################
 
 if test "$__kernel_rwf_t" = "yes"; then
@@ -217,5 +240,8 @@ fi
 if test "$__kernel_timespec" = "yes"; then
   output_sym "CONFIG_HAVE_KERNEL_TIMESPEC"
 fi
+if test "$open_how" = "yes"; then
+  output_sym "CONFIG_HAVE_OPEN_HOW"
+fi
 
 echo "CC=$cc" >> $config_host_mak
-- 
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