From 4b5144d7997246d1e5ab7be7daec8bbc2ecd3b89 Mon Sep 17 00:00:00 2001
From: Elimar Riesebieter <riesebie@lxtec.de>
Date: Sun, 10 Feb 2019 08:32:09 +0100
Subject: [PATCH] The AX_PATH_BDB_NO_OPTIONS is broken

for cross compilation and that breaks moc. Pass -P to $ac_cpp.
---
 m4/ax_path_bdb.m4 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/m4/ax_path_bdb.m4 b/m4/ax_path_bdb.m4
index 585218d..461d423 100644
--- a/m4/ax_path_bdb.m4
+++ b/m4/ax_path_bdb.m4
@@ -179,7 +179,7 @@ AX_PATH_BDB_STUFF DB_VERSION_MAJOR,DB_VERSION_MINOR,DB_VERSION_PATCH
       ]])
     ],[
       # Extract version from preprocessor output.
-      HEADER_VERSION=`eval "$ac_cpp conftest.$ac_ext" 2> /dev/null \
+      HEADER_VERSION=`eval "$ac_cpp -P conftest.$ac_ext" 2> /dev/null \
         | grep AX_PATH_BDB_STUFF | sed 's/[[^0-9,]]//g;s/,/./g;1q'`
     ],[])
 
-- 
2.20.1