From 6143eb99e3ec8905acb6d309e201150dfd9f518d Mon Sep 17 00:00:00 2001
From: Felipe Zimmerle <fcosta@trustwave.com>
Date: Wed, 10 May 2017 12:50:38 -0300
Subject: [PATCH] Removes LMDB from the default configuration options

---
 build/lmdb.m4 | 25 +++++++++++++++----------
 1 file changed, 15 insertions(+), 10 deletions(-)

diff --git a/build/lmdb.m4 b/build/lmdb.m4
index 8af62746..f413226c 100644
--- a/build/lmdb.m4
+++ b/build/lmdb.m4
@@ -98,16 +98,21 @@ if test -z "${LMDB_LDADD}"; then
         LMDB_FOUND=-1
     fi
 else
-    LMDB_FOUND=1
-    AC_MSG_NOTICE([using LMDB v${LMDB_VERSION}])
-    LMDB_CFLAGS="-DWITH_LMDB ${LMDB_CFLAGS}"
-    LMDB_DISPLAY="${LMDB_LDADD}, ${LMDB_CFLAGS}"
-    AC_SUBST(LMDB_VERSION)
-    AC_SUBST(LMDB_LDADD)
-    AC_SUBST(LMDB_LIBS)
-    AC_SUBST(LMDB_LDFLAGS)
-    AC_SUBST(LMDB_CFLAGS)
-    AC_SUBST(LMDB_DISPLAY)
+    if test -z "${LMDB_MANDATORY}"; then
+        LMDB_FOUND=2
+        AC_MSG_NOTICE([LMDB is disabled by default.])
+    else
+        LMDB_FOUND=1
+        AC_MSG_NOTICE([using LMDB v${LMDB_VERSION}])
+        LMDB_CFLAGS="-DWITH_LMDB ${LMDB_CFLAGS}"
+        LMDB_DISPLAY="${LMDB_LDADD}, ${LMDB_CFLAGS}"
+        AC_SUBST(LMDB_VERSION)
+        AC_SUBST(LMDB_LDADD)
+        AC_SUBST(LMDB_LIBS)
+        AC_SUBST(LMDB_LDFLAGS)
+        AC_SUBST(LMDB_CFLAGS)
+        AC_SUBST(LMDB_DISPLAY)
+    fi
 fi