When calculate value of ldblibdir, it checks whether the directory of
$ldblibdir exists. If not, it assigns ldblibdir with ${libdir}/ldb. It is not
suitable for cross compile. Fix it that only re-assign ldblibdir when its value
is empty.

Upstream-Status: Inappropriate [cross compile specific]

Signed-off-by: Kai Kang <kai.kang@windriver.com>
---
 src/external/libldb.m4 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/external/libldb.m4 b/src/external/libldb.m4
index c400add..5e5f06d 100644
--- a/src/external/libldb.m4
+++ b/src/external/libldb.m4
@@ -19,7 +19,7 @@ if test x"$with_ldb_lib_dir" != x; then
     ldblibdir=$with_ldb_lib_dir
 else
     ldblibdir="`$PKG_CONFIG --variable=modulesdir ldb`"
-    if ! test -d $ldblibdir; then
+    if test -z $ldblibdir; then
         ldblibdir="${libdir}/ldb"
     fi
 fi