fix for OOS build in config.m4. closes gh-55

Author: bigbes

config.m4

@@ -3,7 +3,6 @@ PHP_ARG_WITH(tarantool, for tarantool support,
 [  --with-tarantool	Enable tarantool support])
 
 if test "$PHP_TARANTOOL" != "no"; then
-    PHP_ADD_INCLUDE([$ext_builddir/src/third_party])
     PHP_NEW_EXTENSION(tarantool,        \
         src/tarantool.c                 \
         src/tarantool_msgpack.c         \
@@ -16,4 +15,6 @@ if test "$PHP_TARANTOOL" != "no"; then
         src/third_party/base64.c        \
         src/third_party/PMurHash.c      \
         , $ext_shared)
+    PHP_ADD_BUILD_DIR([$ext_builddir/src/])
+    PHP_ADD_BUILD_DIR([$ext_builddir/src/third_party])
 fi