--- src/sql/Makefile.am.orig	2013-10-13 10:51:24.000000000 +0200
+++ src/sql/Makefile.am	2013-10-13 21:14:21.000000000 +0200
@@ -1,3 +1,5 @@
+BUILT_SOURCES = parser.h
+AM_YFLAGS = -d
 lib_LTLIBRARIES	=	libmdbsql.la
 libmdbsql_la_SOURCES=	mdbsql.c parser.y lexer.l 
 libmdbsql_la_LDFLAGS = -version-info 2:0:0 -export-symbols-regex '^mdb_sql_'