--- libconfig-1.6/lib/Makefile.am.1	2016-03-24 09:02:18.115666294 +0300
+++ libconfig-1.6/lib/Makefile.am	2016-03-24 09:03:01.517377249 +0300
@@ -24,6 +24,8 @@
 PARSER_PREFIX = libconfig_yy
 AM_LFLAGS = --header-file=scanner.h --prefix=$(PARSER_PREFIX)
 
+scanner.h: scanner.c
+
 ## Bison
 AM_YFLAGS = -d -p $(PARSER_PREFIX)