Split ragel generated files lists and remove hardcoded rl files lists (#453)

diff --git a/src/Makefile.am b/src/Makefile.am
index e322d56..d3a0cfa 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -25,11 +25,13 @@
 HBNONPCLIBS =
 HBDEPS =
 HBSOURCES =  $(HB_BASE_sources)
+HBSOURCES += $(HB_BASE_RAGEL_GENERATED_sources)
 HBHEADERS = $(HB_BASE_headers)
 HBNODISTHEADERS = $(HB_NODIST_headers)
 
 if HAVE_OT
 HBSOURCES += $(HB_OT_sources)
+HBSOURCES += $(HB_OT_RAGEL_GENERATED_sources)
 HBHEADERS += $(HB_OT_headers)
 endif