--- calendar-2.03.2/Makefile.in.old 2013-09-14 16:15:43.760253519 +0100
+++ calendar-2.03.2/Makefile.in 2013-09-14 16:16:03.233279962 +0100
@@ -86,7 +86,7 @@
CAMLIBS = $(addprefix -I , $(DIRS))
-CAMLFLAGS= $(CAMLIBS)
+CAMLFLAGS= -g $(CAMLIBS)
BYTEFLAGS= $(CAMLFLAGS)
LINK_OPTFLAGS = $(CAMLFLAGS) -noassert
OPTFLAGS = $(LINK_OPTFLAGS) -for-pack CalendarLib