Added "-fPIC" to build-flags (Closes: #759830)

since we override CFLAGS completely, we also need to
pass "-fPIC"

debian/rules

@@ -23,8 +23,12 @@ include /usr/share/cdbs/1/rules/utils.mk
 
 DEB_SRCDIR=src
 
-CFLAGS+=$(CPPFLAGS) $(shell pkg-config --cflags lua5.2 pd) -Wno-error=format-security
-LIBS+=$(shell   pkg-config --libs   lua5.2) $(LDFLAGS)
+CFLAGS+=$(CPPFLAGS)				\
+	$(shell pkg-config --cflags lua5.2 pd)	\
+	-fPIC					\
+	-Wno-error=format-security
+LIBS+=$(shell   pkg-config --libs   lua5.2)	\
+	$(LDFLAGS)
 DEB_MAKE_EXTRA_ARGS = CFLAGS="$(CFLAGS)" LIBS="$(LIBS)" $(DEB_MAKE_PARALLEL)
 
 test: