export dump.h as well.

src/Makefile.am

@@ -83,7 +83,7 @@ nobase_noinst_HEADERS = align.h approx_math.h atomic.h cycle.h error.h inline.h
 		 cooling/none/cooling.h cooling/none/cooling_struct.h \
 	         cooling/const_du/cooling.h cooling/const_du/cooling_struct.h \
                  cooling/const_lambda/cooling.h cooling/const_lambda/cooling_struct.h \
-                 memswap.h
+     memswap.h dump.h
 
 
 # Sources and flags for regular library