Make cooling_rates build outside tree

examples/Cooling/CoolingRates/Makefile.am

@@ -15,7 +15,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 # Add the source directory and the non-standard paths to the included library headers to CFLAGS
-AM_CFLAGS = -I$(top_srcdir)/src $(HDF5_CPPFLAGS) $(GSL_INCS) $(FFTW_INCS) $(NUMA_INCS)
+AM_CFLAGS = -I$(top_srcdir)/src -I$(top_builddir)/examples $(HDF5_CPPFLAGS) $(GSL_INCS) $(FFTW_INCS) $(NUMA_INCS)
 
 AM_LDFLAGS = $(HDF5_LDFLAGS) $(HDF5_LIBS) $(FFTW_LIBS) $(NUMA_LIBS) $(TCMALLOC_LIBS) $(JEMALLOC_LIBS) $(TBBMALLOC_LIBS) $(GRACKLE_LIBS) $(GSL_LIBS) $(PROFILER_LIBS)
 
@@ -27,6 +27,6 @@ bin_PROGRAMS = cooling_rates
 
 # Sources
 cooling_rates_SOURCES = cooling_rates.c
-cooling_rates_CFLAGS = $(MYFLAGS) $(AM_CFLAGS)
+cooling_rates_CFLAGS = $(AM_CFLAGS)
 cooling_rates_LDADD =  ../../../src/.libs/libswiftsim.a $(EXTRA_LIBS)