modlibdir=$(libdir)/polypaudio-@PA_MAJORMINOR@
-AM_CFLAGS=-D_GNU_SOURCE -I$(top_srcdir) $(PTHREAD_CFLAGS)
+AM_CFLAGS=-D_GNU_SOURCE -I$(top_srcdir) $(PTHREAD_CFLAGS) $(LIBSAMPLERATE_CFLAGS) $(LIBSNDFILE_CFLAGS)
AM_CFLAGS+=-DDLSEARCHPATH=\"$(modlibdir)\"
AM_CFLAGS+=-DDEFAULT_CONFIG_DIR=\"$(polypconfdir)\"
AM_CFLAGS+=-DPOLYPAUDIO_BINARY=\"$(bindir)/polypaudio\"