--- Makefile.orig	2020-02-19 20:41:12 UTC
+++ Makefile
@@ -32,8 +32,7 @@ uninstall:
 	rm -f $(DESTDIR)$(PREFIX)/bin/$(BIN) $(DESTDIR)$(MANDIR)/$(MAN)
 
 # Stock FLAGS
-SACCCFLAGS = -D_DEFAULT_SOURCE -D_XOPEN_SOURCE=700 -D_BSD_SOURCE -D_GNU_SOURCE \
-             $(CFLAGS)
+SACCCFLAGS = $(CFLAGS)
 
 .c.o:
 	$(CC) $(SACCCFLAGS) -c $<