--- Makefile.in.orig	2011-07-01 16:58:19.000000000 +0200
+++ Makefile.in	2011-07-01 16:58:47.000000000 +0200
@@ -1014,7 +1014,7 @@ install-exec-hook:
 	(cd $(DESTDIR)$(bindir); \
 	$(LN) gawk$(EXEEXT) gawk-$(VERSION)$(EXEEXT) 2>/dev/null ; \
 	$(LN) pgawk$(EXEEXT) pgawk-$(VERSION)$(EXEEXT) 2>/dev/null ; \
-	if [ ! -f awk ]; \
+	if ! /usr/bin/which -s awk; \
 	then	$(LN_S) gawk$(EXEEXT) awk; \
 	fi; exit 0)
 
