Index: chicken.makefile
==================================================================
--- chicken.makefile
+++ chicken.makefile
@@ -51,10 +51,11 @@
 	wget -c -O tgz-$(USER)/ffcall.tar.gz 'http://www.kiatoa.com/fossils/ffcall/tarball?name=ffcall&uuid=trunk'
 
 $(CHICKEN_PREFIX)/bin/pg_config : tgz-$(USER)/postgresql-9.6.4.tar.gz
 	mkdir -p build-$(USER)/
 	tar xfz tgz-$(USER)/postgresql-9.6.4.tar.gz -C build-$(USER)
+	if [[ -e $(CHICKEN_PREFIX)/bin/pg_config ]];then touch $(CHICKEN_PREFIX)/bin/pg_config;fi
 	cd build-$(USER)/postgresql-9.6.4; ./configure --prefix=$(CHICKEN_PREFIX) --with-openssl; make; make install
 
 build-$(USER)/sqlite-autoconf-3090200/configure : tgz-$(USER)/sqlite-autoconf-3090200.tar.gz
 	mkdir -p build-$(USER);
 	cd build-$(USER); tar xf ../tgz-$(USER)/sqlite-autoconf-3090200.tar.gz
@@ -66,10 +67,11 @@
 	cd tgz-$(USER)/nanomsg-1.0.0/build-$(USER); make; make install
 
 $(CHICKEN_PREFIX)/chicken-4.13.0/LICENSE : tgz-$(USER)/chicken-4.13.0.tar.gz
 	mkdir -p build-$(USER)/eggs-installed
 	cd build-$(USER);tar xf ../tgz-$(USER)/chicken-4.13.0.tar.gz
+	if [[ -e $(CHICKEN_PREFIX)/chicken-4.13.0/LICENSE ]];then touch $(CHICKEN_PREFIX)/chicken-4.13.0/LICENSE;fi
 
 tgz-$(USER)/opensrc.fossil :
 	cd tgz-$(USER); fossil clone http://www.kiatoa.com/fossils/opensrc opensrc.fossil
 	mkdir tgz-$(USER)/opensrc
 	cd tgz-$(USER)/opensrc; fossil open --nested ../opensrc.fossil; fossil up; fossil uv sync