diff --git a/Makefile b/Makefile
index 5da95c9..2938c76 100755
--- a/Makefile
+++ b/Makefile
@@ -84,6 +84,8 @@ CONFIG_DRVEXT_MODULE = n
 
 export TopDIR ?= $(shell pwd)
 
+MSG="Directory .git does not exist indicating that you downloaded the source as a zip file. Only the 'git clone' method is now supported."
+
 ########### COMMON  #################################
 
 HCI_NAME = usb
@@ -471,7 +473,10 @@ else
 
 export CONFIG_RTL8188EU = m
 
-all: modules
+all: test modules
+
+test:
+	@if [ !  -e  ./.git ] ; then echo $(MSG); exit 1; fi;
 
 modules:
 	$(MAKE) ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) -C $(KSRC) M=$(shell pwd)  modules
diff --git a/README.md b/README.md
index 58fbc94..08581f6 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,22 @@
+IMPORTANT - PLEASE READ:
+
+Beginning on November 4, 2019, I will NO LONGER support people that have downloaded the source
+as a zip file. Using git has much more flexibility. In addition, there is much less liklihood
+that a user will contact me with a problem that is ALREADY fixed.
+
+If your system says that /lib/modules/...../build does not exist, you have not
+installed the kernel headers, you have done it incorrectly, or you are not running
+the kernel for which the headers have been installed. The necessary steps are
+dependent on which distro you are using. Creating a new issue and asking at
+GitHub will not be productive.
+
+Unsolicited E-mail sent to my private address will be ignored!!
+
+If a build fails that previously worked, perform a 'git pull' and retry before
+reporting a problem. As noted, if you had downloaded the source in zip form, then you would
+need to get an entirely new source file. That is why using git, which downloads only the changed
+lines, is required.
+
 rtl8188eu
 =========