Comment out the lines that generated by mk1mf.pl include three separate rules

that are equivalent to $(OUT_D). This was what was causing the 'too many rules'
warning under VC++.

INSTALL.W32

@@ -31,9 +31,8 @@ then from the VC++ environment at a prompt do:
 
 nmake -f ms\ntdll.mak
 
-you may get a warning about too many rules but if all is well it should all
-compile and you will have some DLLs and executables in out32dll. If you want
-to try the tests then cd to out32dll and run ..\ms\test
+If all is well it should compile and you will have some DLLs and executables
+in out32dll. If you want to try the tests then cd to out32dll and run ..\ms\test
 
 Troubleshooting.
 

util/mk1mf.pl

@@ -333,6 +333,9 @@ RSAGLUE=$RSAglue
 # BIN_D  - Binary output directory
 # TEST_D - Binary test file output directory
 # LIB_D  - library output directory
+# Note: if you change these point to different directories then uncomment out
+# the lines around the 'NB' comment below.
+# 
 BIN_D=\$(OUT_D)
 TEST_D=\$(OUT_D)
 LIB_D=\$(OUT_D)
@@ -374,12 +377,12 @@ $banner
 
 \$(TMP_D):
 	\$(MKDIR) \$(TMP_D)
-
-\$(BIN_D):
-	\$(MKDIR) \$(BIN_D)
-
-\$(TEST_D):
-	\$(MKDIR) \$(TEST_D)
+# NB: uncomment out these lines if BIN_D, TEST_D and LIB_D are different
+#\$(BIN_D):
+#	\$(MKDIR) \$(BIN_D)
+#
+#\$(TEST_D):
+#	\$(MKDIR) \$(TEST_D)
 
 \$(LIB_D):
 	\$(MKDIR) \$(LIB_D)