updated for version 7.3.122
Problem:    Having auto/config.mk in the repository causes problems.
Solution:   Remove auto/config.mk from the distribution.  In the toplevel
            Makefile copy it from the "dist" file.
diff --git a/Makefile b/Makefile
index bf2b309..a48112e 100644
--- a/Makefile
+++ b/Makefile
@@ -23,6 +23,9 @@
 # has run can result in compiling with $(CC) empty.
 
 first:
+	@if test ! -f src/auto/config.mk; then \
+		cp src/config.mk.dist src/auto/config.mk; \
+	fi
 	@echo "Starting make in the src directory."
 	@echo "If there are problems, cd to the src directory and run make there"
 	cd src && $(MAKE) $@
@@ -30,6 +33,9 @@
 # Some make programs use the last target for the $@ default; put the other
 # targets separately to always let $@ expand to "first" by default.
 all install uninstall tools config configure reconfig proto depend lint tags types test testclean clean distclean:
+	@if test ! -f src/auto/config.mk; then \
+		cp src/config.mk.dist src/auto/config.mk; \
+	fi
 	@echo "Starting make in the src directory."
 	@echo "If there are problems, cd to the src directory and run make there"
 	cd src && $(MAKE) $@