Build Unix-friendly versions directly from library.
diff --git a/unix/mkfile.mk b/unix/mkfile.mk
new file mode 100644
index 0000000..6d650fe
--- /dev/null
+++ b/unix/mkfile.mk
@@ -0,0 +1,39 @@
+MAKEALL=`{cd ../make; ls Make.*}
+TARG=\
+ $MAKEALL\
+ NOTICE\
+ README\
+ Makefile\
+ mk.1\
+ mk.h\
+ fns.h\
+ `{ls -p $PLAN9/src/cmd/mk/*.c}\
+
+all:V: $TARG
+
+%: $PLAN9/include/%
+ cp $prereq $target
+
+%: $PLAN9/src/cmd/mk/%
+ cp $prereq $target
+
+%: $PLAN9/man/man1/%
+ cp $prereq $target
+
+%: $PLAN9/man/man3/%
+ cp $prereq $target
+
+%: $PLAN9/man/man7/%
+ cp $prereq $target
+
+%: ../make/%
+ cp $prereq $target
+
+Makefile:D: ../make/Makefile.TOP ../make/Makefile.mk ../make/Makefile.CMD ../make/Makefile.BOT
+ cat $prereq >$target
+
+README: ../README
+ cp $prereq $target
+
+NOTICE: ../NOTICE.mk
+ cp $prereq $target
