Make automatic prototype generation work with more interfaces.
diff --git a/Makefile b/Makefile
index 7e95701..f24e8f3 100644
--- a/Makefile
+++ b/Makefile
@@ -86,7 +86,8 @@
# - With these features: "make proto" (requires cproto and Motif installed;
# ignore warnings for missing include files, fix problems for syntax errors).
# - With these features: "make depend" (works best with gcc).
-# - "make lint" and check the output (ignore GTK warnings).
+# - If you have a lint program: "make lint" and check the output (ignore GTK
+# warnings).
# - Enable the efence library in "src/Makefile" and run "make test". Disable
# Python and Ruby to avoid trouble with threads (efence is not threadsafe).
# - Check for missing entries in runtime/makemenu.vim (with checkmenu script).