From 3337c9d51a8fd59ba1a5b94315c816fdf97fd0ae Mon Sep 17 00:00:00 2001
From: Cary R <cygcary@yahoo.com>
Date: Fri, 22 May 2009 19:08:22 -0700
Subject: [PATCH] Make ivl warn that it does not support `ifndef or `elsif

We added support for these two directives some time ago,
but ivl was never updated to warn that it did not support
them and you needed to use ivlpp.
---
 lexor.lex | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/lexor.lex b/lexor.lex
index b70936c73..ad0df6906 100644
--- a/lexor.lex
+++ b/lexor.lex
@@ -517,6 +517,12 @@ S [afpnumkKMGT]
 	   << endl;
   }
 
+^{W}?`elsif{W}?.* {
+      cerr << yylloc.text << ":" << yylloc.first_line <<
+	    ": warning: `elsif not supported. Use an external preprocessor."
+	   << endl;
+  }
+
 ^{W}?`endif{W}?.* {
       cerr << yylloc.text << ":" << yylloc.first_line <<
 	    ": warning: `endif not supported. Use an external preprocessor."
@@ -529,6 +535,12 @@ S [afpnumkKMGT]
 	   << endl;
   }
 
+^{W}?`ifndef{W}?.* {
+      cerr << yylloc.text << ":" << yylloc.first_line <<
+	    ": warning: `ifndef not supported. Use an external preprocessor."
+	   << endl;
+  }
+
 ^`include{W}?.* {
       cerr << yylloc.text << ":" << yylloc.first_line <<
 	    ": warning: `include not supported. Use an external preprocessor."