[antlr-interest] VS 2008 build setup - Antlr is called unnecessarily when grammar.g hasn't changed

[Andrew Chalmers]

I followed the instructions here (http://www.antlr.org/wiki/display/ANTLR3/Integration+with+Development+Environments).

 

My grammar.g has two child (dependent) items, blahLexer.cs and blahParser.cs. When I build my solution, Antlr is called, and correctly rebuilds the lexer and parser, which is great.

 

My problem is that Antlr is called _every_ time I run a build, even when the two dependent items (lexer and parser.cs) are up-to-date wrt the grammar definition.

 

Anyone know how to instruct msbuild (or even Antlr; I'm not picky!) to skip the rebuild of lexer and parser when they're already up-to-date?

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