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Running the Darwin preprocessor

From: Derek Robert Price
Subject: Running the Darwin preprocessor
Date: Fri, 13 Jun 2003 13:11:37 -0400
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.2) Gecko/20030208 Netscape/7.02

Has anyone encountered this on MacOSX? I'm running the pre-Jaguar OSX 10.1 (Darwin kernel 5.5).

Autoconf/configure discovers that running the C preprocessor requires `cc -E', but `cc -E' doesn't appear to pass other options through to the C preprocessor (in this case `cpp').

Basically, I was attempting to discover a definition using `cpp -dM' to output defined macros, but `cc -E -dM' doesn't work even though `cpp -dM' does. Is there some way around this problem? Is configure discovering the wrong preprocessor on OSX? Do later version of the OSX dev kit fix the problem?



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