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From: "Zack Weinberg" <zackw@stanford.edu> Date: Fri, 5 Jan 2001 14:40:26 -0800 On Fri, Jan 05, 2001 at 09:45:55PM +0000, Neil Booth wrote: > Mark Kettenis wrote:- > > > occur. Since the SHLIB_COMPAT macro uses the ISO C ## concatenation > > operator, -traditional messes things up. Is there any chance at > > convincing the GCC folks to provide a preprocessor that's backwards > > compatible with cccp? > > Try using the portable CONCAT macros that GCC does. That's much > simpler than rewriting tradcpp (which is what this would require). Concatenation with ## has never worked in -traditional mode. The real problem is something else. We used to preprocess this stuff without -traditional. Then the new preprocessor introduced some whitespace in funny places; see <http://sources.redhat.com/ml/libc-alpha/2000-11/msg00262.html>. Then Ulrich switched to -traditional (I think after a suggestion from you or Neil). And now the Hurd doesn't build anymore :-(. I cc'd you GCC folks to make you aware that the new preprocessor is causing some real pain, and I saw no way out. Fortunately there are at least two workarounds (thanks Neil and Jakub). I still think it would be better if the new integrated preprocessor would be backwards compatible with the old one, even for sources that are not C. Mark
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