Ancient is in the eye of the beholder. The CMake folks appear to take backward compatibility seriously. You will appreciate this in ten years when you revive a project that uses CMake.
Bill On Fri, Jul 3, 2009 at 12:54 PM, Marcel Loose<[email protected]> wrote: > Wow, > > So this really is ancient code! > Thanks for the explanation. > > Best regards, > Marcel Loose > > On Fri, 2009-07-03 at 07:59 -0400, Brad King wrote: >> Eric Noulard wrote: >> >> If so, I still don't quite get the usage pattern in, e.g., >> >> CheckIncludeFile.cmake. What are they trying to check? >> > >> > Better ask the author of this file :-) >> >> This was a hack left from before the 'DEFINED' option was >> available from the if() command. The code >> >> if(VAR MATCHES "^VAR$") >> >> is almost equivalent to >> >> if(NOT DEFINED VAR) >> >> because the if() command replaces VAR with ${VAR} implicitly >> when VAR is defined (but '^VAR$' is not defined and does not >> get replaced). The implicit conversion is left from *very* >> early CMake when there was no ${} syntax. >> >> -Brad > > _______________________________________________ > Powered by www.kitware.com > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Please keep messages on-topic and check the CMake FAQ at: > http://www.cmake.org/Wiki/CMake_FAQ > > Follow this link to subscribe/unsubscribe: > http://www.cmake.org/mailman/listinfo/cmake > _______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
