On Thu, Sep 2, 2010 at 10:08, Michael Wild <them...@gmail.com> wrote: > Ever timed "gcc -M" which is the usual approach to dependency-generation of > hand-crafted Makefiles? THAT is slow. ;-)
It's also correct, which requires preprocessing all the headers. gcc -MMD will do the same as a side-effect of the build so it's basically free. Tup generates this graph by tracing the system calls made by the compiler, but it requires dynamic loading. The problem with these solutions is that they are not sufficiently portable, until every compiler vendor supports -MMD, or ever potential build system has dynamic loading, we have to live with a slow and inaccurate, or very slow, method. Jed _______________________________________________ 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
