Damien Fisher wrote:
I'm not sure I quite understand what you are asking for here...could you give an example?
On 7/28/05, Stefan Seefeld <seefeld@sympatico.ca> wrote:
What would make such a tool even more useful than a replacement for 'gcc -M' would be if it could generate dependencies for sets of files, i.e. with the possibility of internal caching such that it doesn't have to reparse a file twice if not necessary. But that may require quite some work, for example to determine a 'state' dependent on values of all the defined macros.
The original 'makedepend' tool was part of XFree86, I believe (bundled with the 'imake' tool), and it was able to generate all dependencies for a set of source files in a single run. The result was appended to a Makefile. The original idea to generate dependencies in a single call instead of individually per source file was that it would be significantly faster, mostly due to the processor's ability to cache already processed headers, and so it didn't need to reparse it when a second source file included it. I'm not sure how much of an issue that today. A first step would be to let wave generate a dependency list for a single source file in a way that it could be used by different tools (make, scons, bjam), and later work on the infrastructure to allow it to efficiently process multiple source files at once. Regards, Stefan