Excessive rebuilds
I have quite a bit of base code (a bunch of header files) that I reuse for many of my programs; I store them in a folder /Common Code/, and it has always worked fine. Just yesterday, without (knowingly) doing anything wrong, any program that I have that includes these header files forces a rebuild of all source files whenever I try to run or compile it, even when I haven't changed any code.
I'm guessing that I accidentally toggled some command in the Visual Studio environment, but I've searched around the menus for a while and couldn't find anything. Does anyone know of any possible reason?
Thanks,
Jesse Beder
Unfortunately there is no easy way to diagnose this.
The first place to check is the build log. We output a warning in some cases that force us to always rebuild.
If we don't output a warning, you're pretty much down to checking the dependencies manually in order to identify where they were set incorrectly.
I'm sorry I can't offer more help without actually seeing the project file.
Thanks,
There's a C++ compiler flag
/showIncludes that causes the compiler to output the #include dependencies while your projects are being built. Maybe this might help to see if there is in fact an unexpected dependency or perhaps provide evidence of a bug.
To add it, go to Project Properties, C/C++, Command Line, and type the flag in under Additional Options.
Another thought: while I'm not certain how VS computes file dependencies, I wonder if preprocessor definitions around #includes might be at play here. Certain files may not be included, but the VS dependency checker counts the dependency anyway.
