C++ Builder XE: find out where a specific h file is included

I'm currently porting a rather big project from C++ Builder 5 to the newest version, C++ Builder XE. It's my first experience with C++ Builder. I'm st开发者_如何学编程uck with an error in a file, but I don't want to include this file anyway (it's code of a component not required anymore). I was not able to find out where and how this file is included, however. The compiler error does not give any hint at all apart from the error itself. How do you usually find out where a file is included?

The preprocessor is perfect for this. Right click on the cpp file which gives you the error in the project manager then choose "preprocess" The output from this tells you every file and line number in the order they are processed. You can then search for the file in question, and the line above it is the file that included it. This could conceivably be another header file as well, so it could be a long chain, but you can determine exactly where it comes from.

In the Project Options, enable the compiler's general messages. When the compiler encounters an error, you will be able to see the chain of includes that lead to the erroneous code.

If the files in question are rather sizable, a tool like Doxygen can be helpful in showing you the include dependencies (as well as call paths, etc.).

If it's just once or twice you'll have to do this, David Dean's suggestion of the preprocessor is golden.