errors in UNDEFINED symbols code

[Jonathan100]

Hello!
When i am define symbol in eclipse-based Vitis, the code that is UNDEFINED is gray colored so it is not meant to be compiled.

However i am getting error in this area:

"fatal error: stld1553_nix.h: No such file or directory"

Why it is giving error in this area?

[AbstractionAnon]

Your compiler can't find the specified file.
How you specify to the compiler where to look, depends on the compiler.
What compiler are you using?

[kigar64551]

Also, just because some code appears "gray colored" (disabled) in your text-editor (IDE), e.g. Eclipse, it does not mean that this code is actually disabled from the actual compiler's perspective!

Most text-editor targeted for program code have some, more or less, advanced "syntax highlighting" capabilities. When it comes to C/C++ preprocessor directives, the text-editor will have to make some educated guesses about which macros are defined (or not), in order to decide whether code sections enclosed in #ifdef's is enabled (or not). But only the compiler will have the full picture and know for sure...

[Jonathan100]

Hi

Basically software is doing auto. compiling and linking . the command for compiling is:

aarch64-linux-gnu-g++

i run with Linux btw on xilinx board.

So i need to provide the requested .h file anyway?

[kigar64551]

If you can not change the code in question, and if that code does #include the file "stld1553_nix.h", then yes, you will have to provide that file for the compilation to succeed ;-)

That is unless the #include directive is guarded by an ifdef or ifndef – in which case you could prevent the #include by (un)defining the respective macro, e.g by passing -DNAME or -UNAME on the command-line.


If, in fact, you can change the code, then you can simply remove the #include, if you want... 🙃