Eclipse cannot resolve type

[dmdamen]

Not sure this is the right forum but..

Eclipse is driving me nuts. I want to code ESP32 using Eclipse on Linux but I keep running into issues. I have a smaall piece of code that builds and flashed succefully but Eclipse keeps telling me it cannot resolve some types and functions.

I added an include statement that seems to work just fine:

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#include <mutex>

But when I want to declare a mutex or use one of the functions, eclipse is complaining. This statement produces an "cannot resolve" error:

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mutable std::mutex _mtx;

Compiling from the commandline and from eclipse works! No issues there.

I tried importing the @kolban C++ includes but that didn't help.

[dmdamen]

Found the issue.

I needed to go to Project Properties -> C/C++ General -> Preprocessor Include Paths, Macros etc. -> Providers -> CDT Cross GCC Built-in Compiler Settings and change the command to:

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xtensa-esp32-elf-gcc ${FLAGS} -std=c++11 -E -P -v -dD "${INPUTS}"

I needed to add the -std=c++11 part.