Requirement of C++11 when using droption or drmemtrace

[Derek C.]

Hello,

I'm having trouble with writing my own drmemtrace-analyzer in C++17. I figured that DynamoRIO overwrites the used C++ standard at two places in the DynamoRIOConfig.cmake file.

https://github.com/DynamoRIO/dynamorio/blob/7682c4ab6b436d429e05b9948422bfca201305bf/make/DynamoRIOConfig.cmake.in#L1236

and

https://github.com/DynamoRIO/dynamorio/blob/7682c4ab6b436d429e05b9948422bfca201305bf/make/DynamoRIOConfig.cmake.in#L1280

Without removing those lines, I wasn't able to specify C++17 for my project. DynamoRIO always overwrote it with C++11. It there a reason behind this?

Commenting those lines out works fine.

Thanks

[Derek Bruening]

The reason would be that the defaults for the compilers at that time were older than C++11 so DR's C++ exports would not build without explicitly specifying C++11.  If you would like to add logic to avoid limiting to C++11 if the compiler's default is at least C++11 please send a pull request.

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