[GitHub] [incubator-nuttx] jcursiolf edited a comment on issue #5530: libxx "C++ Example using CMake" guide "No thread API" error

[GitBox <gi...@apache.org>]

jcursiolf edited a comment on issue #5530:
URL: https://github.com/apache/incubator-nuttx/issues/5530#issuecomment-1045112395


   Small update on this error:
   
   ```sh
   /path/to/hellocpp/nuttx-export-10.1.0/include/libcxx/__config:1142:6: error: #error "No thread API"
    1142 | #    error "No thread API"
         |      ^~~~~
   ```
   
   It is caused because there is no definition of `__NuttX__` whatsoever in any of the files created by `make export`. From the little I could find, it appears that it has been moved from the individual _Make.defs_ to _tools/Config.mk_ by #2192 . Inserting it back on the _Make.defs_ made no diference. 
   
   For the purpostes of getting rid of it, I have hardcoded the definition in the _HelloWord.h_ of said guide. But I am quite sure this is not how it is supposed to be done. So, if anyone has any input, specially considering updating the guide, it'd be highly appreciated.


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