leducp commented on issue #16775:
URL: https://github.com/apache/nuttx/issues/16775#issuecomment-3160066327
For the record, quick and dirty workaround for the undefined __xpg_error_r
symbol:
```cpp
#include <string.h>
extern "C" char * __xpg_strerror_r(int errnum, char * buf, size_t buflen)
{
(void) strerror_r(errnum, buf, buflen);
return buf;
}
```
You can put this anywhere in your C++ code, or without the extern "C" in a C
file.
Note that this is an improper wrapper: the GNU version of strerror_r (which
__xpg_error_r is the underlying implementation) is a bit different of the XSI
version provided by NuttX.
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