PROCESSOR-SDK-AM65X: "error: identifier "once_flag" is undefined" when including regex

Felix Heil

Hello,

we have a problem with the Toolchain ti-cgt-arm_20.2.0.LTS

As soon as we include the header <regex> we get the following error:

"C:/ti/ti-cgt-arm_20.2.0.LTS/include/libcxx/__locale", line 166: error: identifier "once_flag" is undefined
"C:/ti/ti-cgt-arm_20.2.0.LTS/include/libcxx/__locale", line 171: error: constexpr "std::__2::locale::id::id()" provides no initializer for:
member "std::__2::locale::id::__flag_"

as we watched the paths and #ifdefs we are not able to understand why the __locale doesn't find the defined struct from the included mutex-header.
We are not using any additional compiler flags.

How can we solve this compiler-error?

over 5 years ago

0 George Mock over 5 years ago

TI__Guru**** 253410 points

For the source file being built when this is seen ...

Felix Heil said:
"C:/ti/ti-cgt-arm_20.2.0.LTS/include/libcxx/__locale", line 166: error: identifier "once_flag" is undefined

... please follow the directions in the article How to Submit a Compiler Test Case.

Thanks and regards,

-George

0 George Mock over 5 years ago in reply to George Mock

TI__Guru**** 253410 points

Thank you for supplying a test case through private channels. I can reproduce the same behavior. I filed EXT_EP-10220 to have this investigated. You are welcome to follow at that link.

As a workaround, change the name of the header file mutex.hpp. The change has to be in the base name, and not the file extension.

Thanks and regards,

-George

Processors

Processors forum

PROCESSOR-SDK-AM65X: "error: identifier "once_flag" is undefined" when including regex