c++ - MinGW does not recognise #pragma GCC optimize

Question

I have a header only library that relies on heavy template metaprogramming. In Debug it may provide an object file of an enormous size, that is optimized out in Release mode. I don't want to force the users of my library to take care of this problem manually, thus I need to force optimization for parts of code within my header.

But on Windows MinGW seems to not recognize the #pragma GCC optimize ("Os").

#ifdef __GNUC__
#pragma GCC push_options
#pragma GCC optimize ("Os")
#endif

Even with these pragmas Debug linking fails with

C:UsersSergeyAppDataLocalTempccgUYGDJ.s: Fatal error: can't close Modules/Devices/EuroFlir410/external/CMakeFiles/test.Euroflir410.conversion.dir/test_conversion.cpp.obj: file too big

Thus it does nothing...

How can I circumvent this problem?

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MinGW does not recognize #pragma GCC target either

question from:https://stackoverflow.com/questions/65840449/mingw-does-not-recognise-pragma-gcc-optimize

Answer 1

Waitting for answers