Error when compile program using libfmt with gcc -fexec-charset

[royqh1979]

When I'm trying to build a simple test program using gcc with argument -fexec-charset, I got the following error:

In file included from D:/MinGW32/i686-w64-mingw32/include/fmt/format.h:48,
                 from test.cpp:1:
D:/MinGW32/i686-w64-mingw32/include/fmt/core.h:413:68: error: converting UCN to execution character set: Illegal byte sequence
 FMT_MSC_WARNING(suppress : 4566) constexpr unsigned char micro[] = "\u00B5";
                                                                    ^~~~~~~~

The command used to compile is:

R:\RedPanda-Release\RedPandaIDE>gcc test.cpp -finput-charset=UTF-8 -fexec-charset=gbk
In file included from D:/MinGW32/x86_64-w64-mingw32/include/fmt/format.h:49,
                 from test.cpp:1:
D:/MinGW32/x86_64-w64-mingw32/include/fmt/core.h:411:68: error: converting UCN to execution character set: Illegal byte sequence
  411 | FMT_MSC_WARNING(suppress : 4566) constexpr unsigned char micro[] = "\u00B5";

And the test problem is:

#include <fmt/format.h>

int main() {
	fmt::print("test");
	return 0;
}

[vitaut]

In general it's recommended to use Unicode instead of legacy encodings but this particular error has been fixed in fc07217 by switching to a more widely available character for Unicode detection.