Fink (glibmm2.4-dev, glibmm2.4-shlibs) install error

Install errors of glibmm2.4-dev, glibmm2.4-shlibs;

/opt/sw3/include/sigc++-2.0/sigc++/trackable.h:40:59: error: expected ';' at end of declaration list, etc

fatal error: too many errors emitted, stopping now [-ferror-limit=]
31 warnings and 20 errors generated.
make[2]: *** [iochannel.lo] Error 1
make[2]: *** Waiting for unfinished jobs....
mv -f .deps/module.Tpo .deps/module.Plo
31 warnings and 20 errors generated.
make[2]: *** [markup.lo] Error 1
31 warnings and 20 errors generated.
make[2]: *** [keyfile.lo] Error 1
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2
### execution of make failed, exit code 2
### execution of /tmp/fink.ntakQ failed, exit code 2

Failed: phase compiling: glibmm2.4-shlibs-2.22.2-102 failed

macOS BigSur (11.7.9)
Xcode 13, CommandLineTools 13
Package 0.45.99.git
Max.build# :  4

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