D:\C>try.exe German.utf8
German_Germany.utf8: März (5 bytes)

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D:\>perl -MPOSIX -wle "$loc = POSIX::setlocale( LC_ALL, 'German.utf8' ); print $loc;"
German_Germany.utf8

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D:\>perl -MPOSIX -wle "$loc = POSIX::setlocale( LC_ALL, 'German.utf8' ); print $loc;"
Use of uninitialized value $loc in print at -e line 1.

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D:\C>try_gcc.exe German.utf8
(null): March (5 bytes)