U_CASEXFRM         42 maint/gnulib/lib/unicase/u-casecoll.h     U_CASEXFRM (s1, n1, iso639_language, nf, buf1, &transformed1_length);
U_CASEXFRM         50 maint/gnulib/lib/unicase/u-casecoll.h     U_CASEXFRM (s2, n2, iso639_language, nf, buf2, &transformed2_length);