let mutt determine whether wide-char functions exist or not. Else we would run into symbol conflicts under platforms which actually have wc funcs (like FreeBSD 5)

mutt/mutt.spec

@@ -173,7 +173,6 @@ Conflicts:    mutt15
         --enable-buffy-size \
         --disable-warnings \
         --disable-iconv \
-        --without-wc-funcs \
         --disable-nls \
         $options