xgettext -k_ "--from-code=1250" -o ref.po ../sources.cc/*.cc ./dump.c
../sources.cc/igettext.cc:155: warning: Empty msgid.  It is reserved by GNU gettext:
                                        gettext("") returns the header entry with
                                        meta information, not the empty string.
xgettext: Non-ASCII string at ../sources.cc/wp2latex.cc:438.
          Please specify the source encoding through --from-code.
make: *** [ref.po] Error 1
