Thank you both :-)
- Bug#838060: po.m4: warning: AM_PROG_MKDIR_P: this macro is d... Paul Wise
- Bug#838060: po.m4: warning: AM_PROG_MKDIR_P: this macro... Daiki Ueno
- Bug#838060: po.m4: warning: AM_PROG_MKDIR_P: this m... Santiago Vila
Thank you both :-)