Hello, Currently, to use the isblank() function one must compile with "-D_GNU_SOURCE". However, isblank() is now part of C99 (it conforms to POSIX.1-2001 and C99 7.4.1.3 according to the man page). Shouldn't the mintlib be updated to reflect that change? I suspect there are other similar cases but that's the one I came across recently. JFL -- Jean-François Lemaire