--- Csound5.10.1/InOut/rtalsa.c.orig 2008-12-15 21:18:39.000000000 +0000 +++ Csound5.10.1/InOut/rtalsa.c 2009-03-31 00:28:48.000000000 +0100 @@ -45,6 +45,7 @@ #include <sys/select.h> #include <termios.h> #include <errno.h> +#define _POSIX_C_SOURCE 1 #include <alsa/asoundlib.h> #include <sched.h> #include <unistd.h>