Hello, anyone tried to use either of these functions (I just need a UTC time)
//time_t utctime = mktime(ptm);
time_t utctime = timegm(ptm);
Both of them generate warning: implicit declaration of function ‘timegm’. I tried to add CONFIG_DATE_TIME=y to prj.conf, but I also got an error
41: warning: attempt to assign the value ‘y’ to the undefined symbol DATE_TIME
Thank you !