RPi - ctime location?

@eightlines wrote:

I'm doing a date countdown, and the code works on the Mac OS, but when moving over to the RPI (of 0.9.2, Raspbian Jessie) I think the lib ctime cannot be found and I get back 0 for all of my comparisons. Anyone know how I can link up ctime properly?

Update: ctime is loading but the result is always 0. My code:

#include <ctime>

#define DELINIATION_DAY 86400
#define DELINIATION_HOUR 3600
#define DELINIATION_MIN 60

struct tm dest;
struct tm now;
time_t diff;

dest.tm_year = 2016;
dest.tm_mon = 8;
dest.tm_mday = 17;
dest.tm_hour = 19;
dest.tm_min = 0;
dest.tm_sec = 0;

now.tm_year = ofGetYear();
now.tm_mon = ofGetMonth() - 1;
now.tm_mday = ofGetDay();
now.tm_hour = ofGetHours();
now.tm_min = ofGetMinutes();
now.tm_sec = ofGetSeconds();

diff = difftime(mktime(&now), mktime(&dest));

sprintf(buf, "%02.0f", abs(floor(diff / DELINIATION_DAY)));
string days(buf);

sprintf(buf, "%03.0f", abs(floor(fmod(diff, DELINIATION_DAY)) / DELINIATION_HOUR));
string hours(buf);

sprintf(buf, "%02.0f", abs(floor(fmod(fmod(diff, DELINIATION_DAY), DELINIATION_HOUR)) / DELINIATION_MIN));
string minutes(buf);

sprintf(buf, "%02.0f", abs(floor(fmod(fmod(fmod(diff, DELINIATION_DAY), DELINIATION_HOUR), DELINIATION_MIN))));
string seconds(buf);

cout << days << ", " << hours << " : " << minutes << " : " << seconds << endl;

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