The Natural Philosopher wrote:

> On 23/09/18 21:17, NotReal wrote:
> > I am in need of some assistance in configuring the time display on
> > “sunclock: version 3.56, J.-P. Demailly”.  After fiddling around with
> > the .rcfile, I have managed to configure the local time (EDT) and date
> > in the lower left corner of the display and the UTC date and time on
> > the lower right -- well almost.  The date that is supposed to be UTC
> > remains as the local date.    The result is that the date is wrong
> > between 20:00 and 24:00 local each day.    I have found the UTC
> > switches for UTC hour (%G) and minutes (%N) but I cannot find what I
> > should use for UTC day of the week, day, month, and year.    I have a
> > feeling there are no such switches, but it doesn’t hurt to ask.
> >
>
> This is all there is (function writeStrip in sunclock.c)
>
> I suggest you add some code to this section and recompile
>
>
> ##############################################
>                        case 'G': sprintf(num, "%02d", gtp.tm_hour); break;   
>                         case 'H': sprintf(num, "%02d", ltp.tm_hour); break;
>                         case 'M': sprintf(num, "%02d", ltp.tm_min); break;
>                        case 'N': sprintf(num, "%02d", gtp.tm_min); break;   
>                         case 'P': num[0]=ampm; num[1]='\0'; break;
>                         case 'S': sprintf(num, "%02d", ltp.tm_sec); break;
> #ifdef NEW_CTIME
>                         case 'Z': strcpy(num, ltp.tm_zone); break;
> #else
>                         case 'Z': strcpy(num, tzname[ltp.tm_isdst]); break;
> #endif
>                        case 'a': strcpy(num, Day_name[ltp.tm_wday]); break;
>                         case 'd': sprintf(num, "%02d", ltp.tm_mday); break;
>                         case 'h': sprintf(num, "%02d", hour); break;   
>                        case 'j': sprintf(num, "%02d", 1+ltp.tm_yday); break;
>                        case 'b': strcpy(num, Month_name[ltp.tm_mon]); break;
>                        case 'm': sprintf(num, "%02d", 1+ltp.tm_mon); break;
>                         case 't': {
>                            int w = ltp.tm_year+1900;
>                            if (w % 4==0 && (w % 100!=0 || w % 400 == 0))
>                              w = 366;
>                            else
>                              w = 365;
>                            sprintf(num, "%d", w);
>                            break;
>                            }
>                        case 'y': sprintf(num, "%02d", ltp.tm_year%100);
break;
>                        case 'Y': sprintf(num, "%d", ltp.tm_year+1900); break;
>                         case 'U': {
>                            struct tm ftm;
>                            time_t ftime;
>                            int w;
>                            /*
>                             * define weeknumber
>                             * week #1 = week with the first thursday
>                             */
>                           /* set reference date to 1st of january, 12:00:00
*/
>                            (void) memset(&ftm, 0, sizeof(struct tm));
>                            ftm.tm_isdst = -1;
>                            ftm.tm_mon = 0;
>                            ftm.tm_mday = 1;
>                            ftm.tm_year = ltp.tm_year;
>                            ftm.tm_hour = 12;
>                            ftm.tm_min = 0;
>                            ftm.tm_sec = 0;
>                            ftime = mktime(&ftm);
>                            ftm = *localtime(&ftime);
>                            /* get first sunday (start of week) */
>                            if (ftm.tm_wday < 5)
>                               w = 1 - ftm.tm_wday;
>                            else
>                               w = 8 - ftm.tm_wday;
>                            /* get weeknumber */
>                            sprintf(num, "%02d",
>                                 ((ltp.tm_yday+1-ltp.tm_wday-w)/7)+1);
>                            break;
>                            }
>                         case '_': c = ' ';
>                         default: num[0] = c; num[1] = '\0'; break;


That was a noble idea.  I added the following lines to sunclock.c after “case
'Y'” at line 2048.


/*
 * Begin Add for UTC Week
*/
               case 'f': strcpy(num, Day_name[gtp.tm_wday]); break;
               case 'e': sprintf(num, "%02d", gtp.tm_mday); break;
               case 'k': sprintf(num, "%02d", 1+gtp.tm_yday); break;
               case 'c': strcpy(num, Month_name[gtp.tm_mon]); break;
               case 'n': sprintf(num, "%02d", 1+gtp.tm_mon); break;
               case 'v': {
                  int w = gtp.tm_year+1900;
                  if (w % 4==0 && (w % 100!=0 || w % 400 == 0))
                    w = 366;
                  else
                    w = 365;
                  sprintf(num, "%d", w);
                  break;
                  }
               case 'w': sprintf(num, "%02d", gtp.tm_year%100); break;
               case 'W': sprintf(num, "%d", gtp.tm_year+1900); break;

/*
 * End Add for UTC Week
*/

I figured that was enough to at least try but that is where the experiment
ended.  Let me first preface this by stating that although I have been a
Slackware user for many years, this is my first foray into Raspian.  When I
went to compile after the additions, I was expecting to do “./configure”,
“make”, and “make install”, but after reading the INSTALL file I knew
that was
not going to happen.  I first tried “xmkmf “, but that resulted in
“command not
found”.

I next tried. “make -f Makefile.noimake “ but that immediately resulted in
“fatal error: X11/Xatom.h: No such file or directory”.   A search for
“Xatom.h.” showed that it was more than a path problem.  It just wasn’t
there
on the Pi.

A search on my Slackware server however showed that it did have an
“Xatom.h”
file so I tried to do a compile on that using “make -f Makefile.noimake”. 
It
apparently then found the “Xatom.h” file but it also produced tons of new
warnings and errors until it finally bombed out.  I tried it with both the
unmodified and modified versions of sunclock.c, so it is not just my tinkering
that was the problem, although I have to admit there were a few more errors in
the modified version.

Based on my level of expertise, as in a lack of, I think I am done on this
effort.

Thanks for trying.

--- SoupGate-Win32 v1.05