no daylight variable on my OS

[Anonymous Howard]

I have successfully built Celestia from Linux source on Darwin. I'm using X11 and gtk for graphics, rather than Aqua.

In order to get it to build, I had to comment out a few lines in src/celestia/gtkmain.cpp that referenced daylight and/or timezone. Lines like the following:

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        appCore->setTimeZoneBias(-timezone + 3600 * daylight);
        appCore->setTimeZoneName(tzname[daylight]);

My question is, What do I lose by commenting these few lines out? Celestia appears to work properly, although I have nothing to compare it to. Is there an easy macro to #define daylight and timezone?

p.s.- FYI, I also had to hack configure, which couldn't find GL/gl.h, GL/glu.h and GL/glut.h as others have reported. Also, I'm confused as to why there are two releases of 1.3.1.