4f1496f25e2388a703aef7b2976bef37497fa9a0
braney
  Sat Apr 20 14:26:04 2013 -0700
a tweak to common.mk to look for stdc++ library, and to snakeTrack to keep track of mapName
diff --git src/hg/hgTracks/snakeTrack.c src/hg/hgTracks/snakeTrack.c
index f77cc1e..8c7ff2c 100644
--- src/hg/hgTracks/snakeTrack.c
+++ src/hg/hgTracks/snakeTrack.c
@@ -923,30 +923,31 @@
     while (cur)
     {
 	struct hashEl* hel;
 
 	//safef(buffer, sizeof buffer, "%s.%c", cur->qChrom,cur->strand);
 	safef(buffer, sizeof buffer, "%s", cur->qChrom);
 	if ((hel = hashLookup(qChromHash, buffer)) == NULL)
 	    {
 	    AllocVar(lf);
 	    lf->original = (void *)1;
 	    slAddHead(&lfList, lf);
 	    lf->start = 0;
 	    lf->end = 1000000000;
 	    lf->grayIx = maxShade;
 	    lf->name = cloneString(buffer);
+	    lf->extra = cloneString(buffer);
 	    lf->orientation = (cur->strand == '+') ? 1 : -1;
 	    hashAdd(qChromHash, lf->name, lf);
 	    }
 	else
 	    {
 	    lf = hel->val;
 	    }
 
 	struct snakeFeature  *sf;
 	AllocVar(sf);
 	slAddHead(&lf->components, sf);
 	
 	sf->start = cur->tStart;
 	sf->end = cur->tStart + cur->size;
 	if (cur->strand == '-')