3035fe4b8c8e8ac74f12417dd350e25f11290dd4
braney
  Sun Apr 12 09:42:43 2020 -0700
support RNA genomes by repurposing hgPbOk in dbDb to specify whether the
database is an RNA genome  #25350

diff --git src/hg/hgTracks/hgTracks.h src/hg/hgTracks/hgTracks.h
index eb6d628..98bc2b3 100644
--- src/hg/hgTracks/hgTracks.h
+++ src/hg/hgTracks/hgTracks.h
@@ -469,30 +469,33 @@
 extern long defaultVirtWinEnd;    // default end   of virtual window in bases
 extern long virtWinBaseCount;  /* Number of bases in windows, also virtWinEnd - virtWinStart. */
 extern long virtSeqBaseCount; // all bases in virt chrom
 //extern char *virtPosition;          /* Name of virtual position. TODO Remove? */
 extern char *virtChromName;         /* Name of virtual chrom */
 extern boolean virtMode;            /* Are we in virtual chrom mode? */
 extern boolean virtChromChanged;     /* Has the virtChrom changed? */
 extern boolean emAltHighlight;      /* Highlight alternativing regions in virt view? */
 extern int emPadding;               /* # bases padding for exon-mostly regions */
 extern int gmPadding;               /* # bases padding for gene-mostly regions */
 extern char *emGeneTable;           /* Gene table to use for exon mostly */
 extern struct track *emGeneTrack;   /* Track for gene table for exon mostly */
 extern struct rgbColor vertWindowSeparatorColor; /* color for vertical windows separator */
 extern char *multiRegionsBedUrl;       /* URL to bed regions list */
 
+// is genome RNA?
+extern boolean genomeIsRna;
+
 // demo2
 extern int demo2NumWindows;
 extern int demo2WindowSize;
 extern int demo2StepSize;
 
 // singleTrans (single transcript)
 extern char *singleTransId; 
 
 // singleAltHaplos (one alternate haplotype)
 extern char *singleAltHaploId; 
 
 extern char *virtModeType;         /* virtual chrom mode type */
 extern char *lastVirtModeType;
 extern char *virtModeShortDescr;   /* short description of virt mode */
 extern char *virtModeExtraState;   /* Other settings that affect the virtMode state such as padding or some parameter */