e685265dd1b666acaab2bc076c141c368fb4be66
hiram
  Thu Oct 15 11:36:17 2015 -0700
fixup gcc warnings for -Wunused-but-set-variable refs #16121

diff --git src/hg/hgTracks/expRatioTracks.c src/hg/hgTracks/expRatioTracks.c
index 9308763..0467e9f 100644
--- src/hg/hgTracks/expRatioTracks.c
+++ src/hg/hgTracks/expRatioTracks.c
@@ -1141,90 +1141,86 @@
     makeRedGreenShades(hvg);
 if(tg->limitedVis == tvDense || tg->limitedVis == tvPack || tg->limitedVis == tvSquish)
     {
     score = score/10;
     return getColorForAffyExpssn(score, 262144/16); /* 262144 == 2^18 */
     }
 else
     {
     return expressionColor(tg, item, hvg, 1.0, 3.0);
     }
 }
 
 Color expRatioColor(struct track *tg, void *item, struct hvGfx *hvg)
 /* Does the score->color conversion  */
 {
-struct linkedFeatures *lf;
 struct linkedFeaturesSeries *lfs;
 if(!exprBedColorsMade)
     makeRedGreenShades(hvg);
 if(tg->visibility == tvDense)
     {
     lfs = item;
     if (trackDbSetting(tg->tdb, EXP_COLOR_DENSE))
         /* scaled by 1000.  Brighten up just a bit... */
         return expressionScoreColor(tg, lfs->grayIx * 1100, hvg, tg->expScale,
                                                         tg->expScale);
     else
         return MG_BLACK;
     }
 else
     {
-    lf = item;
     return expressionColor(tg, item, hvg, tg->expScale, tg->expScale);
     }
 }
 
 Color affyUclaNormColor(struct track *tg, void *item, struct hvGfx *hvg)
 /* Does the score->color conversion for affymetrix arrays using ratios,
  * if dense do an intensity color in blue based on score value otherwise do
  * red/green display from expScores */
 {
 struct linkedFeatures *lf = item;
 if(!exprBedColorsMade)
     makeRedGreenShades(hvg);
 if(tg->customInt != 1)
     {
     return shadesOfSea[grayInRange(lf->score, 0, 1000)];
     }
 else
     {
     return expressionColor(tg, item, hvg, 1.0, 3.0);
     }
 }
 
 /*For Lowe Lab arrays with M and A values*/
 Color loweRatioColor(struct track *tg, void *item, struct hvGfx *hvg)
 /* Does the score->color conversion  */
 {
-struct linkedFeatures *lf;
 struct linkedFeaturesSeries *lfs;
 if(!exprBedColorsMade)
     makeRedGreenShades(hvg);
 if(tg->visibility == tvDense)
     {
     lfs = item;
     if (trackDbSetting(tg->tdb, EXP_COLOR_DENSE))
         /* scaled by 1000.  Brighten up just a bit... */
         return loweExpressionScoreColor(tg, lfs->grayIx * 1100, hvg, tg->expScale,
                                                         tg->expScale);
     else
         return MG_BLACK;
     }
 else
     {
-    lf = item;
     return loweExpressionColor(tg, item, hvg, tg->expScale, tg->expScale);
     }
 }
 
 void fixLfs(struct track *tg)
 /* Little function called at the loadMultScoresBed and the ct one */
 /* to polish the lfs up. */
 {
 struct linkedFeatures *lf;
 struct linkedFeaturesSeries *lfs;
 for (lfs = tg->items; lfs != NULL; lfs = lfs->next)
     /* Set the beginning and end of each linkedFeaturesSeries. */
     {
     lfs->start = BIGNUM;
     lfs->end = 0;