1d76bf881d3e18580739e44698a0d1a499c2f9f1
hiram
  Fri Oct 2 10:31:39 2015 -0700
fixup gcc warnings for -Wunused-but-set-variable refs #16121

diff --git src/lib/bPlusTree.c src/lib/bPlusTree.c
index 6713639..50bc929 100644
--- src/lib/bPlusTree.c
+++ src/lib/bPlusTree.c
@@ -271,37 +271,36 @@
 }
 
 static bits64 bptDataStart(struct bptFile *bpt)
 /* Return offset of first bit of data (as opposed to index) in file.  In hind sight I wish
  * this were stored in the header, but fortunately it's not that hard to compute. */
 {
 bits64 offset = bpt->rootOffset;
 for (;;)
     {
     /* Seek to block start */
     udcSeek(bpt->udc, offset);
 
     /* Read block header,  break if we are leaf. */
     UBYTE isLeaf;
     UBYTE reserved;
-    bits16 childCount;
     udcMustReadOne(bpt->udc, isLeaf);
     if (isLeaf)
          break;
     udcMustReadOne(bpt->udc, reserved);
     boolean isSwapped = bpt->isSwapped;
-    childCount = udcReadBits16(bpt->udc, isSwapped);
+    udcReadBits16(bpt->udc, isSwapped);  // childCount
 
     /* Read and discard first key. */
     char keyBuf[bpt->keySize];
     udcMustRead(bpt->udc, keyBuf, bpt->keySize);
 
     /* Get file offset of sub-block. */
     offset = udcReadBits64(bpt->udc, isSwapped);
     }
 return offset;
 }
 
 static bits64 bptDataOffset(struct bptFile *bpt, bits64 itemPos)
 /* Return position of file of data corresponding to given itemPos.  For first piece of
  * data pass in 0. */
 {