commit fa7cd65e480d80ba1cd196bdcec8f4714e361e8e
Author: Mathias Stearn <redbeard0531@gmail.com>
Date:   Sun Apr 3 19:10:36 2011 -0400

    g++ 4.6 compile (new -Wunused-but-set-variable warning)

diff --git a/db/btree.cpp b/db/btree.cpp
index 2758f72..4162d6a 100644
--- a/db/btree.cpp
+++ b/db/btree.cpp
@@ -1226,8 +1226,6 @@ namespace mongo {
             out() << "   " << thisLoc.toString() << ".insertHere " << key.toString() << '/' << recordLoc.toString() << ' '
                   << lchild.toString() << ' ' << rchild.toString() << " keypos:" << keypos << endl;
 
-        DiskLoc oldLoc = thisLoc;
-
         if ( !basicInsert(thisLoc, keypos, recordLoc, key, order) ) {
             // If basicInsert() fails, the bucket will be packed as required by split().
             thisLoc.btreemod()->split(thisLoc, keypos, recordLoc, key, order, lchild, rchild, idx);
diff --git a/db/dbcommands.cpp b/db/dbcommands.cpp
index 2580f86..56c0fce 100644
--- a/db/dbcommands.cpp
+++ b/db/dbcommands.cpp
@@ -1460,7 +1460,7 @@ namespace mongo {
             uassert( 13049, "godinsert must specify a collection", !coll.empty() );
             string ns = dbname + "." + coll;
             BSONObj obj = cmdObj[ "obj" ].embeddedObjectUserCheck();
-            DiskLoc loc = theDataFileMgr.insertWithObjMod( ns.c_str(), obj, true );
+            theDataFileMgr.insertWithObjMod( ns.c_str(), obj, true );
             return true;
         }
     } cmdGodInsert;
diff --git a/db/index.cpp b/db/index.cpp
index c696e27..218ecb3 100644
--- a/db/index.cpp
+++ b/db/index.cpp
@@ -127,7 +127,6 @@ namespace mongo {
     void getIndexChanges(vector<IndexChanges>& v, NamespaceDetails& d, BSONObj newObj, BSONObj oldObj, bool &changedId) {
         int z = d.nIndexesBeingBuilt();
         v.resize(z);
-        NamespaceDetails::IndexIterator i = d.ii();
         for( int i = 0; i < z; i++ ) {
             IndexDetails& idx = d.idx(i);
             BSONObj idxKey = idx.info.obj().getObjectField("key"); // eg { ts : 1 }
diff --git a/db/update.cpp b/db/update.cpp
index e173902..85c3f9c 100644
--- a/db/update.cpp
+++ b/db/update.cpp
@@ -992,7 +992,7 @@ namespace mongo {
                 BSONObj newObj = mss->createNewFromMods();
                 checkTooLarge(newObj);
                 assert(nsdt);
-                DiskLoc newLoc = theDataFileMgr.updateRecord(ns, d, nsdt, r, loc , newObj.objdata(), newObj.objsize(), debug);
+                theDataFileMgr.updateRecord(ns, d, nsdt, r, loc , newObj.objdata(), newObj.objsize(), debug);
             }
 
             if ( logop ) {
diff --git a/dbtests/queryoptimizertests.cpp b/dbtests/queryoptimizertests.cpp
index acf9217..2d6f752 100644
--- a/dbtests/queryoptimizertests.cpp
+++ b/dbtests/queryoptimizertests.cpp
@@ -1558,7 +1558,6 @@ namespace QueryOptimizerTests {
                     theDataFileMgr.insertWithObjMod( ns(), temp );
                 }
                 BSONObj hint = fromjson( "{$hint:{a:1,b:1}}" );
-                BSONElement hintElt = hint.firstElement();
                 auto_ptr< FieldRangeSet > frs( new FieldRangeSet( ns(), fromjson( "{a:5,b:{$in:[2,3,6,9,11]}}" ) ) );
                 QueryPlan qp( nsd(), 1, *frs, *frs, fromjson( "{a:5,b:{$in:[2,3,6,9,11]}}" ), BSONObj() );
                 boost::shared_ptr<Cursor> c = qp.newCursor();
@@ -1581,7 +1580,6 @@ namespace QueryOptimizerTests {
                     theDataFileMgr.insertWithObjMod( ns(), temp );
                 }
                 BSONObj hint = fromjson( "{$hint:{a:1,b:1}}" );
-                BSONElement hintElt = hint.firstElement();
                 auto_ptr< FieldRangeSet > frs( new FieldRangeSet( ns(), fromjson( "{a:{$gte:5},b:{$in:[2,3,6,9,11]}}" ) ) );
                 QueryPlan qp( nsd(), 1, *frs, *frs, fromjson( "{a:{$gte:5},b:{$in:[2,3,6,9,11]}}" ), BSONObj() );
                 boost::shared_ptr<Cursor> c = qp.newCursor();
diff --git a/shell/shell_utils.cpp b/shell/shell_utils.cpp
index 6c398ef..53484fd 100644
--- a/shell/shell_utils.cpp
+++ b/shell/shell_utils.cpp
@@ -260,7 +260,7 @@ namespace mongo {
             BSONElement e = oneArg(args);
             bool found = false;
 
-            path root( args.firstElement().valuestrsafe() );
+            path root( e.valuestrsafe() );
             if ( boost::filesystem::exists( root ) ) {
                 found = true;
                 boost::filesystem::remove_all( root );
diff --git a/tools/tool.cpp b/tools/tool.cpp
index 92a4bd4..150481b 100644
--- a/tools/tool.cpp
+++ b/tools/tool.cpp
@@ -413,14 +413,14 @@ namespace mongo {
         ProgressMeter m( fileLength );
 
         while ( read < fileLength ) {
-            int readlen = fread(buf, 4, 1, file);
+            fread(buf, 4, 1, file);
             int size = ((int*)buf)[0];
             if ( size >= BUF_SIZE ) {
                 cerr << "got an object of size: " << size << "  terminating..." << endl;
             }
             uassert( 10264 ,  "invalid object size" , size < BUF_SIZE );
 
-            readlen = fread(buf+4, size-4, 1, file);
+            fread(buf+4, size-4, 1, file);
 
             BSONObj o( buf );
             if ( _objcheck && ! o.valid() ) {
diff --git a/util/ramlog.h b/util/ramlog.h
index fc588e6..b2f3aa0 100644
--- a/util/ramlog.h
+++ b/util/ramlog.h
@@ -108,7 +108,6 @@ namespace mongo {
             vector<const char*> v;
             get( v );
 
-            bool first = true;
             s << "<pre>\n";
             for( int i = 0; i < (int)v.size(); i++ ) {
                 assert( strlen(v[i]) > 20 );
@@ -126,7 +125,7 @@ namespace mongo {
                         stringstream r;
                         if( nr == 1 ) r << "repeat last line";
                         else r << "repeats last " << nr << " lines; ends " << string(v[last]+4,0,15);
-                        first = false; s << html::a("", r.str(), clean(v,i,x.str()));
+                        s << html::a("", r.str(), clean(v,i,x.str()));
                     }
                     else s << x.str();
                     s << '\n';