GCC rightfully complains about redefined variables, as iterator declarations
appear inside loops with a loop variable of the same name.

This patch has been sent upstream.

--- a/sets.cpp	2015-06-25 11:22:08.252821681 +0200
+++ b/sets.cpp	2015-06-25 11:22:23.239187985 +0200
@@ -768,11 +768,11 @@
       //////////////////////////////////////////////
       // Reset original missing status
 
-      vector<Individual*>::iterator i = PP->sample.begin();
-      while ( i != PP->sample.end() )
+      vector<Individual*>::iterator it = PP->sample.begin();
+      while ( it != PP->sample.end() )
 	{
-	  (*i)->missing = (*i)->flag;
-	  ++i;
+	  (*it)->missing = (*it)->flag;
+	  ++it;
 	}
 
       ////////////////////////////////////////////////

--- a/elf.cpp	2009-10-10 18:00:21.000000000 +0200
+++ b/elf.cpp	2015-06-25 11:34:06.136835756 +0200
@@ -1175,10 +1175,10 @@
 	  << setw(8) << gcnt << " "
 	  << setw(8) << (double)cnt / (double)gcnt << "\n";
 
-      map<int,int>::iterator i = chr_cnt.begin();
-      while ( i != chr_cnt.end() )
+      map<int,int>::iterator it = chr_cnt.begin();
+      while ( it != chr_cnt.end() )
 	{
-	  int c = i->first;
+	  int c = it->first;
 	  int x = chr_cnt.find( c )->second;
 	  int y = chr_gcnt.find( c )->second;
 	  
@@ -1189,7 +1189,7 @@
 	      << setw(8) << y << " "
 	      << setw(8) << (double)x / (double)y << "\n";
 	  
-	  ++i;
+	  ++it;
 	}
       
     }

--- plink-1.07-src/idhelp.cpp	2009-10-10 18:00:22.000000000 +0200
+++ plink-1.07-src/idhelp.cpp.patched	2015-06-25 11:37:39.387204086 +0200
@@ -772,12 +772,12 @@
       for (int j = 0 ; j < jointField.size(); j++ )
 	{
 	  set<IDField*> & jf = jointField[j];
-	  set<IDField*>::iterator j = jf.begin();
+	  set<IDField*>::iterator jit = jf.begin();
 	  PP->printLOG(" { ");
-	  while ( j != jf.end() )
+	  while ( jit != jf.end() )
 	    {
-	      PP->printLOG( (*j)->name + " " );
-	      ++j;
+	      PP->printLOG( (*jit)->name + " " );
+	      ++jit;
 	    }
 	  PP->printLOG(" }");
 	}
ch'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=9a19d85f1e2b94c311f9f0c913435205227b9d75'>root</a>/<a href='/guix/log/etc?id=9a19d85f1e2b94c311f9f0c913435205227b9d75'>etc</a>/<a href='/guix/log/etc/guix-daemon.service.in?id=9a19d85f1e2b94c311f9f0c913435205227b9d75'>guix-daemon.service.in</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/etc/guix-daemon.service.in?id=9a19d85f1e2b94c311f9f0c913435205227b9d75&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2022-10-23 02:00:26 +0200'>2022-10-23</span></td><td><a href='/guix/commit/etc/guix-daemon.service.in?id=068f1a1905099f32beec9a8c4904efbb4c503981'>etc: systemd services shouldn't ‘RemainAfterExit’.</a><span class='msg-avail'>...<span class='msg-tooltip'>* etc/guix-daemon.service.in (RemainAfterExit): Don't.
* etc/guix-publish.service.in (RemainAfterExit): Likewise don't.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2022-10-23 02:00:25 +0200'>2022-10-23</span></td><td><a href='/guix/commit/etc/guix-daemon.service.in?id=0f6ec662f626eb5ff0685a20ca7e153dae7442e6'>etc: Add ‘Restart=always’ to both systemd services.</a><span class='msg-avail'>...<span class='msg-tooltip'>* etc/guix-daemon.service.in (Restart): ‘Always’ do.
* etc/guix-publish.service.in (Restart): Likewise.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2022-10-23 02:00:00 +0200'>2022-10-23</span></td><td><a href='/guix/commit/etc/guix-daemon.service.in?id=f16d91295a743d43b1604103b1399a621badea8c'>etc: Add ‘OOMPolicy=continue’ to guix-daemon.service.</a><span class='msg-avail'>...<span class='msg-tooltip'>* etc/guix-daemon.service.in (OOMPolicy): Continue.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2021-07-07 23:54:20 -0400'>2021-07-07</span></td><td><a href='/guix/commit/etc/guix-daemon.service.in?id=4cbe0127a668cbcc64087c5d311308b59d39b104'>guix-install.sh: Prompt for configuring substitutes discovery.</a><span class='msg-avail'>...<span class='msg-tooltip'>Also ensure prompt_yes_no always print the message with a trailing space,
which is more pleasing to the eye.

* etc/guix-daemon.conf.in &lt;--discover=no&gt;: New guix-daemon option.
* etc/guix-daemon.service.in: Likewise.
* etc/init.d/guix-daemon.in: Likewise.
* etc/openrc/guix-daemon.in: Likewise.
* etc/guix-install.sh (configure_substitute_discovery): New procedure.
(sys_enable_guix_daemon): Ask the user whether automatic substitute discovery
should be enabled.  Set the '--discover' argument accordingly.
(prompt_yes_no): Add a trailing space to the message.
(sys_authorize_build_farms): Remove trailing space from the message argument.
* NEWS (Distribution): Add news.
</span></span></td><td>Maxim Cournoyer</td></tr>