--- src/bruch.c	2007-12-06 11:30:00.000000000 -0500
+++ b/bruch.c	2013-10-22 08:37:43.000000000 -0400
@@ -975,14 +975,16 @@
     ggterg = ggt_i(S_B_UI(bruch),S_B_OI(bruch));
 
     if (ggterg == S_B_UI(bruch)) {
+        INT tmp = S_B_OI(bruch);
         freeself_bruch(bruch);
-        M_I_I(S_B_OI(bruch) / ggterg,bruch);
+        M_I_I(tmp / ggterg,bruch);
         goto ende;
         }
 
     if (-ggterg == S_B_UI(bruch)) {
+        INT tmp = S_B_OI(bruch);
         freeself_bruch(bruch);
-        M_I_I(- S_B_OI(bruch) / ggterg,bruch);
+        M_I_I(- tmp / ggterg,bruch);
         goto ende;
         }
 
@@ -1032,12 +1034,14 @@
 
     if (S_O_K(S_B_U(bruch)) == INTEGER)
         if (S_B_UI(bruch) == 1) { 
+            INT tmp = S_B_OI(bruch);
             freeself_bruch(bruch);
-            M_I_I(S_B_OI(bruch),bruch); 
+            M_I_I(tmp,bruch); 
             goto ende; }
         else if (S_B_UI(bruch) == -1) { 
+            INT tmp = S_B_OI(bruch);
             freeself_bruch(bruch);
-            M_I_I( - S_B_OI(bruch),bruch); 
+            M_I_I( - tmp,bruch); 
             goto ende; }
     if (NEGP(S_B_O(bruch)) && NEGP(S_B_U(bruch)))
         {
><a class='active' href='/guix/log/srfi/srfi-64.upstream.scm'>log</a><a href='/guix/tree/srfi/srfi-64.upstream.scm?id=e5f3d1183c430a7b0a21b1adfe1662cd7e9de186'>tree</a><a href='/guix/commit/srfi/srfi-64.upstream.scm?id=e5f3d1183c430a7b0a21b1adfe1662cd7e9de186'>commit</a><a href='/guix/diff/srfi/srfi-64.upstream.scm?id=e5f3d1183c430a7b0a21b1adfe1662cd7e9de186'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/srfi/srfi-64.upstream.scm'>
<input type='hidden' name='id' value='e5f3d1183c430a7b0a21b1adfe1662cd7e9de186'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=e5f3d1183c430a7b0a21b1adfe1662cd7e9de186'>root</a>/<a href='/guix/log/srfi?id=e5f3d1183c430a7b0a21b1adfe1662cd7e9de186'>srfi</a>/<a href='/guix/log/srfi/srfi-64.upstream.scm?id=e5f3d1183c430a7b0a21b1adfe1662cd7e9de186'>srfi-64.upstream.scm</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/srfi/srfi-64.upstream.scm?id=e5f3d1183c430a7b0a21b1adfe1662cd7e9de186&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>