[sql] Import reference version of SQLite 3.7.6.3.

third_party/sqlite/sqlite-src-3070603/src/test_mutex.c

 /*
 ** 2008 June 18
 **
 ** The author disclaims copyright to this source code.  In place of
 ** a legal notice, here is a blessing:
 **
 **    May you do good and not evil.
 **    May you find forgiveness for yourself and forgive others.
 **    May you share freely, never taking more than you give.
 **
@@ skipping 419 matching lines @@
   for(i=0; i<sizeof(aCmd)/sizeof(aCmd[0]); i++){
     Tcl_CreateObjCommand(interp, aCmd[i].zName, aCmd[i].xProc, 0, 0);
   }
 
   Tcl_LinkVar(interp, "disable_mutex_init", 
               (char*)&g.disableInit, TCL_LINK_INT);
   Tcl_LinkVar(interp, "disable_mutex_try", 
               (char*)&g.disableTry, TCL_LINK_INT);
   return SQLITE_OK;
 }