title: terminating app with signal 6 in xcode
body: <p>my project is working fine when i not upgrade xcode to ios 6..
  but after upgrading i ve this error...</p>
  
  <p>collect2: ld terminated with signal 6 [Abort trap: 6]
  ld(22918,0x7fff72e6f960) malloc: <strong>* error for object 0x7fe300c4d130: pointer being freed was not allocated
  *</strong> set a breakpoint in malloc_error_break to debug
  Command /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/llvm-gcc-4.2 failed with exit code 1</p>
  
  <p>i tried much to find this on net but dont find any similer problem or any solution..
  please need help soon....</p>