Comment 2 for bug 770836

Bit more on this,

the section

C++ FE
error: uninitialized const 'd' [-fpermissive], note: 'const class D' has no user-provided default constructor

at

http://gcc.gnu.org/wiki/VerboseDiagnostics

suggests that

  const nsCaseInsensitiveStringComparator ciComparator;

merely needs to be fixed by writing:

  const nsCaseInsensitiveStringComparator ciComparator = nsCaseInsensitiveStringComparator();