Anton,
   Can you post you results from contrib/test_summary for a make
check-fortran of llvm 2.4's gcc 4.2 compilers on linux? I'll
remove the offending flags from CC1_SPECS in darwin.h on
llvm 2.4 and post the same results for i686-apple-darwin9. Are
there any major issues left with the functionality of gfortran
under llvm?
           Jack