longjmp warning with Win64 compile

[NightStrike]

When compiling for host=target=x86_64-pc-mingw32, I see this:

../../../build/gcc-svn/gcc/libgfortran/io/list_read.c: In function
'list_formatted_read_scalar':
../../../build/gcc-svn/gcc/libgfortran/io/list_read.c:1740: warning:
argument 'type' might be clobbered by 'longjmp' or 'vfork'


I'm guessing this must be related to the recent fixes with
setjmp/longjmp.  Any ideas on how to fix it?