[Bug driver/13464] -i8 and -r8 not passed correctly to compiler proper. and -d8 does not work

["sgk at troutmask dot apl dot washington dot edu" <gcc-bugzilla at gcc dot gnu dot org>]

------- Additional Comments From sgk at troutmask dot apl dot washington dot edu  2005-03-08 23:52 -------
The gfortran frontend defines the two options -i8 and -r8 in gfortran/lang.opt. 
gcc/opts.sh appears to process lang.opt without a problem, because the produced
options.h file contains OPT_i8 and OPT_r8.  However, neither -i8 nor -r8 is
passed to gfc_handle_option, which is defined to LANG_HOOKS_HANDLE_OPTION
in f95-lang.c.
  
I have added some debugging printfs to gfc_handle_option
  
int
gfc_handle_option (size_t scode, const char *arg, int value)
{
  int result = 1;
  enum opt_code code = (enum opt_code) scode;
  
 printf("code = %d ", code);
 if (arg != NULL) printf("arg = %s ", arg); 
 printf("value = %d\n", value);
  
The execution of gfortran shows that gfc_handle_option is
never called if -i8 or -r8 is specified.
  
troutmask:sgk[307] gfc41 -static -o kl -d8 kl.f90
code = 138 value = 1
troutmask:sgk[308] gfc41 -static -o kl -r8 kl.f90
gfc41: unrecognized option '-r8'
troutmask:sgk[309] gfc41 -static -o kl -i8 kl.f90

Note, -d8 is OPT_d8 in options.h and it is passed to gfc_handle_option.

So, it appears that some magic parsing of command line arguments occurs
before gfc_handle_option is called.  Is there someway to inhibit this
magic??

BTW, I have a patch that actually makes -d8 work.

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13464