PR fortran/9038, a regression in 3.3/3.4 with respect to 3.2.

[Neil Booth]

Toon Moene wrote:-

> $ g77 -ffixed-line-length-none aap.F
> cc1: warning: unknown register name: line-length-none
> 
> However, f771 accepts this compiler option, as you can deduce from the 
> silence after the cc1 warning.
> 
> The cc1 warning is caused by the fact that source files ending in .F (as 
>  opposed to .f) require preprocessing by the C preprocessor.  As of 3.3 
> this is implemented by calling cc1 -E on the source file and passing the 
> result on to f771.
> 
> However, as shown above, cc1 -E -ffixed-line-length-none will provoke 
> the warning message, which is bogus, because cc1 -E has no valid 
> interpretation for -ffixed-<anything> anyway - it should just run the 
> preprocessor !
> 
> How do we get rid of the inappropriate "consumption" of 
> -ffixed-<anything> options by cc1 -E ?

The driver passes anything with -f to cc1.  You will need to add a dummy
handler to c-opts.c, unfortunately.

Neil.