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Re: preprocessor/7947: cpp0 -std=gnu99 rejects # comments
From: |
Neil Booth |
Subject: |
Re: preprocessor/7947: cpp0 -std=gnu99 rejects # comments |
Date: |
Tue, 17 Sep 2002 20:22:38 +0100 |
User-agent: |
Mutt/1.4i |
Marcus Brinkmann wrote:-
> That is my fault for not being precise enough in my bug report, sorry.
>
> The problem is that gcc calls the preprocessor with this ordering when
> compiling an assembler file (foo.S) with the -std=gnu99 option.
>
> Try "echo \# foo > foo.S" and "gcc -std=gnu99 -o foo foo.S", this triggers
> the bug. -v shows that gcc passes -std=gnu99 to cpp when preprocessing the
> file.
Right, but everything you state is intentional. -lang-asm deliberately
comes first, otherwise it would clobber various other flags the user
may have passed, such as -fdollars-in-identifiers, -trigraphs etc.
The problem you have is that -std=gnu99 applies to the C language, and
not to assembler.
What is the reason you need to pass the switch? If it's to avoid a
spurious warning, we may be able to disable the warning if -lang-asm.
If it's to achieve some additional functionality, we may be able to
retain that functionality if -lang-asm.
Neil.