cc1 warning when building gcc-3.1

[Phil Edwards]

On Tue, Apr 16, 2002 at 07:47:52AM +0200, Christian Jönsson wrote:
> <snip>
>       2	ignoring command line option '-fno-implicit-templates'
> <snip>
>       2	(it is valid for C++ but not the selected language)

Your warning-counting program is a bit off.  These are the same warning,
just split across lines.


[cxa_demangle.c and dyn-string.c]
> cc1: warning: ignoring command line option '-fno-implicit-templates'
> cc1: warning: (it is valid for C++ but not the selected language)
> 
> Now, something's wrong here, right? But what is it?

The list of compiler options, including -fno-implicit-templates, is
predetermined in the makefiles.  And we assume(d) that all the sources
would be C++.  These two files are written in C.  The compiler knows this,
and switches languages, and then correctly warns that we're passing some
C++ options.

Nothing particularly wrong.  If you'd like to submit a makefile patch
which exmaines the lists of options, and strips the C++-only ones when
these two files are being compiled, that's cool.

There are other warnings emitted with these two files which are more serious.

Phil

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