[PATCH 2/3] misc/wscript: Specify C language version

Gedare Bloom gedare at rtems.org
Wed Mar 31 17:01:28 UTC 2021


On Wed, Mar 31, 2021 at 10:44 AM Joel Sherrill <joel at rtems.org> wrote:
>
>
>
> On Wed, Mar 31, 2021 at 9:56 AM Gedare Bloom <gedare at rtems.org> wrote:
>>
>> Should we set the cstd version at the top-level?
>
>
> That's not what was done for C++ when I looked for examples. I suppose this
> lets the C++ version vary by tool or library. And we did import some third-party
> code.
>
ok, not a big deal to me, just thinking that setting a baseline
(especially for C) makes sense.

> --joel
>
>>
>>
>> On Tue, Mar 30, 2021 at 3:16 PM Joel Sherrill <joel at rtems.org> wrote:
>> >
>> > CentOS 7 has gcc 4.8 which defaults to C90 and this results in warnings
>> > for code that is valid C99 but not C90.
>> > ---
>> >  misc/wscript | 3 ++-
>> >  1 file changed, 2 insertions(+), 1 deletion(-)
>> >
>> > diff --git a/misc/wscript b/misc/wscript
>> > index 521eddf..21e7f75 100644
>> > --- a/misc/wscript
>> > +++ b/misc/wscript
>> > @@ -51,7 +51,8 @@ def build(bld):
>> >      #
>> >      conf['warningflags'] = ['-Wall', '-Wextra', '-pedantic']
>> >      conf['optflags'] = bld.env.C_OPTS
>> > -    conf['cflags'] = ['-pipe', '-g'] + conf['optflags']
>> > +    cstd = '-std=c99'
>> > +    conf['cflags'] = [cstd] + ['-pipe', '-g'] + conf['optflags']
>> >      conf['linkflags'] = ['-g']
>> >
>> >      #
>> > --
>> > 1.8.3.1
>> >
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