RFR: JDK-8215296 do not disable c99 on Solaris (original) (raw)

David Holmes david.holmes at oracle.com
Thu Dec 13 00:51:42 UTC 2018

On 13/12/2018 10:28 am, Kim Barrett wrote:

On Dec 12, 2018, at 5:17 PM, David Holmes <david.holmes at oracle.com> wrote:

Hi Magnus, What did -Xa do? From the documentation for -Xa: The -X options cannot be used if the -std has been specified. The -X options specify varying degress of compliance to the 1990 and 1999 ISO C standard. ... -Xa ISO C plus K&R C compatibility extensions with semantic changes required by ISO C. Where K&R C and ISO C specify different semantics for the same construct, the compiler uses the ISO C interpretation. If the -Xa option is used in conjunction with the -xtransition option, the compiler issues warnings about the different semantics.

So basically -std=c89

Thanks, David

The default mode for the compiler is -std=c11.

Do AWT folk need to check this. I find it hard to understand the connection between:

-xc99=nolib and -DXPG6 ?? I was wondering the same thing about -DXPG6.

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