RFR: JDK-8329257: AIX: Switch HOTSPOT_TOOLCHAIN_TYPE from xlc to gcc

[Joachim Kern]

On Fri, 29 Mar 2024 05:23:57 GMT, Julian Waters <jwaters at openjdk.org> wrote:

> > The rest of the changes are needed because of using utilities/compilerWarnings_xlc.hpp the compiler is much more nagging about ill formatted printf
> 
> Did you mean compilerWarnings_gcc.hpp?

Yes, you're right. I fixed it.

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PR Comment: https://git.openjdk.org/jdk/pull/18536#issuecomment-2031447588