RFR: 8286562: GCC 12 reports some compiler warnings [v2]

[Yasumasa Suenaga]

On Wed, 11 May 2022 13:47:43 GMT, Kim Barrett <kbarrett at openjdk.org> wrote:

>> Yasumasa Suenaga has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Avoid pragma error in before GCC 12
>
> src/jdk.jpackage/linux/native/applauncher/LinuxPackage.c line 193:
> 
>> 191: #if defined(__GNUC__) && __GNUC__ >= 12
>> 192: #pragma GCC diagnostic pop
>> 193: #endif
> 
> Rather than all this warning suppression cruft and the comment explaining why
> it's okay, just compute the `(strBufNextChar - strBufBegin)` offset a few
> lines earlier, before the realloc.

I did do that in new commit, and the warning has gone!

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PR: https://git.openjdk.java.net/jdk/pull/8646