RFR: 8204541: Correctly support AIX xlC 16.1 symbol visibility flags [v2]

[Ichiroh Takiguchi]

On Fri, 18 Mar 2022 07:41:28 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

>> Ichiroh Takiguchi has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Remove unexpected comment
>
> make/autoconf/flags-ldflags.m4 line 80:
> 
>> 78: 
>> 79:   elif test "x$TOOLCHAIN_TYPE" = xxlc; then
>> 80:     # -bexpall should be used instead of -bnoexpall if -qvisibility option is not defined
> 
> If you hard-code for the assumption that xlc v16 is being used, then this comment does not make any sense..?

Thanks, @magicus .
I removed the comment.

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PR: https://git.openjdk.java.net/jdk/pull/7862