omrsock compilation fails on aix for jdk15 and jdk head

[adamfarley]

This issue causes the openjdk builds to fail at adoptopenjdk. Please investigate.

Platforms seen on: AIX only.

Builds pass on jdk8 and jdk11.

Last passing build for jdk15:

05:16:16  openjdk version "15" 2020-09-15
05:16:16  OpenJDK Runtime Environment AdoptOpenJDK (build 15+29-202007010337)
05:16:16  Eclipse OpenJ9 VM AdoptOpenJDK (build master-761497476, JRE 15 AIX ppc64-64-Bit Compressed References 20200630_25 (JIT enabled, AOT enabled)
05:16:16  OpenJ9   - 761497476
05:16:16  OMR      - 9e9c66654
05:16:16  JCL      - d8ad2be09f based on jdk-15+29)

Full error message included below.

[2020-07-02T04:00:29.036Z] /opt/IBM/xlC/16.1.0/bin/xlclang  -DOMRPORT_LIBRARY_DEFINE -I. -I./aix64 -I./aix -I./unix_include -I./unix -I./common -I./include -I./  -I../../include -I../include_core -I../nls -DPPC64 -D_XOPEN_SOURCE_EXTENDED=1 -D_ALL_SOURCE -DRS6000 -DAIXPPC -D_LARGE_FILES -c  -s -q64 -qarch=ppc -qalias=noansi -qxflag=LTOL:LTOL0 -qsuppress=1506-1108 -qlanglvl=extended0x -qxlcompatmacros -O3 -qhalt=w -g   -o omrsock.o ./unix/omrsock.c
[2020-07-02T04:00:29.036Z] In file included from ./unix/omrsock.c:30:
[2020-07-02T04:00:29.036Z] In file included from ./unix_include/omrsock.h:43:
[2020-07-02T04:00:29.036Z] /usr/include/netinet/tcp.h:208:25: error: field has incomplete type 'struct in6_addr'
[2020-07-02T04:00:29.036Z]         struct in6_addr host;           /* host or subnet */
[2020-07-02T04:00:29.036Z]                         ^
[2020-07-02T04:00:29.036Z] /usr/include/netinet/tcp.h:208:16: note: forward declaration of 'struct in6_addr'
[2020-07-02T04:00:29.036Z]         struct in6_addr host;           /* host or subnet */
[2020-07-02T04:00:29.036Z]                ^
[2020-07-02T04:00:29.036Z] /usr/include/netinet/tcp.h:209:25: error: field has incomplete type 'struct in6_addr'
[2020-07-02T04:00:29.036Z]         struct in6_addr netmask;        /* netmask if "host" is a subnet */
[2020-07-02T04:00:29.036Z]                         ^
[2020-07-02T04:00:29.036Z] /usr/include/netinet/tcp.h:208:16: note: forward declaration of 'struct in6_addr'
[2020-07-02T04:00:29.036Z]         struct in6_addr host;           /* host or subnet */

Full build output can be found here for jdk15 and here for jdk head

[youngar]

@rwy0717 @caohaley

[youngar]

@adamfarley Thanks for submitting this issue. We believe that this has been fixed, but if the problem persists, please re-open this issue.