9bac66390c
The -fdump-go-spec flag to GCC recently changed to be more fastidious
about handling incomplete types. This caused some breakage in
mk[r]sysinfo.sh on Solaris. This commit adjusts for the new behavior.
Specifically:
* Types that refer to _in6_addr may be hidden behind a typedef and can
no longer be filtered out with `grep -v in6_addr`. Instead just
rewrite the definition of _in6_addr to [16]byte wherever it appears.
* timestruc_t is now (correctly) emitted as an alias for timespec, so this
case is handled specially.
* stdio.h is included in sysinfo.c to avoid emitting an incomplete
definition of the FILE type.
* Dummy definitions for _u?pad128_t are now emitted automatically,
which conflict with the definitions installed by mk[r]sysinfo.sh.
These definitions were actually dead code, so just remove them.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/278672
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