libgo patch committed: netinet/icmp6.h require netinet/in.h on AIX

[Rainer Orth]

Hi Ian,

> This patch from Tony Reix fixes the libgo configure script to
> correctly decide whether netinet/icmp6.h exists on AIX.  Bootstrapped
> and ran Go testsuite on x86_64-pc-linux-gnu.  Committed to mainline.

unfortunately, this patch broke Solaris bootstrap (seen on Solaris 11.4,
but the headers are the same all the way back to Solaris 10):

runtime_sysinfo.go:1504:32: error: use of undefined type '_mld_hdr_t'
 type _mld2q struct { mld2q_hdr _mld_hdr_t; mld2q_sqrv uint8; mld2q_qqic uint8; mld2q_numsrc uint16; }
                                ^
runtime_sysinfo.go:1504:32: error: use of undefined type '_mld_hdr_t'

gen-sysinfo.go has

gen-sysinfo.go:type _mld_hdr_t struct { mld_icmp6_hdr _icmp6_hdr; mld_addr _in6_addr; }

which is lost in sysinfo.go due to the use of _in6_addr.  The solution
is the same as for AIX _arpcom, and the following patch allowed an
i386-pc-solaris2.11 bootstrap to finish.

	Rainer

-- 
-----------------------------------------------------------------------------
Rainer Orth, Center for Biotechnology, Bielefeld University


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