Unable to compile GCC 8.2.0 from source

[gcc-help@baha.mu]

> On 25 Nov 2018, at 20:01, L A Walsh <gcc@tlinx.org> wrote:
> 
> On 11/25/2018 10:19 AM, gcc-help@baha.mu wrote:
>> Hello
>> 
>> I'm trying to build GCC 8.2.0 from source in order to provide a package to use on a Synology NAS (https://github.com/SynoCommunity/spksrc/), since it doesn't ship with a C compiler, however the compilation fails with this error:
>> 
>> ../../libiberty/obstack.c: In function ‘call_chunkfun’:
>> ../../libiberty/obstack.c:92:23: error: request for member ‘extra’ in something not a structure or union
>>     return h->chunkfun.extra (h->extra_arg, size);
>>  
> ----  That looks like C++ syntax.
> 
> Have you tried g++?

What do you mean by "try g++"? I'm using the classic configure/make/make install method here, I don't specifically invoke a compiler command. Basically, I'm doing what's documented here: https://gcc.gnu.org/wiki/InstallingGCC

m.