Re: 4.6.3 build error: go (gccgo) does not seem to see configure

[Ian Lance Taylor <iant at google dot com>]

Michael Shell <list1@michaelshell.org> writes:

> g++ -c -I ../../gcc-4.6.3/gcc/go -I ../../gcc-4.6.3/gcc/go/gofrontend -I. -Igo -I../../gcc-4.6.3/gcc -I../../gcc-4.6.3/gcc/go -I../../gcc-4.6.3/gcc/../include -I../../gcc-4.6.3/gcc/../libcpp/include  -I../../gcc-4.6.3/gcc/../libdecnumber -I../../gcc-4.6.3/gcc/../libdecnumber/bid -I../libdecnumber    -fomit-frame-pointer -g -O2 -DIN_GCC   -W -Wall -Wwrite-strings -Wcast-qual -Wmissing-format-attribute   -DHAVE_CONFIG_H ../../gcc-4.6.3/gcc/go/gofrontend/dataflow.cc -o go/dataflow.o
> In file included from ../../gcc-4.6.3/gcc/go/gofrontend/dataflow.cc:7:
> ../../gcc-4.6.3/gcc/go/go-system.h:118:3: error: #error "requires hash table type"
> ../../gcc-4.6.3/gcc/system.h:462: error: declaration of C function 'const char* strsignal(int)' conflicts with
> /usr/include/string.h:359: error: previous declaration 'char* strsignal(int)' here
> ../../gcc-4.6.3/gcc/go/gofrontend/gogo.h:640: error: ISO C++ forbids declaration of 'Unordered_map_hash' with no type
> ../../gcc-4.6.3/gcc/go/gofrontend/gogo.h:640: error: expected ';' before 'Map_descriptors'
> ../../gcc-4.6.3/gcc/go/gofrontend/gogo.h:644: error: ISO C++ forbids declaration of 'Unordered_map_hash' with no type
> ../../gcc-4.6.3/gcc/go/gofrontend/gogo.h:644: error: expected ';' before 'Type_descriptor_decls'
> .
> .
>
>
> It seems that gccgo does not see that I HAVE_STRSIGNAL and
> HAVE_TR1_UNORDERED_MAP and HAVE_EXT_HASH_MAP although my 
> gcc-build/gcc/config.log:


I don't know what is going wrong here.  I recommend running the failing
command yourself, adding the -H option, and see where auto-host.h is
coming from.  Perhaps the compilation is somehow picking up the wrong
auto-host.h.

Ian