by gueleto:

Dear all,

I'm trying to build go 1.2 on the latest NetBSD official version 6.1.3 using gcc 4.8

$ gcc -v
Using built-in specs.
COLLECT_GCC=/usr/pkg/gcc48/bin/gcc
COLLECT_LTO_WRAPPER=/usr/pkg/gcc48/libexec/gcc/i486--netbsdelf/4.8.2/lto-wrapper
Target: i486--netbsdelf
Configured with: ../gcc-4.8.2/configure --enable-languages='c obj-c++ objc fortran c++'
--enable-shared --enable-long-long --with-local-prefix=/usr/pkg/gcc48 --enable-libssp
--enable-threads=posix --with-boot-ldflags='-static-libstdc++ -static-libgcc
-Wl,-R/usr/pkg/lib ' --with-gnu-ld --with-ld=/usr/bin/ld --with-gnu-as
--with-as=/usr/bin/as --with-arch=i486 --with-tune=i486 --enable-nls
--with-libiconv-prefix=/usr --with-gmp=/usr/pkg --with-mpc=/usr/pkg --with-mpfr=/usr/pkg
--with-cloog=/usr/pkg --enable-cloog-backend=isl --enable-__cxa_atexit
--with-gxx-include-dir=/usr/pkg/gcc48/include/c++/ --prefix=/usr/pkg/gcc48
--build=i486--netbsdelf --host=i486--netbsdelf --infodir=/usr/pkg/gcc48/info
--mandir=/usr/pkg/gcc48/man
Thread model: posix
gcc version 4.8.2 (GCC) 

It is a pretty old x86 system. The error I get is :

cmd/go
SIGILL: illegal instruction
PC=0x808b72c

runtime.cmpbody()
        /usr/pkg/go/src/pkg/runtime/asm_386.s:1248 +0xc fp=0xbbae0db8
runtime.cmpstring(0x81f87b8, 0x4, 0x81f2e60, 0x1, 0x18761920)
        /usr/pkg/go/src/pkg/runtime/asm_386.s:1195 +0x15 fp=0xbbae0dbc
strconv.ParseBool(0x81f87b8, 0x4, 0x81df020, 0x0, 0x0)
        /usr/pkg/go/src/pkg/strconv/atob.go:11 +0x55 fp=0xbbae0df0
flag.(*boolValue).Set(0x83f0ff5, 0x81f87b8, 0x4, 0xbbbcbc20, 0x83f0ff5)
        /usr/pkg/go/src/pkg/flag/flag.go:87 +0x30 fp=0xbbae0e08
flag.(*FlagSet).parseOne(0x83e7dfc, 0x8, 0x81d0c40, 0x0)
        /usr/pkg/go/src/pkg/flag/flag.go:761 +0x62b fp=0xbbae0ecc
flag.(*FlagSet).Parse(0x83e7dfc, 0x1870a010, 0x2, 0x2, 0x1, ...)
        /usr/pkg/go/src/pkg/flag/flag.go:792 +0x41 fp=0xbbae0ee0
main.main()
        /usr/pkg/go/src/cmd/go/main.go:158 +0x426 fp=0xbbae0f98
runtime.main()
        /usr/pkg/go/src/pkg/runtime/proc.c:220 +0xff fp=0xbbae0fcc
runtime.goexit()
        /usr/pkg/go/src/pkg/runtime/proc.c:1394 fp=0xbbae0fd0

goroutine 3 [syscall]:
os/signal.loop()
        /usr/pkg/go/src/pkg/os/signal/signal_unix.go:21 +0x1e
created by os/signal.init·1
        /usr/pkg/go/src/pkg/os/signal/signal_unix.go:27 +0x31

I'm not savvy enough to interpret this error. Could you please help me with 
pointers of how to fix this. If it's a NetBSD related prblem I'll contact the os
developper but wanted to have your opinion first.

Thank you very much.

Anguel