Hi,
Here's a report of a successful build and install of GCC:
$ gcc-6.2.0/config.guess
powerpc64-unknown-linux-gnu
$ newcompiler/bin/gcc -v
Using built-in specs.
COLLECT_GCC=newcompiler/bin/gcc
COLLECT_LTO_WRAPPER=/home/aaro/gcctest/newcompiler/libexec/gcc/powerpc-unknown-linux-gnu/6.2.0/lto-wrapper
Target: powerpc-unknown-linux-gnu
Configured with: ../gcc-6.2.0/configure --with-cpu-32=G4 --with-cpu-64=G5
--enable-targets=powerpc64-unknown-linux-gnu --disable-nls
--prefix=/home/aaro/gcctest/newcompiler --enable-languages=c,c++
--host=powerpc-unknown-linux-gnu --build=powerpc-unknown-linux-gnu
--target=powerpc-unknown-linux-gnu --with-system-zlib --with-sysroot=/
Thread model: posix
gcc version 6.2.0 (GCC)
-- Build environment ----------------------------------------------------------
host: g5-xserve-m
distro: los.git rootfs=f700f9 native=f700f9
kernel: Linux 4.8.0-rc6-g5-los_f989d71
binutils: GNU binutils 2.27
make: GNU Make 4.1
libc: GNU C Library (GNU libc) stable release version 2.24
zlib: 1.2.8
mpfr: 3.1.3
gmp: 60000
-- Time consumed --------------------------------------------------------------
configure: real 0m 8.84s
user 0m 6.72s
sys 0m 4.10s
bootstrap: real 5h 9m 10s
user 9h 18m 44s
sys 25m 4.96s
install: real 0m 36.88s
user 0m 28.17s
sys 0m 29.76s
-- Hardware details -----------------------------------------------------------
MemTotal: 8070684 kB
processor : 0
cpu : PPC970FX, altivec supported
clock : 2300.000000MHz
revision : 3.0 (pvr 003c 0300)
processor : 1
cpu : PPC970FX, altivec supported
clock : 2300.000000MHz
revision : 3.0 (pvr 003c 0300)
timebase : 33333333
platform : PowerMac
model : RackMac3,1
machine : RackMac3,1
motherboard : RackMac3,1 MacRISC4 Power Macintosh
detected as : 339 (XServe G5)
pmac flags : 00000000
L2 cache : 512K unified
pmac-generation : NewWorld
A.