This is the earlier version of DevKitCube. No C library, no C++ support.
From the README.txt :
Build options for GCC are (gcc -v) :
C:\devkitcube\bin>powerpc-eabi-elf-gcc -v
Reading specs from ../lib/gcc-lib/powerpc-eabi-elf/3.2.3/specs
Configured with: ../../src/gcc/configure
--prefix=/cygdrive/c/devkitcube
--target=powerpc-eabi-elf
--with-cpu=750
--disable-threads
--enable-languages=c
--disable-shared
--disable-nls
--with-newlib
Thread model: single
gcc version 3.2.3 20030331 (prerelease)
For binutils (ld -v) :
C:\devkitcube\bin>powerpc-eabi-elf-ld -v
GNU ld version 2.13.90.0.18 20030121
No more available for download.