This is to report a successful build of GCC 4.4.2 on my laptop. ./config.guess:
i386-apple-darwin10.2.0 gcc -v: Using built-in specs. Target: x86_64-apple-darwin10.2.0 Configured with: ../gcc-4.4.2/configure --prefix=/Users/*****/Documents/MyApps/Commands/GCC/MacOSX --with-pkgversion="GNU GCC 4.4.2 Codename Lord of Compilers built Dec. 14, 2009 with GMP 4.3.1, MPFR 2.4.2, MPC 0.8.1 and Libelf 0.8.13, bootstrapped by GCC 4.4.2 Codename Optimised Bootstrapper " --with-libelf=/Users/****/Documents/MyApps/Commands/GCC/Dependencies//libelf-0.8.13 --enable-lto --with-mpc=/Users/*****/Documents/MyApps/Commands/GCC/Dependencies//mpc-0.8.1 --with-mpfr=/Users/*****/Documents/MyApps/Commands/GCC/Dependencies//mpfr-2.4.2 --with-gmp=/Users/*****/Documents/MyApps/Commands/GCC/Dependencies//gmp-4.3.1 --enable-shared --enable-static --target=x86_64-apple-darwin10.2.0 --build=x86_64-apple-darwin10.2.0 --host=x86_64-apple-darwin10.2.0 --enable-threads --enable-languages=c,c++,fortran,objc,obj-c++ --enable-werror --enable-gather-detailed-mem-stats --with-tune=core2 Thread model: posix gcc version 4.4.2 (GNU GCC 4.4.2 Codename Lord of Compilers built Dec. 14, 2009 with GMP 4.3.1, MPFR 2.4.2, MPC 0.8.1 and Libelf 0.8.13, bootstrapped by GCC 4.4.2 Codename Optimised Bootstrapper) Timings of build (was built with profiledbootstrap-built GCC 4.4.2 compiled only with C, environnement variables CC="gcc -g -O3 -fno-omit-frame-pointer"): time make profiledbootstrap ... real 339m16.074s user 93m54.877s sys 13m30.623s NB: There was a 4-hour (240 minutes) period during which the computer was asleep and did not contribute any CPU cycles. The build time was indeed closer to "user" than "real" - about 100 minutes or so. Other relevant information: uname -a: Darwin *****-**********-MacBook.local 10.2.0 Darwin Kernel Version 10.2.0: Tue Nov 3 10:37:10 PST 2009; root:xnu-1486.2.11~1/RELEASE_I386 i386 System Specs: MacBook6,1 (Late 2009) Standard Configuration Mac OS X 10.6.2 Intel Core 2 Duo 2.26 GHz 2GB DDR3 1066 MHz RAM Xcode 3.2.1 (GCC 4.2.1 (1), Apple Inc.) Bootstrap options: I built a special GCC 4.4.2 from source with Xcode's default gcc 4.2.1 and all optimisation to maximum (CC="gcc -g -O3 -fno-omit-frame-pointer") and time make profiledbootstrap called Optimised Bootstrapper . I then used the same options to build this full version of GCC 4.4.2 and again issued time make profiledbootstrap. The timings may not be fair because of optimisation and the use of a highly optimised bootstrap gcc build, but the timings are provided above. Optimised Bootstrapper took just under an hour to build, with no native language support and only the C compiler (because that's the only thing needed for bootstrapping GCC). Request for update to system-specific installation instructions: I am on Mac OS X Snow Leopard. There has been some noise around the forums that GCC fails for various reasons. It turns out that despite having all the requirements to run 64-bit systems, including a 64-bit processor (an Intel Core 2 Duo), no Macs boot the 64-bit kernel by default and only 4 (These being Mac Pros, Xserves, Macbook Pros and iMacs) are allowed to boot it at all, leaving that the system kernel runs 32-bit, but almost every application is 64-bit. Also, the command uname returns i386 despite the Core 2 Duo being more of a i686 or x86_64, a 64-bit processor. It seems therefore that config.guess confuses itself in bitness, picking the 32-bit version called i386 rather than the correct choice, x86_64. So the recommendation is to add an entry under Build Stats saying that 4.4.2 under x86_64-apple-darwin10.2.0 is successful, and to add to the system-specific installation notes to add these options to the configure: --host=x86_64-apple-darwin10 --target=x86_64-apple-darwin10 --host=x86_64-apple-darwin10 --with-tune=[core2 | generic | i686] This essentially forces configure to choose the 64-bit flavour. I selected core2 because I am not compiling executables for any other processors - Macs have all switched to either Core 2 Duo, Core 2 Quad or, in high-ends, to Intel Xeon, Nehalem architecture.
