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Building Gcc Releases on Sage.math

General Info

Ubuntu 8.04LTS installs 64 bit libs into /lib and 32 bit libs into /libs32 unlike the standard which suggests 64 bit libs in /lib64 and 32 bit libs in /lib. That leads to build failures of stock gcc releases. http://gcc.gnu.org/ml/gcc-help/2006-06/msg00071.html offers a solution:

Those "manual fixes" to the sources are quite obvious though, the "target Makefile
fragment", 'gcc/config/i386/t-linux64', has in it :

 MULTILIB_OPTIONS = m64/m32
 MULTILIB_DIRNAMES = 64 32
 MULTILIB_OSDIRNAMES = ../lib64 ../lib

and changing this into :

 MULTILIB_OPTIONS = m64/m32
 MULTILIB_DIRNAMES = 64 32
 MULTILIB_OSDIRNAMES = ../lib ../lib32

Please ping mabshoff in IRC or per email if you need any other gcc compiler, i.e. additional Fortran compilers or specific release.

Installed Compilers

System Compiler

This one might get upgrade as time progresses:

gcc -v
Using built-in specs.
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --enable-languages=c,c++,fortran,objc,obj-c++,treelang 
--prefix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib --without-included-gettext 
--enable-threads=posix --enable-nls --with-gxx-include-dir=/usr/include/c++/4.2 
--program-suffix=-4.2 --enable-clocale=gnu --enable-libstdcxx-debug --enable-objc-gc 
--enable-mpfr --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu 
--target=x86_64-linux-gnu
Thread model: posix
gcc version 4.2.4 (Ubuntu 4.2.4-1ubuntu3)

gcc 4.0.4

Build with C and C++ support:

../gcc-4.0.4/configure --enable-languages=c,c++ --prefix=/disk/scratch/mabshoff-sage-releases/tools/gcc-4.0.4

To use

source /disk/scratch/mabshoff-sage-releases/tools/gcc-4.0.4-env