I am trying to build HPC High Performance Linpack . I have figured out how to build it on SUSE. On Suse I must build a complete gcc 4.6.2 compiler from the ground up. Then ACML, openMPI, and HPL. When I build gcc, for each package I run configure with these arguments: parentDir=where I want to put it like /opt or /usr/local export LD_LIBRARY_PATH="$parentDir/lib:/usr/local/lib:/lib" export PATH=$parentDir/bin:$PATH dirArgs="--prefix=$parentDir --exec-prefix=$parentDir" gmpArgs="--with-gmp-include=$parentDir/include/ --with-gmp-lib=$parentDir/lib" The dirArgs are used for every package, the gmpArgs are used only for the packages that need GMP. I have a problem compiling HPL under RedHat: 1. If I try compiling in the same way I do under SUSE, I see "cannot find crti.o" and "cannot find crtn.o" from $parentDir/x86_64-unknown-linux-gnu/bin/ld but there is a crti.o and crtn.o in /usr/lib/x86_64-redhat-linux5E/lib64 I suspect gcc is trying to compile 32 bit even though I used this command when configuring gcc: ./configure --prefix=$parentDirectory --exec-prefix=$parentDirectory \ --with-gmp-include=$parentDirectory/include/ --with-gmp-lib=$parentDirectory/lib --with-multilib-list=m64 2. So then I tried compiling libc where I get this error: $parentDir/x86_64-unknown-linux-gnu/bin/ld: cannot find crt1.o: No such file or directory $parentDir/x86_64-unknown-linux-gnu/bin/ld: cannot find crti.o: No such file or directory $parentDir/x86_64-unknown-linux-gnu/bin/ld: cannot find crtbegin.o: No such file or directory $parentDir/x86_64-unknown-linux-gnu/bin/ld: cannot find -lgcc $parentDir/x86_64-unknown-linux-gnu/bin/ld: cannot find -lgcc_s $parentDir/x86_64-unknown-linux-gnu/bin/ld: cannot find -lgcc $parentDir/x86_64-unknown-linux-gnu/bin/ld: cannot find -lgcc_s $parentDir/x86_64-unknown-linux-gnu/bin/ld: cannot find crtend.o: No such file or directory $parentDir/x86_64-unknown-linux-gnu/bin/ld: cannot find crtn.o And try as I might I can't seem to find a crtl.asm crti.asm crtend.asm for X86_64 or in my case AMD Opteron. What do I do next? #------------------------------------------------------- # Thomas Bodine, http://www.tommythegeek.com # Dancing to the music life has given me. # Skipper S/V Frimi WWP 19 #1029