On 18 June 2012 06:38, Ahsan Ali <ahsan.shah@xxxxxxxxx> wrote: > Dear All, > > I have been struggling with the installtion of gfortran, Now I am trying to > follow the instructions on the link http://gcc.gnu.org/wiki/InstallingGCC > > > tar xzf gcc-4.6.2.tar.gz > cd gcc-4.6.2 > ./contrib/download_prerequisites > cd .. > mkdir objdir > cd objdir > $PWD/../gcc-4.6.2/configure --prefix=/opt/gcc-4.6.2 > make > make instal > > > But I am not able to start configure. > > It shows as follows: > > [root@pmd03 gcc-4.7.0]# cd .. > [root@pmd03 ~]# mkdir objdir > [root@pmd03 ~]# cd objdir/ > [root@pmd03 objdir]# $PWD/ ../gcc-4.7.0/configure > -bash: /root/objdir/: is a directory There's a space in the command that shouldn't be there. > and if I give > [root@pmd03 objdir]# ../gcc-4.7.0/configure --prefix=/usr/local/ > checking build system type... x86_64-unknown-linux-gnu > checking host system type... x86_64-unknown-linux-gnu > checking target system type... x86_64-unknown-linux-gnu > checking for a BSD-compatible install... /usr/bin/install -c > checking whether ln works... yes > checking whether ln -s works... yes > checking for a sed that does not truncate output... /bin/sed > checking for gawk... gawk > configure: error: building out of tree but ../gcc-4.7.0 contains > host-x86_64-unknown-linux-gnu. > Use a pristine source tree when building in a separate tree It's telling you you've already run configure in the source directory. Delete the source directory and start again.
