Hej, > My default gcc is 2.95.3, so I installed a newer version in my own > home directory, it's gcc-3.4.4. Now I want to install openmpi and > compile it with this new version. I dont know how to force it not to
You do generally compile and install openmpi (and many other free software) by running ./configure make make install where configure looks for your system's peculiarities. Just tell configure to use your own gcc by e.g. setting an environment variable: export CC=/home/mine/gcc/gcc ./configure hint: you can also tell configure where to install openmpi with prefix, e.g. export CC=/home/mine/gcc/gcc ./configure --prefix=/home/mine/openmpi/ Maybe you'll have to set other env vars as well (if your system's linker e.g. does not like the new gcc). For more information have a look at configure's help (./configure --help) Best regards Fabian
