intel

[mmacleod]

Hello,

I'm using the intel 11.1 fortran compiler, ifort ,on a 64bit version of Fedora 11 with no luck. I get the following error message when I try to use the compiler.

/opt/intel/Compiler/11.1/064/bin/intel64/fortcom: error while loading shared libraries: libstdc++.so.5: cannot open shared object file: No such file or directory

I was wondering if there is anything I can do about this or do I have to wait for a new ifort that supports Fedora 11.

Thanks!

Matthew

[TimP]

The usual method for finding the shared libraries at run time is to set LD_LIBRARY_PATH, which is one of the functions of sourceing the ifortvars script. Naturally, there are other ways, but nothing will change here according to whether FC11 is "supported." You need the libcompat, as described in the advice about Fedora Core posted at the top of the forum.

[mmacleod]

Thanks for your reply tim18. I am a bit confused b/c I did source the ifortvars script,

. /opt/intel/Compiler/11.1/064/bin/intel64/ifortvars_intel64.sh

and have the LD_LIBRARY_PATH set accordingly, namely,

LD_LIBRARY_PATH=/opt/intel/Compiler/11.1/064/lib/intel64

so the error,

/opt/intel/Compiler/11.1/064/bin/intel64/fortcom: error while loading shared libraries: libstdc++.so.5: cannot open shared object file: No such file or directory

seems strange to me, I have the libstdc package installed, anyway, why can't this fortcom find the shared libs?

[eliosh]

I think recent Linux distrubutions have no libstdc++.so.5

You should either link your existing libstdc++.so.6 or install a libstdc++5 packages from an older version of your Linux.

[Kevin_D_Intel]

fortcom expects to find /usr/lib64/libstdc++.so.5 (see below).

The 11.1 installation currently requires the 32-bit version found under /usr/lib.

Double-check that this 64-bit version is installed too.

[bash]$ ldd /opt/spdtools/compiler/cpro/Compiler/11.1/064/bin/intel64/fortcom
        libm.so.6 => /lib64/libm.so.6 (0x0000003c66600000)
        libstdc++.so.5 => /usr/lib64/libstdc++.so.5 (0x00002aaaaaad6000)
        libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x0000003c6ae00000)
        libc.so.6 => /lib64/libc.so.6 (0x0000003c66200000)
        libdl.so.2 => /lib64/libdl.so.2 (0x0000003c66a00000)
        /lib64/ld-linux-x86-64.so.2 (0x0000003c65a00000)[/bash]

[TimP]

Sorry about mis-reading the thread earlier. The question about how to install the libstdc++.so.5 is addressed in the advice about Fedora posted at the top of the forum. The current 64-bit compiler requires both the 32- and 64-bit copies of this RedHat 4 library. You could wait a long time for ifort to abandon the backward compatibility and run with current libstdc++, particularly while the old libraries remain as an option even in distros which ifort doesn't support.