(try 6) Hi, I'm trying to install MPICH on SL6.5 for the first time and make crashed with the message: ….. make[3]: Nothing to be done for `all'. make[3]: Leaving directory `/tmp/mpich-3.1/src/mpl' Making all in tools/topo/hwloc/hwloc make[3]: Entering directory `/tmp/mpich-3.1/src/pm/hydra/tools/topo/hwloc/hwloc' Making all in src make[4]: Entering directory `/tmp/mpich-3.1/src/pm/hydra/tools/topo/hwloc/hwloc/src' CC topology.lo gcc: /lib/hwloc": No such file or directory <command-line>: warning: missing terminating " character make[4]: *** [topology.lo] Error 1 make[4]: Leaving directory `/tmp/mpich-3.1/src/pm/hydra/tools/topo/hwloc/hwloc/src' make[3]: *** [all-recursive] Error 1 make[3]: Leaving directory `/tmp/mpich-3.1/src/pm/hydra/tools/topo/hwloc/hwloc' make[2]: *** [all-recursive] Error 1 make[2]: Leaving directory `/tmp/mpich-3.1/src/pm/hydra' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/tmp/mpich-3.1' make: *** [all] Error 2 ….. My system is: $ uname -a Linux localhost.localdomain.localdomain 2.6.32-431.11.2.el6.x86_64 #1 SMP Tue Mar 25 11:15:18 CDT 2014 x86_64 x86_64 x86_64 GNU/Linux I compile MPICH as regular user. Attached are c.txt & m.txt Please advice how to proceed Thanks in advance Jan