Just got this from Clang 3.4.2 on Linux x86-64: In file included from topology-x86.c:23: /home/common/openmpi/svn-trunk/opal/mca/hwloc/hwloc191/hwloc/include/private/cpuid-x86.h:67:3: warning: extension used [-Wlanguage-extension-token] asm( ^ 1 warning generated.
Guess it doesn't like that assembler in there Ralph