It looks like you configured with gfortran 4.7.2
(/nm/programs/third_party/gcc-4.7.2-rhel5/bin/gfortran).
Did you change your path after that, such that a different gfortran was
found/used to build Open MPI?
I ask because real*16 (etc.) were all found and used successfully in configure,
but
I'm trying to build openmpi v.1.6.4 using a local build of gcc 4.7.2 on
rhel6.
The configure and build scripts are attached. The config.log and
build.output are attached.
The last few lines of the build output is:
make[3]: Entering directory