Howard, what configure options are you using? We've seen a problem like this when "--enable-strict=c89" is passed, since the features.h header deliberately avoids defining LLONG_MAX when in C89 mode. I haven't had the time to come up with a fix for this yet. -Dave On Nov 29, 2012, at 3:08 PM CST, Howard Pritchard wrote:

HI Folks,

I've done a fresh update of mpich2 trunk on my sles 11 machine, done a new autogen.sh and config of mpich. But when I compile, I get this error in this fairly recently introduced file:

src/mpi/datatype/status_set_elements_x.c: In function 'MPIR_Status_set_elements_x_impl': src/mpi/datatype/status_set_elements_x.c:41: error: 'LLONG_MAX' undeclared (first use in this function) src/mpi/datatype/status_set_elements_x.c:41: error: (Each undeclared identifier is reported only once src/mpi/datatype/status_set_elements_x.c:41: error: for each function it appears in.) make[2]: *** [src/mpi/datatype/status_set_elements_x.lo] Error 1

It looks like mpiimpl.h isn't pulling in limits.h.

Howard

-- Howard Pritchard Software Engineering Cray, Inc.