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<div>I have installed mpich2-1.3.1 from sources on my 64bit Linux workstation using GCC 4.1.2. My Fortran code uses -fdefault-integer-8 to promote the Fortran integers, however this appears to be promoting the COMMON symbols in mpif.h. This causes the Warning:
size of symbol ‘mpifcmb1_’ changed from 40 to 20 in libmpich.a (setbot.o).</div>
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<div>What can I do to fix this? Is there some other way besides recompiling mpich2 to use 8-byte integers? Thanks.</div>
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