Shane Miller <gshanemiller@xxxxxxxxxxx> writes: > Hi - gcc-4.3.2 seems to set a 8-byte unsigned long long variable on a > 4-byte boundary > Any help would be appreciated. Did you read the rest of my reply on gcc@? http://gcc.gnu.org/ml/gcc/2010-05/msg00002.html If that doesn't help, show us a complete small self-contained example. Ian