__illumos__      5049 src/dps8/dps8_cpu.c #  if defined(__illumos__)
__illumos__       255 src/libsir/include/sir/platform.h #   if defined(__illumos__) || ((defined(__sun) || defined(__sun__)) && \
__illumos__       447 src/libsir/include/sir/platform.h #  if defined(__illumos__)