=== guest: DragonFly 6.5-DEVELOPMENT #2 (kernel rebuilt with sym probe neutered so ncr claims the QEMU lsi53c895a; ncr0 attached) ===
$ cc -O2 -o ncr_dma32 ncr_dma32.c
rc2=0  (no diagnostics)
$ ls -la /tmp/ncr_dma32
-rwxr-xr-x 1 root wheel 9216 Sep 15 08:59 /tmp/ncr_dma32