Similar problem as #256 fixed for ZDoom extended nodes.
But this time with DeePBSP V4 extended nodes.
$ uname
Linux
$ uname -m
ppc
$ prboom-plus -iwad doom2.wad -file Avactor.wad -warp 9
[...]
ST_Init: Init status bar.
P_GetNodesVersion: using normal BSP nodes
P_CheckForDeePBSPv4Nodes: DeePBSP v4 Extended nodes are detected
P_LoadSegs_V4: compatibility loss - seg 0 references a non-existent vertex 34013184
P_LoadSegs_V4: compatibility loss - seg 1 references a non-existent vertex 34013184
I_SignalHandler: Exiting on signal: Segmentation fault
The attached patch fixes the wrong endianess for DeepBSD nodes too.
