Hi,

But mpicc is available in correct path and added also, And make detect that also; I think.
Lots of objects files are created in mpi-unix directory during compilation .

Note this part

../render.c:108: error: static declaration of 'maxclr' follows non-static declaration
../render.h:62: error: previous declaration of 'maxclr' was here
make[1]: *** [render.o] Error 1
make[1]: Leaving directory `/usr/local/povray31/source/mpi-unix'
make: [newxwin] Error 2 (ignored)

"mpicc: No such file or directory " is this mesg from mpicc ??

But which file is missing ???
No information regarding this question int compilation output !!!