make error:

[Gokula-Krishnan-Sekar]

i just followed below link as it is but make error is appeared. i tried lot but i can't able solved that
http://blog.xanda.org/2012/05/16/installation-of-libemu-and-pylibemu-on-ubuntu/

Reaping losing child 0x5631c68e7c50 PID 67101
make[3]: *** [Makefile:841: emu_graph.lo] Error 1
Removing child 0x5631c68e7c50 PID 67101 from chain.
make[3]: Leaving directory '/tmp/libemu/src'
Reaping losing child 0x559cebb8c710 PID 67093
make[2]: *** [Makefile:865: all-recursive] Error 1
Removing child 0x559cebb8c710 PID 67093 from chain.
make[2]: Leaving directory '/tmp/libemu/src'
Reaping losing child 0x5636bb2f7da0 PID 67086
make[1]: *** [Makefile:463: all-recursive] Error 1
Removing child 0x5636bb2f7da0 PID 67086 from chain.
make[1]: Leaving directory '/tmp/libemu'
Reaping losing child 0x561edc071b80 PID 67085
make: *** [Makefile:372: all] Error 2
Removing child 0x561edc071b80 PID 67085 from chain.