Without the change install phase fails as:
installing
install flags: -j16 ...
...
./.libs/libnetsnmpagent.so: file not recognized: file format not recognized
collect2: error: ld returned 1 exit status
make[1]: *** [Makefile:1012: libnetsnmpmibs.la] Error 1
make[1]: *** Waiting for unfinished jobs....