Error while make results

[Agalakdak]

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I tried to run the benchmark but I got an error, what could be the problem?

bench.h:84:13: error: conflicting types for ‘socklen_t’; have ‘int’

make results gmake[1]: Entering directory '/home/user/lmbench/src' gcc -O -DSYS5 -Dvalloc=malloc -DS_IFIFO=S_IFFIFO -c lib_tcp.c -o ../bin/x86_64-linux-gnu/lib_tcp.o In file included from lib_tcp.c:9: bench.h:84:13: error: conflicting types for ‘socklen_t’; have ‘int’ 84 | typedef int socklen_t; | ^~~~~~~~~ In file included from bench.h:17: /usr/include/unistd.h:274:21: note: previous declaration of ‘socklen_t’ with type ‘socklen_t’ {aka ‘unsigned int’} 274 | typedef __socklen_t socklen_t; | ^~~~~~~~~ gmake[1]: *** [Makefile:227: ../bin/x86_64-linux-gnu/lib_tcp.o] Error 1 gmake[1]: Leaving directory '/home/user/lmbench/src' make: *** [Makefile:114: lmbench] Error 2