pgadmin installation issues

[rao]

Hi,
I am getting these errors when I try to install pgadmin8. Could someone please help me out as I am new postgresql.
Rao

gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -fno-strict-aliasing -fPIC -I../../src/interfaces/libpq -I. -I../../src/include -c -o misc.o misc.c -MMD
misc.c: In function `pg_logdir_ls':
misc.c:188: warning: passing arg 3 of `ParseDateTime' makes pointer from integer without a cast
misc.c:188: warning: passing arg 4 of `ParseDateTime' from incompatible pointer type
misc.c:188: warning: passing arg 5 of `ParseDateTime' makes integer from pointer without a cast
misc.c:188: warning: passing arg 6 of `ParseDateTime' makes pointer from integer without a cast
misc.c:188: error: too many arguments to function `ParseDateTime'
misc.c: In function `pg_postmaster_starttime':
misc.c:277: warning: unsigned int format, pid_t arg (arg 3)
gmake: *** [misc.o] Error 1