I just downloaded libevent-2.0.21-stable, which I am hoping to compile so that I can use tmux. However, when I run:./configure --prefix=/path/to/libevent-2.0.21-stable/makemake installeverything seems to work well until the last few lines, where I get the following error:...make[3]: Leaving directory `/nfs/titan7/u11/vid/bin/utils/libevent-2.0.21-stable'make[2]: Leaving directory `/nfs/titan7/u11/vid/bin/utils/libevent-2.0.21-stable'Making install in includemake[2]: Entering directory `/nfs/titan7/u11/vid/bin/utils/libevent-2.0.21-stable/include'make[3]: Entering directory `/nfs/titan7/u11/vid/bin/utils/libevent-2.0.21-stable/include'make[3]: Nothing to be done for `install-exec-am'. /bin/mkdir -p '/d4m/vid/bin/utils/libevent-2.0.21-stable/include' /bin/mkdir -p '/d4m/vid/bin/utils/libevent-2.0.21-stable/include/event2' /usr/bin/install -c -m 644  event2/buffer.h event2/buffer_compat.h event2/bufferevent.h event2/bufferevent_compat.h event2/bufferevent_ssl.h event2/bufferevent_struct.h event2/dns.h event2/dns_compat.h event2/dns_struct.h event2/event.h event2/event_compat.h event2/event_struct.h event2/http.h event2/http_compat.h event2/http_struct.h event2/keyvalq_struct.h event2/listener.h event2/rpc.h event2/rpc_compat.h event2/rpc_struct.h event2/tag.h event2/tag_compat.h event2/thread.h event2/util.h '/d4m/vid/bin/utils/libevent-2.0.21-stable/include/event2'                                                                             /usr/bin/install: `event2/buffer.h' and `/d4m/vid/bin/utils/libevent-2.0.21-stable/include/event2/buffer.h' are the same file/usr/bin/install: `event2/buffer_compat.h' and `/d4m/vid/bin/utils/libevent-2.0.21-stable/include/event2/buffer_compat.h' are the same file/usr/bin/install: `event2/bufferevent.h' and `/d4m/vid/bin/utils/libevent-2.0.21-stable/include/event2/bufferevent.h' are the same file/usr/bin/install: `event2/bufferevent_compat.h' and `/d4m/vid/bin/utils/libevent-2.0.21-stable/include/event2/bufferevent_compat.h' are the same file/usr/bin/install: `event2/bufferevent_ssl.h' and `/d4m/vid/bin/utils/libevent-2.0.21-stable/include/event2/bufferevent_ssl.h' are the same file/usr/bin/install: `event2/bufferevent_struct.h' and `/d4m/vid/bin/utils/libevent-2.0.21-stable/include/event2/bufferevent_struct.h' are the same file/usr/bin/install: `event2/dns.h' and `/d4m/vid/bin/utils/libevent-2.0.21-stable/include/event2/dns.h' are the same file/usr/bin/install: `event2/dns_compat.h' and `/d4m/vid/bin/utils/libevent-2.0.21-stable/include/event2/dns_compat.h' are the same file/usr/bin/install: `event2/dns_struct.h' and `/d4m/vid/bin/utils/libevent-2.0.21-stable/include/event2/dns_struct.h' are the same file/usr/bin/install: `event2/event.h' and `/d4m/vid/bin/utils/libevent-2.0.21-stable/include/event2/event.h' are the same file/usr/bin/install: `event2/event_compat.h' and `/d4m/vid/bin/utils/libevent-2.0.21-stable/include/event2/event_compat.h' are the same file/usr/bin/install: `event2/event_struct.h' and `/d4m/vid/bin/utils/libevent-2.0.21-stable/include/event2/event_struct.h' are the same file/usr/bin/install: `event2/http.h' and `/d4m/vid/bin/utils/libevent-2.0.21-stable/include/event2/http.h' are the same file/usr/bin/install: `event2/http_compat.h' and `/d4m/vid/bin/utils/libevent-2.0.21-stable/include/event2/http_compat.h' are the same file/usr/bin/install: `event2/http_struct.h' and `/d4m/vid/bin/utils/libevent-2.0.21-stable/include/event2/http_struct.h' are the same file/usr/bin/install: `event2/keyvalq_struct.h' and `/d4m/vid/bin/utils/libevent-2.0.21-stable/include/event2/keyvalq_struct.h' are the same file/usr/bin/install: `event2/listener.h' and `/d4m/vid/bin/utils/libevent-2.0.21-stable/include/event2/listener.h' are the same file/usr/bin/install: `event2/rpc.h' and `/d4m/vid/bin/utils/libevent-2.0.21-stable/include/event2/rpc.h' are the same file/usr/bin/install: `event2/rpc_compat.h' and `/d4m/vid/bin/utils/libevent-2.0.21-stable/include/event2/rpc_compat.h' are the same file/usr/bin/install: `event2/rpc_struct.h' and `/d4m/vid/bin/utils/libevent-2.0.21-stable/include/event2/rpc_struct.h' are the same file/usr/bin/install: `event2/tag.h' and `/d4m/vid/bin/utils/libevent-2.0.21-stable/include/event2/tag.h' are the same file/usr/bin/install: `event2/tag_compat.h' and `/d4m/vid/bin/utils/libevent-2.0.21-stable/include/event2/tag_compat.h' are the same file/usr/bin/install: `event2/thread.h' and `/d4m/vid/bin/utils/libevent-2.0.21-stable/include/event2/thread.h' are the same file/usr/bin/install: `event2/util.h' and `/d4m/vid/bin/utils/libevent-2.0.21-stable/include/event2/util.h' are the same filemake[3]: *** [install-nobase_includeHEADERS] Error 1make[3]: Leaving directory `/nfs/titan7/u11/vid/bin/utils/libevent-2.0.21-stable/include'make[2]: *** [install-am] Error 2make[2]: Leaving directory `/nfs/titan7/u11/vid/bin/utils/libevent-2.0.21-stable/include'make[1]: *** [install-recursive] Error 1make[1]: Leaving directory `/nfs/titan7/u11/vid/bin/utils/libevent-2.0.21-stable'make: *** [install] Error 2make install  6.15s user 8.22s system 86% cpu 16.622 totalRunning make verify also returns the following error:EPOLL test-eof: OKAY test-weof: OKAY test-time: OKAY test-changelist: OKAY regress: OKAYEPOLL (changelist) test-eof: OKAY test-weof: OKAY test-time: OKAY test-changelist: OKAY regress:   FAIL regress.c:717: assert(abs(timeval_msec_diff(((&start)), ((&res.tvs[2]))) - (500)) <= 50): 145 vs 50main/persistent_active_timeout:   [persistent_active_timeout FAILED]1/179 TESTS FAILED. (0 skipped)FAILEDDEVPOLLSkipping testPOLL test-eof: OKAY test-weof: OKAY test-time: OKAY test-changelist: OKAY regress: OKAYSELECT test-eof: OKAY test-weof: OKAY test-time: OKAY test-changelist: OKAY regress: OKAYWIN32Skipping testFAIL: ../test/test.sh==================1 of 1 test failed==================make[4]: *** [check-TESTS] Error 1make[4]: Leaving directory `/nfs/titan7/u11/vid/bin/utils/libevent-2.0.21-stable/test'make[3]: *** [check-am] Error 2make[3]: Leaving directory `/nfs/titan7/u11/vid/bin/utils/libevent-2.0.21-stable/test'make[2]: *** [check] Error 2make[2]: Leaving directory `/nfs/titan7/u11/vid/bin/utils/libevent-2.0.21-stable/test'make[1]: *** [check-recursive] Error 1make[1]: Leaving directory `/nfs/titan7/u11/vid/bin/utils/libevent-2.0.21-stable'make: *** [check] Error 2make verify  22.71s user 24.82s system 16% cpu 4:41.78 totalI am stuck at this point. Why do the compilation and verification fail?
Unable to install libevent without admin priviledges
compiling;tmux;make
It seems that you want to install the files to the same place where you extracted the tarball.  Extract the tarball to a different place or try a different prefix and it should work (worse option: use make install -i to ignore all error messages).