==> Installing libevent-2.1.12-r2q53e4tiqwcxjmtagvi4bsftgovtp35 [15/15]
==> No binary for libevent-2.1.12-r2q53e4tiqwcxjmtagvi4bsftgovtp35 found: installing from source
==> Using cached archive: /opt/spack/var/spack/cache/_source-cache/archive/92/92e6de1be9ec176428fd2367677e61ceffc2ee1cb119035037a27d346b0403bb.tar.gz
==> Ran patch() for libevent
==> libevent: Executing phase: 'autoreconf'
==> libevent: Executing phase: 'configure'
==> libevent: Executing phase: 'build'
==> Error: ProcessError: Command exited with status 2:
    'make' '-j16' 'V=1'

18 errors found in build log:
     333       true; \
     334    else \
     335       echo "No Python installed; stubbing out RPC test." >&2; \
     336       echo " "> test/regress.gen.c; \
     337       echo "#define NO_PYTHON_EXISTS" > test/regress.gen.h; \
     338    fi
  >> 339    /usr/bin/env: 'python': No such file or directory
     340    event_rpcgen.py failed, ./test/regress.gen.\[ch\] will be reused.
     341    rm -f stamp-h1
     342    touch config.h.in
     343    cd . && /bin/sh ./config.status config.h
     344    config.status: creating config.h
     345    config.status: config.h is unchanged

     ...

     401    libtool: You should recreate aclocal.m4 with macros from libtool 2.4.7
     402    libtool: and run autoconf again.
     403    libtool: Version mismatch error.  This is libtool 2.4.7, but the
     404    libtool: definition of this LT_INIT comes from libtool 2.4.6.42-b88ce-dirty.
     405    libtool: You should recreate aclocal.m4 with macros from libtool 2.4.7
     406    libtool: and run autoconf again.
  >> 407    make[1]: *** [Makefile:1865: buffer.lo] Error 63
     408    make[1]: *** Waiting for unfinished jobs....
     409    libtool: Version mismatch error.  This is libtool 2.4.7, but the
     410    libtool: definition of this LT_INIT comes from libtool 2.4.6.42-b88ce-dirty.
     411    libtool: You should recreate aclocal.m4 with macros from libtool 2.4.7
     412    libtool: and run autoconf again.
     413    libtool: Version mismatch error.  This is libtool 2.4.7, but the

     ...

     415    libtool: You should recreate aclocal.m4 with macros from libtool 2.4.7
     416    libtool: and run autoconf again.
     417    libtool: Version mismatch error.  This is libtool 2.4.7, but the
     418    libtool: definition of this LT_INIT comes from libtool 2.4.6.42-b88ce-dirty.
     419    libtool: You should recreate aclocal.m4 with macros from libtool 2.4.7
     420    libtool: and run autoconf again.
  >> 421    make[1]: *** [Makefile:1865: bufferevent_pair.lo] Error 63
     422    libtool: Version mismatch error.  This is libtool 2.4.7, but the
     423    libtool: definition of this LT_INIT comes from libtool 2.4.6.42-b88ce-dirty.
     424    libtool: You should recreate aclocal.m4 with macros from libtool 2.4.7
     425    libtool: and run autoconf again.
     426    libtool: Version mismatch error.  This is libtool 2.4.7, but the
     427    libtool: definition of this LT_INIT comes from libtool 2.4.6.42-b88ce-dirty.
     428    libtool: You should recreate aclocal.m4 with macros from libtool 2.4.7
     429    libtool: and run autoconf again.
  >> 430    make[1]: *** [Makefile:1865: event.lo] Error 63
  >> 431    make[1]: *** [Makefile:1865: evmap.lo] Error 63
     432    libtool: Version mismatch error.  This is libtool 2.4.7, but the
     433    libtool: definition of this LT_INIT comes from libtool 2.4.6.42-b88ce-dirty.
     434    libtool: You should recreate aclocal.m4 with macros from libtool 2.4.7
     435    libtool: and run autoconf again.
  >> 436    make[1]: *** [Makefile:1865: bufferevent.lo] Error 63
  >> 437    make[1]: *** [Makefile:1865: evutil.lo] Error 63
     438    libtool: Version mismatch error.  This is libtool 2.4.7, but the
     439    libtool: definition of this LT_INIT comes from libtool 2.4.6.42-b88ce-dirty.
     440    libtool: You should recreate aclocal.m4 with macros from libtool 2.4.7
     441    libtool: and run autoconf again.
  >> 442    make[1]: *** [Makefile:1865: bufferevent_filter.lo] Error 63
  >> 443    make[1]: *** [Makefile:1865: bufferevent_sock.lo] Error 63
  >> 444    make[1]: *** [Makefile:1865: bufferevent_ratelim.lo] Error 63
     445    libtool: Version mismatch error.  This is libtool 2.4.7, but the
     446    libtool: definition of this LT_INIT comes from libtool 2.4.6.42-b88ce-dirty.
     447    libtool: You should recreate aclocal.m4 with macros from libtool 2.4.7
     448    libtool: and run autoconf again.
     449    libtool: Version mismatch error.  This is libtool 2.4.7, but the
     450    libtool: definition of this LT_INIT comes from libtool 2.4.6.42-b88ce-dirty.

     ...

     463    libtool: You should recreate aclocal.m4 with macros from libtool 2.4.7
     464    libtool: and run autoconf again.
     465    libtool: Version mismatch error.  This is libtool 2.4.7, but the
     466    libtool: definition of this LT_INIT comes from libtool 2.4.6.42-b88ce-dirty.
     467    libtool: You should recreate aclocal.m4 with macros from libtool 2.4.7
     468    libtool: and run autoconf again.
  >> 469    make[1]: *** [Makefile:1865: select.lo] Error 63
  >> 470    make[1]: *** [Makefile:1865: evthread.lo] Error 63
  >> 471    make[1]: *** [Makefile:1865: evutil_time.lo] Error 63
  >> 472    make[1]: *** [Makefile:1865: listener.lo] Error 63
  >> 473    make[1]: *** [Makefile:1865: evutil_rand.lo] Error 63
  >> 474    make[1]: *** [Makefile:1865: log.lo] Error 63
     475    libtool: Version mismatch error.  This is libtool 2.4.7, but the
     476    libtool: definition of this LT_INIT comes from libtool 2.4.6.42-b88ce-dirty.
     477    libtool: You should recreate aclocal.m4 with macros from libtool 2.4.7
     478    libtool: and run autoconf again.
  >> 479    make[1]: *** [Makefile:1865: strlcpy.lo] Error 63
     480    make[1]: Leaving directory '/tmp/root/spack-stage/spack-stage-libevent-2.1.12-r2q53e4tiqwcxjmtagvi4bsftgovtp35/spack-src'
  >> 481    make: *** [Makefile:1389: all] Error 2