Sorry, typo, that should read “fork”, not “form” (stupid autocorrect).

On Tue, Nov 28, 2017 at 10:33 PM Nathan Goldbaum <> wrote:
Hi Sean,

This is a known issue and fixing it will require a fix in our form of rockstsar. I’m personally unsure how to fix it. See

If you have any idea how to modify rockstar to fix this that would be very much appreciated.

If you build on Linux you will likely not hit this issue.


On Tue, Nov 28, 2017 at 8:49 PM Sean Larkin <> wrote:
I have been trying to install Rockstar with yt onto a computer running macOS sierra 10.12, using both the install script and manually.

For the install script, I get this error:

Building Rockstar





  File "/Users/user1/Rockstar/yt-conda/lib/python3.6/site-packages/conda_build/", line 1147, in build

    utils.check_call_env(cmd, env=env, cwd=src_dir)

  File "/Users/user1/Rockstar/yt-conda/lib/python3.6/site-packages/conda_build/", line 628, in check_call_env

    return _func_defaulting_env_to_os_environ(subprocess.check_call, *popenargs, **kwargs)

  File "/Users/user1/Rockstar/yt-conda/lib/python3.6/site-packages/conda_build/", line 624, in _func_defaulting_env_to_os_environ

    return func(_args, **kwargs)

  File "/Users/user1/Rockstar/yt-conda/lib/python3.6/", line 291, in check_call

    raise CalledProcessError(retcode, cmd)

subprocess.CalledProcessError: Command '['/bin/bash', '-x', '-e', '/Users/user1/Rockstar/yt-conda/conda-bld/rockstar_1511919771484/work/']' returned non-zero exit status 2.



Failure.  Check /Users/user1/Rockstar/yt-conda/yt_install.log.  The last 10 lines are above.

And when installing manually, after stating "make lib" i get this error:

/bin/sh: pkg-config: command not found

gcc -m64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_BSD_SOURCE -D_POSIX_SOURCE -D_POSIX_C_SOURCE=200809L -D_SVID_SOURCE -D_DARWIN_C_SOURCE -Wall -fno-math-errno -fPIC  -shared rockstar.c check_syscalls.c fof.c groupies.c subhalo_metric.c potential.c nfw.c jacobi.c fun_times.c interleaving.c universe_time.c hubble.c integrate.c distance.c config_vars.c config.c bounds.c inthash.c io/read_config.c client.c server.c merger.c inet/socket.c inet/rsocket.c inet/address.c io/meta_io.c io/io_internal.c io/io_ascii.c io/stringparse.c io/io_gadget.c io/io_generic.c io/io_art.c io/io_tipsy.c io/io_bgc2.c io/io_util.c io/io_arepo.c io/io_hdf5.c -o -lm -O3 -std=c99

In file included from server.c:241:

./load_balance.c:8:21: warning: using floating point absolute value function

      'fabs' when argument is of integer type [-Wabsolute-value]

      i = ceil(sqrt(fabs(in)))+1;


./load_balance.c:8:21: note: use function 'llabs' instead

      i = ceil(sqrt(fabs(in)))+1;



1 warning generated.

Undefined symbols for architecture x86_64:

  "_GROUPIES_fast3tree_box_inside_sphere", referenced from:

      _GROUPIES_fast3tree_find_sphere_offset in groupies-eb1fe8.o

ld: symbol(s) not found for architecture x86_64

clang: error: linker command failed with exit code 1 (use -v to see invocation)

make: *** [lib] Error 1

I am not sure what is causing the error for install script, but for the manual install, I think it is clang using the wrong c++ standard library. I have attempted to change the library used, but nothing has worked for me so far.
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