06:38 <egg|zzz|egg> !tell rsparkyc lamont had some success in that direction I think

06:38 <Qboid> egg|zzz|egg: I'll redirect this as soon as they are around.

14:48 <rsparkyc> out of curiosity (and because i'm on a mac), what does it take to get principia working for osx, and why is it any harder than linux?

14:48 <Qboid> rsparkyc: egg|zzz|egg left a message for you in #principia [11.04.2017 06:38:27]: "lamont had some success in that direction I think"

14:49 <rsparkyc> ahh, lamont, is this true?

14:50 <rsparkyc> !macintosh

14:50 <Qboid> There seems to be no build for Macintosh!

14:50 <rsparkyc> !linux

14:50 <Qboid> Principia is now distributed here: http://forum.kerbalspaceprogram.com/index.php?/topic/62205-principia/

15:26 <rsparkyc> trying to build principia on osx, i've pulled the latest tag, and have run ./install_deps, and then make, but i'm getting the following error:

15:26 <rsparkyc> ./generate_version_header.sh

15:26 <rsparkyc> clang++ -std=c++14 -stdlib=libc++ -O3 -g -fPIC -fexceptions -ferror-limit=1 -fno-omit-frame-pointer -Wall -Wpedantic -DPROJECT_DIR='std::experimental::filesystem::path("ksp_plugin_adapter/")' -DSOLUTION_DIR='std::experimental::filesystem::path("./")' -DNDEBUG -mmacosx-version-min=10.7 -arch i386 obj/tools/generate_configuration.o obj/tools/generate_profiles.o obj/tools/journal_proto_processor.o obj/tools/main.o obj/seriali

15:26 <rsparkyc> usage: date [-jnRu] [-d dst] [-r seconds] [-t west] [-v[+|-]val[ymwdHMS]] ...

15:26 <rsparkyc> No change to git describe, leaving base/version.generated.h untouched

15:26 <rsparkyc> [-f fmt date | [[[mm]dd]HH]MM[[cc]yy][.ss]] [+format]

15:26 <rsparkyc> ld: library not found for -lsupc++

15:26 <rsparkyc> clang: error: linker command failed with exit code 1 (use -v to see invocation)

15:26 <rsparkyc> make: *** [bin/tools] Error 1

15:35 <rsparkyc> removing the -lsupc++ now gives me this:

15:35 <rsparkyc> Undefined symbols for architecture i386:

15:35 <rsparkyc> "google::GetStackTrace(void**, unsigned long, int)", referenced from:

15:35 <rsparkyc> google::LogMessage::RecordCrashReason(google::glog_internal_namespace_::CrashReason*) in libglog.a(libglog_la-logging.o)

15:35 <rsparkyc> google::RawLog__(int, char const*, int, char const*, ...) in libglog.a(libglog_la-raw_logging.o)

15:35 <rsparkyc> google::LogMessage::SendToLog() in libglog.a(libglog_la-logging.o)

15:35 <rsparkyc> google::glog_internal_namespace_::DumpStackTraceToString(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >*) in libglog.a(libglog_la-utilities.o)

15:35 <rsparkyc> google::DumpStackTraceAndExit() in libglog.a(libglog_la-utilities.o)

15:35 <rsparkyc> google::(anonymous namespace)::FailureSignalHandler(int, __siginfo*, void*) in libglog.a(libglog_la-signalhandler.o)

15:35 <rsparkyc> ld: symbol(s) not found for architecture i386

17:56 <GH> [Principia] pleroy pushed 8 new commits to master: https://git.io/vSX5w

17:56 <GH> Principia/master ae2d546 pleroy: Ifdef.

17:56 <GH> Principia/master 8f39a54 pleroy: Mathematica output.

17:56 <GH> Principia/master 167835c pleroy: Ephemeris convergence test.

19:53 <GH> [Principia] pleroy opened pull request #1320: Convergence analysis of the KSP system (master...Kerbal) https://git.io/vS1YE

19:56 <GH> [Principia] pleroy commented on issue #1320: retest this please https://git.io/vS1Y5

20:35 <GH> [Principia] pleroy pushed 4 new commits to master: https://git.io/vS1nY

20:35 <GH> Principia/master 2379263 pleroy: KSP convergence test.

20:35 <GH> Principia/master 26547d5 pleroy: Run the test.

20:35 <GH> Principia/master 51d12e3 pleroy: Lint.

21:30 <maccollo> https://www.dropbox.com/s/csah01k9xeepo5v/Screenshot%202017-04-11%2023.30.25.png?dl=0

21:33 <maccollo> eternally stable =D

21:35 <maccollo> https://www.dropbox.com/s/6cbd7s804jwip0a/Screenshot%202017-04-11%2023.34.16.png?dl=0

21:36 <maccollo> or at least for several years

21:40 <UmbralRaptor> hundreds of megaseconds is basically an eternity.

21:42 <rsparkyc> i'm still here on a mac :(

21:43 <boidlo> hi there

21:54 <maccollo> it's to bad this orbit doesn't seem very useful...

22:43 <maccollo> I have a square orbit1

22:43 <maccollo> !

22:48 <maccollo> https://www.dropbox.com/s/dxrf79otklv0gki/Screenshot%202017-04-12%2000.48.00.png?dl=0

22:48 <maccollo> a stable square orbit!

23:05 <maccollo> https://www.dropbox.com/s/85jk5756r5nvo7b/Screenshot%202017-04-12%2001.04.56.png?dl=0

23:11 <maccollo> same orbit, but in the Kerbin reference frame

23:47 <UmbralRaptor> https://arxiv.org/abs/1704.02957