crystal failed to compile on OSX(10.11 El Capitan) (version: 0.9.0)

[r3bo0t]

Recently got crystal upgraded via homebrew from 0.8.x to 0.9.0. Earlier everything was working fine, but suddenly with this upgrade, crystal started to fail to compile with error

crystal eval 'puts "Hello world!"'
ld: library not found for -levent
clang: error: linker command failed with exit code 1 (use -v to see invocation)
Error: execution of command failed with code: 1: `cc -o "/Users/konflikt/.crystal/crystal-run-eval.tmp" "${@}"  -rdynamic  -levent -lpcl -lpcre -lgc -lpthread -ldl`

All the required crystal dependencies are install

brew install \
  bdw-gc \
  gmp \
  libevent \
  libpcl \
  libxml2 \
  libyaml \
  llvm
Warning: bdw-gc-7.4.2 already installed
Warning: gmp-6.0.0a already installed
Warning: libevent-2.0.22 already installed
Warning: libpcl-1.12 already installed
Warning: libxml2-2.9.2 already installed
Warning: libyaml-0.1.6_1 already installed
Warning: llvm-3.6.2 already installed

Seems like an issue with current upgrade.
System: Mac OSX (10.11 El Capitan), Crystal: 0.9.0, LLVM: 3.6.2

[TBD]

export LIBRARY_PATH="$LIBRARY_PATH:/usr/local/lib"

this fixed for me, but if there are problems check http://stackoverflow.com/questions/3146274/is-it-ok-to-use-dyld-library-path-on-mac-os-x-and-whats-the-dynamic-library-s

[r3bo0t]

@TBD yes, thanks.
This solve the issue for me too. But that should be handled internally. no?

[ysbaddaden]

Not really, this is a homebrew configuration. It could be installed in /opt instead of /usr/local/lib for example.

[waj]

I also had this problem after upgrading to 10.11 but I solved it reinstalling the command line tools: xcode-select --install and selecting as the default active toolchain: xcode-select --switch /Library/Developer/CommandLineTools

Seems like XCode doesn't look by default for libraries at /usr/local/lib anymore. My understanding is that Homebrew should at least warn about this when running brew doctor.

[asterite]

@Conflikt I just upgraded to El Capitan, had the same issue, did what @waj suggested and I'm having everything working again. Can you confirm this fixed it for you too?

[squarism]

Same problem (levent not found despite having deps installed). Same situation (upgraded to 10.11). @waj fix worked for me. Thanks! 🍰 Normally I wouldn't comment on a closed issue but asterite was wondering if it worked for someone else.

[r3bo0t]

@asterite, I already mentioned the same thing worked for me too in my last comment conflikt commented on Oct 22, 2015. I guess you missed that 😃

[gottlike]

@asterite Maybe this should be mentioned in the Mac OS install docs. I was having the same problem and was lucky enough to find this Github issue..

[asterite]

Yeah, it's just so frequent that I think it's worth it. Just did so: http://crystal-lang.org/docs/installation/on_mac_osx_using_homebrew.html

[gottlike]

👍