node-gyp: Stuck with `node-gyp rebuild` failing on mac os x

└─(17:27:00 on master ✹)──> npm install                                                                                                                              ──(Fri,Oct16)─┘
npm WARN peerDependencies The peer dependency @lukekarrys/jade-runtime@^1.11.1 included from templatizer will no
npm WARN peerDependencies longer be automatically installed to fulfill the peerDependency 
npm WARN peerDependencies in npm 3+. Your application will need to depend on it explicitly.
\
> node-stringprep@0.7.2 install /Users/nishant.pathak/projects/chatclient-web/node_modules/stanza.io/node_modules/xmpp-jid/node_modules/node-stringprep
> node-gyp rebuild

  SOLINK_MODULE(target) Release/node_stringprep.node
ld: library not found for -lgcc_s.10.5
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [Release/node_stringprep.node] Error 1
gyp ERR! build error 
gyp ERR! stack Error: `make` failed with exit code: 2
gyp ERR! stack     at ChildProcess.onExit (/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:270:23)
gyp ERR! stack     at emitTwo (events.js:87:13)
gyp ERR! stack     at ChildProcess.emit (events.js:172:7)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:200:12)
gyp ERR! System Darwin 14.5.0
gyp ERR! command "/usr/local/bin/node" "/usr/local/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /Users/nishant.pathak/projects/chatclient-web/node_modules/stanza.io/node_modules/xmpp-jid/node_modules/node-stringprep
gyp ERR! node -v v4.2.1
gyp ERR! node-gyp -v v3.0.3
gyp ERR! not ok 
\
> iconv@2.1.11 install /Users/nishant.pathak/projects/chatclient-web/node_modules/jxt/node_modules/ltx/node_modules/node-expat/node_modules/iconv
> node-gyp rebuild

  CC(target) Release/obj.target/libiconv/deps/libiconv/lib/iconv.o
  LIBTOOL-STATIC Release/iconv.a
  CXX(target) Release/obj.target/iconv/src/binding.o
  SOLINK_MODULE(target) Release/iconv.node
ld: library not found for -lgcc_s.10.5
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [Release/iconv.node] Error 1
gyp ERR! build error 
gyp ERR! stack Error: `make` failed with exit code: 2
gyp ERR! stack     at ChildProcess.onExit (/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:270:23)
gyp ERR! stack     at emitTwo (events.js:87:13)
gyp ERR! stack     at ChildProcess.emit (events.js:172:7)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:200:12)
gyp ERR! System Darwin 14.5.0
gyp ERR! command "/usr/local/bin/node" "/usr/local/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /Users/nishant.pathak/projects/chatclient-web/node_modules/jxt/node_modules/ltx/node_modules/node-expat/node_modules/iconv
gyp ERR! node -v v4.2.1
gyp ERR! node-gyp -v v3.0.3
gyp ERR! not ok 

> fsevents@1.0.2 install /Users/nishant.pathak/projects/chatclient-web/node_modules/gulp-watch/node_modules/chokidar/node_modules/fsevents
> node-pre-gyp install --fallback-to-build

[fsevents] Success: "/Users/nishant.pathak/projects/chatclient-web/node_modules/gulp-watch/node_modules/chokidar/node_modules/fsevents/lib/binding/Release/node-v46-darwin-x64/fse.node" is installed via remote
npm ERR! Darwin 14.5.0
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "install"
npm ERR! node v4.2.1
npm ERR! npm  v2.14.7
npm ERR! code ELIFECYCLE

npm ERR! node-stringprep@0.7.2 install: `node-gyp rebuild`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the node-stringprep@0.7.2 install script 'node-gyp rebuild'.
npm ERR! This is most likely a problem with the node-stringprep package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     node-gyp rebuild
npm ERR! You can get their info via:
npm ERR!     npm owner ls node-stringprep
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     /Users/nishant.pathak/projects/chatclient-web/npm-debug.log