Unable to install on Ubuntu 14.04 on Cloud9

[sivabalan]

I see the following message on trying 'npm install sync-prompt'

sync-prompt@0.4.1 install /home/ubuntu/workspace/node_modules/sync-prompt
node-gyp rebuild

child_process: customFds option is deprecated, use stdio instead.
make: Entering directory /home/ubuntu/workspace/node_modules/sync-prompt/build' CXX(target) Release/obj.target/sync_prompt/src/sync_prompt.o ../src/sync_prompt.cc: In function ‘void setStdinEcho(bool)’: ../src/sync_prompt.cc:33:18: error: aggregate ‘setStdinEcho(bool)::termios tty’ has incomplete type and cannot be defined struct termios tty; ^ ../src/sync_prompt.cc:34:31: error: ‘tcgetattr’ was not declared in this scope tcgetattr(STDIN_FILENO, &tty); ^ ../src/sync_prompt.cc:36:21: error: ‘ECHO’ was not declared in this scope tty.c_lflag &= ~ECHO; ^ ../src/sync_prompt.cc:38:20: error: ‘ECHO’ was not declared in this scope tty.c_lflag |= ECHO; ^ ../src/sync_prompt.cc:40:34: error: ‘TCSANOW’ was not declared in this scope (void) tcsetattr(STDIN_FILENO, TCSANOW, &tty); ^ ../src/sync_prompt.cc:40:47: error: ‘tcsetattr’ was not declared in this scope (void) tcsetattr(STDIN_FILENO, TCSANOW, &tty); ^ make: *** [Release/obj.target/sync_prompt/src/sync_prompt.o] Error 1 make: Leaving directory/home/ubuntu/workspace/node_modules/sync-prompt/build'
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:267:23)
gyp ERR! stack at ChildProcess.emit (events.js:110:17)
gyp ERR! stack at Process.ChildProcess._handle.onexit (child_process.js:1067:12)
gyp ERR! System Linux 3.14.13-c9
gyp ERR! command "node" "/usr/local/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /home/ubuntu/workspace/node_modules/sync-prompt
gyp ERR! node -v v0.12.0
gyp ERR! node-gyp -v v1.0.2
gyp ERR! not ok
npm ERR! Linux 3.14.13-c9
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "install" "sync-prompt"
npm ERR! node v0.12.0
npm ERR! npm v2.5.1
npm ERR! code ELIFECYCLE

npm ERR! sync-prompt@0.4.1 install: node-gyp rebuild
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the sync-prompt@0.4.1 install script 'node-gyp rebuild'.
npm ERR! This is most likely a problem with the sync-prompt 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 sync-prompt
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR! /home/ubuntu/workspace/npm-debug.log