pthread_create not found in ubuntu

Question

I am trying to run cocos2d-x on Ubuntu. It shows this error:

-- Looking for IceConnectionNumber in ICE
-- Looking for IceConnectionNumber in ICE - found
-- Found X11: /usr/lib/x86_64-linux-gnu/libX11.so
-- Found OpenGL: /usr/lib/x86_64-linux-gnu/libGL.so  
-- Looking for include file pthread.h
-- Looking for include file pthread.h - found
-- Looking for pthread_create
-- Looking for pthread_create - not found
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - found
-- Found Threads: TRUE  
-- Could NOT find Doxygen (missing:  DOXYGEN_EXECUTABLE) 

What does this mean?

Answer 1

it seems like it eventually finds pthread_create but it is missing Doxygen. Run sudo apt-get install doxygen, and retry it.

Answer 2

pthread_create may be present in few different places. Script checked them all and found this function in pthread. Then it looked for Doxygen and was not able to find it. Install it and try again, script should be able to proceed.