Mujoco-py: Error while Installing

[rajathkmp]

what is the gcc version that is required?

 /tmp/pip-build-u92nshqf/mujoco-py/mujoco_py/gl/eglshim.c: In function 'closeOpenGL':
    /tmp/pip-build-u92nshqf/mujoco-py/mujoco_py/gl/eglshim.c:159:5: error: 'for' loop initial declarations are only allowed in C99 mode
         for (int device_id=0; device_id<MAX_DEVICES; device_id++) {
         ^
    /tmp/pip-build-u92nshqf/mujoco-py/mujoco_py/gl/eglshim.c:159:5: note: use option -std=c99 or -std=gnu99 to compile your code
    error: command 'gcc' failed with exit status 1

[Kaixhin]

I've had the same issue by trying to install this from source on the current commit (36f3011 at the moment), but by checking out the commit from the last release (git checkout 1.50.1.0) and then installing (python setup.py install) I didn't encounter this issue. So whatever created this error has been introduced since then (at least for me).

[liyaxi1996]

I meet the same problem. Did you figure it out ?

[iSaran]

I had the same issue in Ubuntu 14.04, virtual environment, and gcc version 4.8.4. It was solved by checking out the tag 1.50.1.0, as mentioned before.

[arpit15]

The error is caused by using the an old syntax in for loop as mentioned in the error. I was able to get around by 2 options.

• Make the change in eglshim.c:159 as done here.
• Add a compiler flag -std=c99 in builder.py to allow the old syntax as done.
  I have suggested the 1st change in this pull request as it won't conflict with other compiler flags.