ctags --langmap option not supported

[supergrover]

install-sh failed on an incorrect option, ctags didn't support --langmap:

ctags: unrecognized option '--langmap=C:+.cu'

This caused make to fail, not revert to the project root directory and download rapidxml to tools/libcudamatrix/tools/rapidxml-1.13/

[poweic]

Just remove ctags in Makefile (both in libdnn and libcumatrix). It's just a plugin for vim. I'll fix that in the next release. Thanks!!

[poweic]

I'd like to keep both ctags and the langmap extension in Makefile.
But it might need dirty codes checking the dependencies.
Any suggestion?

[ybdarrenwang]

I encountered similar issue on Ubuntu 14.04, with error message:
/bin/sh: 1: ctags: not found
Any reason why ctags is required?

[poweic]

ctags is not required. I just forgot to remove it.
You can either simply remove it from the Makefile, or run sudo apt-get install ctags to resolve the issue.