build emacs and gnutls not found

Question

I built emacs26 on Ubuntu16.04, when I executed ./config --prefix=/usr/local/emacs , it showed like this:

configure: error: The following required libraries were not found:
     gnutls
Maybe some development libraries/packages are missing?
If you don't want to link with them give
     --with-gnutls=no
as options to configure

I tried to solve this problem many times, but failed. Who can help me, thank you very much.

Answer 1

The error message tells you two ways in which to solve your problem.

1. Install the gnutls development package. You can find it by doing: apt-cache search 'libgnutls.*-dev', and then install it with apt-get.
2. Link without gnutls, a la ./config --prefix=/usr/local/emacs --with-gnutls=no

Answer 2

The only thing that worked for me was installing pkg-config.

Answer 3

Fixed on CentOS:

yum install gnutls-devel