I got a new corporate laptop today with RHEL8 pre-installed. Weechat isn't in the repos, so it needed to be build from source. Simple:
First, grab the source and unpack it
$ wget https://weechat.org/files/src/weechat-2.6.tar.xz
$ tar xf weechat-2.6.tar.xz
Install the needed development libraries:
$ sudo yum install -y libgcrypt-devel zlib-devel gnutls-devel\
libcurl-devel ncurses-devel php-devel \
Finally built it. These steps are in the README.adoc file.
$ cd weechat-2.6
$ mkdir build
$ cd build
$ cmake ..
$ sudo make install
Trust, but verify:
$ weechat -version
Now happily chat with your IRC friends!