1. prereqs
yum -y install cmake gcc-c++ make rpm-build svn ncurses-devel
2. get sources
svn checkout https://svn.code.sf.net/p/oorexx/code-0/main/trunk /opt/oorexx-code/
3. build
mkdir -p /opt/oorexx-build
cd /opt/oorexx-build/
cmake -DBUILD_RPM=1 -DOS_DIST=fedora30 /opt/oorexx-code/
make
cpack ./