You need an installed and working GCCSDK <https://www.riscos.info/downloads/gccsdk/latest/> cross-
compiler and REXEN <https://www.cp15.org/programming/>.
First, copy the source and build a native copy of perl for your host system. Then, in the source to be
cross-compiled:
1.
$ ./Configure
2. Select the RISC OS hint file (hints/riscos.sh). The default answers for the rest of the questions
are usually sufficient.
Note that, if you wish to run "Configure" non-interactively (see the INSTALL document for details),
to have it select the correct hint file, you'll need to provide the argument "-Dhintfile=riscos" on
the "Configure" command-line.
3.
$ make miniperl
4. This should build "miniperl" and then fail when it tries to run it.
5. Copy the miniperl executable from the native build done earlier to replace the cross-compiled
miniperl.
6.
$ make
7. This will use "miniperl" to complete the rest of the build.