DDE on Pi4

I am having difficulty building a Pi rom on the Pi 4 using DDE 26.

It hangs at header export at the RTSupport module on the line:

do GNU.gawk -- "/.ifndef RT/./endif/ h.modhdr -> o._h_RTSupport

If I use DDE30b it won’t run Prepare correctly.

Any ideas please?

It seems I was missing a Sysmerge. All is now well (although the instructions have not been updated to reflect RiscOS rather than castle etc. inside the source when registering the source tree)

I am too late for this one, however, for future reference, I have written a full ROOL DDE installation tutorial, that considers also installing it on old releases of RISC OS and how to do it to avoid problems.

Please let me know if there are new issues that I am not addressing on that tutorial, thx.

Link here: https://paolozaino.wordpress.com/2020/10/17/risc-os-installing-rool-desktop-development-environment-dde-tutorial/