[Ohrrpgce] SVN: teeemcee/13413 ifdef MINIMAL_OS don't try to spawn programs, show explanatory errors in

[subversion at HamsterRepublic.com]

teeemcee
2023-12-18 21:43:25 -0800 (Mon, 18 Dec 2023)
284
ifdef MINIMAL_OS don't try to spawn programs, show explanatory errors instead

In fact, much of the os.bi is now completely unused in minos builds (see next
commit), so instead of needing stubs for them we can leave those symbols
undefined, and get a link error on any accidental use.
---
U   wip/allmodex.bas
U   wip/audioedit.bas
U   wip/common.rbas
U   wip/custom.bas
U   wip/distribmenu.bas
U   wip/filelayer.cpp
U   wip/lumpfile.bas
U   wip/util.bas