elb generates a dist/soul.c with all El modules inlined. Linking
dist/soul.c alone is sufficient and is exactly what the local mac
build does. Including other dist/*.c files causes two failures:
1. dist/chat.c has a capability-violation #error that fires when the
file is compiled as a utility module (outside the cgi entrypoint).
2. --allow-multiple-definition masked other issues silently.
Drop OTHER_C, drop --allow-multiple-definition, drop the now-unused
elp-c-decls.h generation step. The cc command now matches the proven
local build exactly.
will.anderson