cant compile on debian 11

[sparky4]

cd src/lib/doslib/hw/cpu
./make.sh build all dos86l
common.mak(85): Error(E21): Extension(s) (.C.OBJ) not defined
common.mak(86): Warning(W20): Command list does not belong to any target
common.mak(92): Error(E21): Extension(s) (.ASM.OBJ) not defined
common.mak(93): Warning(W20): Command list does not belong to any target
Error(E02): Make execution terminated
Error(E42): Last command making (src/lib/doslib/hw/cpu/dos86l/cpu.lib) returned a bad status
Error(E02): Make execution terminated

buildall.sh returns same error

[sparky4]

using newest open watcom 2.0 to compile btw

[sparky4]

compiles perfectly on 1.9

[jmalak]

To doslib compilation problem.
The issue is that OW 2.0 wmake was fixed to properly handle filenames and rules as case sensitive for *NIX hosts.
In all doslib makefiles are used incorrect rules as
.C.OBJ:
.ASM.OBJ:
which is wrong on Linux with OW 2.0 now, but works with OW 1.9.
These rules must be fixed by lower-casing.
On non-*NIX hosts it works as case-insensitive rules
.C.OBJ:
.c.obj:
are the same rules.
On Linux
.C.OBJ:
.c.obj:
are two different rules with OW 2.0.
For portable makefiles you should use lower cased rules to work properly on Linux.