wasm@deco:~/trydynlib$ make -B
emcc -s WASM=0 -O1 -s SIDE_MODULE=1 -DLIBK_COMPILE -o libk_so.js libk.c
emcc -s WASM=0 -O1 -s MAIN_MODULE=1 -s RUNTIME_LINKED_LIBS="['libk_so.js']" -o prog.js prog.c

wasm@deco:~/trydynlib$ node prog.js
prog!
libk.kfunc1 -> 12

wasm@deco:~/trydynlib$ make
emcc -s WASM=1 -s SIDE_MODULE=1 -DLIBK_COMPILE -o libk_so.wasm libk.c
emcc -s WASM=1 -s MAIN_MODULE=1 -s RUNTIME_LINKED_LIBS="['libk_so.wasm']" -o prog.js prog.c
warning: unexpected number of arguments 0 in call to 'kfunc1', should be 1

wasm@deco:~/trydynlib$ ll
итого 4128
-rw-r--r-- 1 wasm wasm     352 ноя  7 17:45 dso.h
-rw-r--r-- 1 wasm wasm      56 ноя  7 17:26 libk.c
-rw-r--r-- 1 wasm wasm     171 ноя  7 17:32 libk.h
-rw-r--r-- 1 wasm wasm     507 ноя  7 17:47 libk_so.wasm
-rw-r--r-- 1 wasm wasm     355 ноя  7 17:46 Makefile
-rw-r--r-- 1 wasm wasm 2335565 ноя  7 17:47 prog.asm.js
-rw-r--r-- 1 wasm wasm     144 ноя  7 17:00 prog.c
-rw-r--r-- 1 wasm wasm 1215347 ноя  7 17:47 prog.js
-rw-r--r-- 1 wasm wasm  645467 ноя  7 17:47 prog.wasm

wasm@deco:~/trydynlib$ node prog.js
prog!
libk.kfunc1 -> 12

wasm@deco:~/trydynlib$ node prog.js
prog!
libk.kfunc1 -> 12

wasm@deco:~/trydynlib$ node prog.js
loading libk_so.js
symbol arguments
symbol cleanups
symbol asmGlobalArg
symbol asmLibraryArg
symbol runPostSets
symbol setThrew
symbol NAMED_GLOBALS
prog!

Still the same:

wasm@deco:~/trydynlib$ node prog.js
prog!
external function 'kfunc1' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment
external function 'kfunc1' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment
exception thrown: abort("external function 'kfunc1' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment") at Error
    at jsStackTrace (/home/wasm/trydynlib/prog.js:1135:13)
    at stackTrace (/home/wasm/trydynlib/prog.js:1152:12)
    at abort (/home/wasm/trydynlib/prog.js:106462:44)
    at _kfunc1 (/home/wasm/trydynlib/prog.js:7564:27)
    at _main (/home/wasm/trydynlib/prog.js:30421:8)
    at Object.asm._main (/home/wasm/trydynlib/prog.js:105715:21)
    at Object.callMain (/home/wasm/trydynlib/prog.js:106292:30)
    at doRun (/home/wasm/trydynlib/prog.js:106350:60)
    at run (/home/wasm/trydynlib/prog.js:106364:5)
    at Object.<anonymous> (/home/wasm/trydynlib/prog.js:106487:1)

wasm@deco:~/trydynlib$ make

emcc -s WASM=0 -s SIDE_MODULE=1 -DLIBK_COMPILE -o libk_so.js libk.c
emcc -s WASM=0 -s MAIN_MODULE=1 -o prog.js prog.c
warning: unexpected number of arguments 0 in call to 'kfunc1', should be 1

wasm@deco:~/trydynlib$ node prog.js
prog!
external function 'kfunc1' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment
external function 'kfunc1' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment
exception thrown: abort("external function 'kfunc1' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment") at Error
    at jsStackTrace (/home/wasm/trydynlib/prog.js:1135:13)
    at stackTrace (/home/wasm/trydynlib/prog.js:1152:12)
    at abort (/home/wasm/trydynlib/prog.js:106460:44)
    at _kfunc1 (/home/wasm/trydynlib/prog.js:7562:27)
    at _main (/home/wasm/trydynlib/prog.js:30419:8)
    at Object.asm._main (/home/wasm/trydynlib/prog.js:105713:21)
    at Object.callMain (/home/wasm/trydynlib/prog.js:106290:30)
    at doRun (/home/wasm/trydynlib/prog.js:106348:60)
    at run (/home/wasm/trydynlib/prog.js:106362:5)
    at Object.<anonymous> (/home/wasm/trydynlib/prog.js:106485:1)