FunctionCompileExportLibrary["function.dll", Function[
   Typed[arg, "MachineInteger"], arg + 1]]

lib = FunctionCompileExportLibrary["function.dll",
          Function[Typed[arg, "MachineInteger"], arg + 1],
           "CompilerOptions" -> "CreateLibraryOptions" ->
              {"SystemLibraries" -> {"WolframRTL_Static_Minimal"}}];

Needs["CCompilerDriver`"]

test = CreateExecutable["
   #include <stdio.h>
   #include <inttypes.h>
   int64_t Main(int64_t);
   int main() {
      printf("%" PRId64, Main(10));
   }",
   "test", "Libraries" -> {FileNameJoin[{$CCompilerDefaultDirectory, "function.lib"}]}];

RunProcess[test, "StandardOutput"]

(* "11" *)