Bug#1027065: GM2 does not compile "Hello, world!"

[Ioann <lipkin@bms.zone>]

Package: gm2-10
Version: 102.1-6

$ cat hello.mod
FROM StrIO IMPORT WriteString, WriteLn;
BEGIN
 WriteString('hello world');
 WriteLn
END hello.

$ gm2 hello.mod
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/10/m2/m2pim/libm2pim.so: undefined reference to `RTco_select'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/10/m2/m2pim/libm2pim.so: undefined reference to `RTco_initSemaphore'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/10/m2/m2pim/libm2pim.so: undefined reference to `RTco_wait'
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/10/m2/m2pim/libm2pim.so: undefined reference to `RTco_signal'
collect2: error: ld returned 1 exit status

I am using Debian GNU/Linux 11 (bullseye) amd64.